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Summary of Contents for Flowserve Logix 3400IQ
- Page 1 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 USER INSTRUCTIONS Logix 3400IQ Installation & Digital Positioner Reference Guide FCD LGENIM3402-00 Experience In Motion flowserve.com...
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Page 2: Table Of Contents
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Introduction Contents Copyright, Notices and Trademarks About This Publication About This Manual Symbol Definitions Abbreviations Definitions References Technical Assistance Fieldbus Device Version Checking Software Compatibility Section 1: Logix 3400IQ Digital Positioner Description 1.1 Introduction 1.2 Fieldbus Logix 3400IQ Digital Positioner 1.3 Fieldbus Overview Section 2: Installation Overview 2.1 Introduction 2.2 Installation Components 2.3 Installation / Operation Tasks Section 3: Bench Configuration (Optional) 3.1 Introduction... - Page 3 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Section 6: Logix 3400IQ Digital Positioner Configuration 31 6.1 Introduction 6.2 Logix 3400IQ Digital Positioner Communications 6.3 Logix 3400IQ Digital Positioner Configuration Process 6.4 Device Configuration 6.5 Setting Write-protect Feature 6.6 Simulation Dip Switch 6.7 Establishing Communications 6.8 Making Initial Checks 6.9 Configuration Tasks Section 7: Operation 7.1 Introduction 7.2 Operation Tasks Section 8: Configuration Description 8.1 Introduction 8.2 Function Block Application Process 8.3 Block Description 8.4 Resource Block 8.5 Transducer Block 8.6 Analog Output Function Block 8.7 PID Function Block...
- Page 4 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Section 9: Calibration 9.1 Introduction 9.2 Overview 9.3 Calibration Section 10: Troubleshooting 10.1 Introduction 10.2 Overview 10.3 Device Troubleshooting 10.4 Device Diagnostics 10.5 Block Configuration Errors 10.6 Clearing Block Configuration Errors 10.7 Additional Troubleshooting 10.8 Simulation Mode 10.9 Logix 3400IQ Digital Positioner Troubleshooting Guide 112 10.10 Internal Positioner Issues 10.11 Stroke Characterization 10.12 Characterization Procedure 120 10.13 Initiating a Valve Signature 10.14 Signature Procedure Section 11: Software Maintenance 11.1 Code Download Appendix A: Sample Configuration Record...
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Page 5: Copyright, Notices And Trademarks
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Copyright, Notices and Trademarks While this information is presented in good faith and believed to be accurate, Flowserve disclaims the implied warranties of merchantability and fitness for a particular purpose and makes no express warranties except as may be stated in its written agreement with and for its customer. In no event is Flowserve liable to anyone for any indirect, special or consequential damages. The information and specifications in this document are subject to change without notice. Logix™ 3400IQ digital positioner is a trademark of Flowserve Corporation. TotalPlant, TDC 3000, SFC, Smartline and ST 3000 are U.S. registered trademarks of Honeywell Inc. FOUNDATION™ fieldbus is a trademark of the Fieldbus Foundation. Information Mapping is a trademark of Information Mapping Inc. Windows® is a registered trademark of Microsoft Corporation. Windows NT™ is a trademark of Microsoft Corporation. NI-FBUS Configurator™ is a trademark of National Instruments. About This Publication This manual is intended as a ‘how to’ reference for installing, wiring, configuring, starting up, and operating the Valtek Logix 3400IQ digital positioner with FOUNDATION fieldbus (FF). This manual provides detailed information for installation and operation to assist first-time Logix 3400IQ digital positioner users. This manual is written as the technical guide for the experienced fieldbus user. It does not contain information on fieldbus communications and usage. It is recommended that a user new to fieldbus attend the training courses that are taught by the Fieldbus Foundation to obtain the background knowledge that is needed to operate a fieldbus segment. Refer to Contacting the Fieldbus Foundation on page 9. About This Manual This manual provides installation, operation, maintenance for the Logix 3400IQ digital positioner with FOUNDATION fieldbus communications. Reference information is also provided. -
Page 6: Symbol Definitions
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Symbol Definitions This CAUTION symbol on the equipment refers the user to the installation manual for additional information. This symbol appears next to required information in the manual. ATTENTION, Electro-Static Discharge (ESD) hazard. Observe precautions for handling electrostatic sensitive devices. Earth Ground. Functional earth connection. NOTE: This connection shall be bonded to protective earth at the source of supply in accordance with national and local electrical code requirements. Abbreviations AO Analog Output AWG American Wire Gauge DB Database DD Device Description DDL Device Description Language EEPROM Electrically Erasable Programmable Read Only Memory EMI Electromagnetic Interference FB Function Block FBAP Function Block Application Processor FF FOUNDATION fieldbus mA... -
Page 7: Definitions
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 RFI Radio Frequency Interference ROM Read Only Memory SM System Management SMA System Management Agent SMIB System Management Information Base VCR Virtual Communication Reference VDC Volts Direct Current VFD Virtual Field Device XMTR Transmitter Definitions Term Abbrev. Definition The detection of a block leaving a particular state and when it Alarm returns back to that state. One of the standard function blocks defined by the Fieldbus Analog Output (function block) Foundation. A software program that interacts with blocks, events and Application objects. One application may interface with other applications or contain more than one application. - Page 8 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Term Abbrev. Definition A set of objects and services that provide management of a Network Management device’s communication system. Part of the device software that operates on network Network Management Agent management objects. A collection of objects and parameters comprising configura- Network Management Information NMIB tion, performance and fault-related information for the Base communication system of a device. Entities, such as blocks, alert objects, trend objects, Objects parameters, display lists, etc. Definitions and descriptions of network visible objects of a device. Various object dictionaries are contained within a Object Dictionary device. The dictionaries contain objects and their associated parameters which support the application in which they are contained. Parameters A value or variable which resides in block objects. Proportional Integral Derivative A standard control algorithm. Also refers to a PID function PID control block. Provides services that coordinate the operation of various System Management devices in a distributed fieldbus system.
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Page 9: References
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 References Publications from the Fieldbus Foundation Flowserve recommends that the user obtain these publications, which provide additional information on Fieldbus technology: Publication Title Publication Number Publisher Technical Overview, FOUNDATION FD-043 Available from the Fieldbus fieldbus Foundation Wiring and Installation 31.25kbit/s, AG-140 Voltage Mode, Wire Medium Application Guide 31.25 kbit/s Intrinsically Safe AG-163 Systems Application Guide Engineering Guidelines AG-181 Function Block Application Process FF-890, FF-891 Contained in the User Layer parts 1 & 2 Specification FF-002... -
Page 10: Fieldbus Device Version Checking
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Fieldbus Device Version Checking To assure the proper operation of the fieldbus device, always make sure the DDs loaded in the host configurator’s library are the correct ones for the hardware version. Several different hardware versions of your fieldbus devices can possibly reside on various segments at the same time. Fieldbus Foundation has provided a means to tell which version of DD is needed for a particular device in its resource block. The resource block contains the following standard parameters: • MANUFAC_ID-- This contains the manufacture’s Fieldbus FoundationÔregistration ID number. Make sure this number matches the device used. • DEV_TYPE-- This is the Foundation registered device type to designate what kind of device it is. Make sure the device type is correct for the unit. • DEV_REV-- This is the current revision of the device. • DD_REV-- This is the required DD revision level for this device. Make sure the DD supports this revision level. An improper DD may cause unexpected operation or inability to use certain features. -
Page 11: Software Compatibility
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 flowserve.com... - Page 12 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07...
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Page 13: Section 1: Logix 3400Iq Digital Positioner Description
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 L ogix 3400IQ Digital Positioner Description 1.1 Introduction About this Section This section is intended for users who have never worked with the Logix 3400IQ digital positioner fieldbus positioner interface. It provides some general information to acquaint the user with the Logix 3400IQ digital positioner. CAUTION: Flowserve recommends NI-FBUS Configurator software that runs on a variety of Personal Computer (PC) platforms using Windows NT or Windows XP . It is a bundled Windows ™ ™ software and PC-interface hardware solution that allows quick, error-free configuration and diagnosis of Valtek control products with FOUNDATION fieldbus communications. The NI-FBUS Configurator allows users to communicate with the Logix 3400IQ digital positioner from a remote location to: • Configure the Logix 3400IQ digital positioner by selecting and setting operating parameters. • Access diagnostic information to identify configuration, communication, Logix 3400IQ digital positioner or process problems. • Calibrate Logix 3400IQ digital positioner. • Request and display Logix 3400IQ digital positioner data. • Configure the Fieldbus network. NI-FBUS Configurator (version 2.36 or higher) is compatible with the latest Logix 3400IQ digital positioner. Please contact a Flowserve representative for more information. -
Page 14: Figure 1.1 Fieldbus Positioner (Logix 3400Iq Digital Positioner)
Figure 1.1 Fieldbus Positioner (Logix 3400IQ Digital Positioner) The Logix 3400IQ digital positioner in conjunction with any valve will, in essence, form a Fieldbus valve. When configured in conjunction with an Honeywell ST3000 fieldbus transmitter (for example) a complete control loop can be configured. Figure 1.2 shows a block diagram of the Logix 3400IQ digital positioner digital positioner operating with other instrument ST3000 FF Valve Logix 3400IQ DP Fieldbus Figure 1.2 Functional Block Diagram of Logix 3400IQ Digital Positioner 0perating with other instruments Theory of Operation Figure 1.3 shows the basic positioning block diagram for the Logix 3400IQ digital positioner. Tubed ATO Air Supply Sensor Inner-Loop Control... - Page 15 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 NOTE: Variable names in Figure 1.3 are internal names only and not accessible to the user. They are for reference use only. The Logix 3400IQ digital positioner receives power from the two-wire, fieldbus input signal. A digital signal, sent via fieldbus, is used as the command source. A value of 0 percent is always defined as the valve closed position and a value of 100 percent is always defined as the valve open position. Next, the command value is passed through a characterization/limits algorithm block. The positioner no longer uses cams or other mechanical means to characterize the output of the positioner. This function is done in software, which allows for in-the-field customer adjustment. The positioner has two basic modes: linear and custom characterization. In linear mode, the command signal is passed straight through to the control algorithm in a 1:1 transfer. If custom characterization is enabled, the command source is mapped to a new output curve via a 21-point, user-defined curve. In addition, two-user defined features, Soft Limits and MPC (Minimum Position Cutoff; in fieldbus terminology these are called FINAL_VALUE_CUTOFF_HI and FINAL_VALUE_CUTOFF_LO), may affect the final command signal. The actual command being used to position the stem is called CMD_USED. The CMD_USED is the actual positioning command after any characterization or user limits have been evaluated. The Logix 3400IQ digital positioner uses a two-stage, stem positioning algorithm. The two stages are comprised of an inner-loop, spool control and an outer-loop, stem position control. Referring again to Figure 1.1, a stem position sensor provides a measurement of the stem movement. The control command is compared against the stem position. If any deviation exists, the control algorithm sends a signal to the inner-loop control to move the spool, up or down, depending upon the deviation. The inner-loop then quickly adjusts the spool position. The actuator pressures change and the stem begins to move. The stem movement reduces the deviation between control command and stem position. This process continues until the deviation goes to zero. The control algorithm is both proportional and integral. This algorithm will be further explained later in the document. A more detailed example to explain the control function follows. Assume the following configuration: • Unit will receive its command from the FBAP • Custom characterization is disabled (therefore characterization is linear) •...
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Page 16: Fieldbus Overview
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 One important parameter should be discussed at this point: Inner loop offset. Referring to Figure 1.1, a number called inner loop offset (IL_OFFSET) is added to the output of the control algorithm. In order for the spool to remain in its null or balanced position, the control algorithm must output a non-zero spool command. This is the purpose of the inner loop offset. The value of this number is equivalent to the signal that must be sent to spool position control to bring it to a null position with zero stem deviation. This parameter is important for proper control and will be discussed further in the Control and Tuning section. 1.3 Fieldbus Overview Understanding Fieldbus Fieldbus is an all-digital, serial, two-way communication system which interconnects industrial ‘field’ equipment such as sensors, actuators, and controllers. Fieldbus is a Local Area Network (LAN) for field instruments with built-in capability to distribute the control application across the network. See Figure 1.4. Control Room Device (Operator Interface) Fieldbus LAN ST 3000 FF Logix 3400IQ Fieldbus Fieldbus Digital Positioner Device Device Figure 1.4 Fieldbus Connecting Control Room and Field Devices... -
Page 17: Figure 1.5 Fieldbus Devices Contain Device Applications And Function Blocks
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Application An application is software that contains function block data and operating parameters (objects) which help define the operation of a device such as, sensor data acquisition or control algorithm processing. Some devices may contain more than one application. Function Blocks Usually, a device has a set of functions it can perform. These functions are represented as function blocks within the device. See Figure 1.5. Function blocks are software that provide a general structure for specifying different device functions. Each function block is capable of performing a control func- tion or algorithm. Device functions may include analog input, analog output, and Proportional Integral Derivative (PID) control. These blocks can be connected together to build a process loop. The action of these blocks can be changed by adjusting the block’s configuration and operating parameters. Fieldbus Device Device Application Function Block Function Block Block Parameters Block Parameters Function Block Function Block Block Parameters Block Parameters Fieldbus LAN Figure 1.5 Fieldbus Devices Contain Device Applications and Function... - Page 18 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07...
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Page 19: Section 2: Installation Overview
Installation Overview 2.1 Introduction About This Section This section provides a list of components needed to install and operate the Logix 3400IQ digital positioner. Also provided is a list of typical start-up tasks and places where the user can find detailed information about performing the tasks. 2.2 Installation Components Components Needed for Installation The Logix 3400IQ digital positioner contains electronics that enable it to operate using the FOUNDATION fieldbus protocol. This digital interface requires a number of components to provide control and data communications between field devices and the control room environment. Table 2.1 outlines the basic component parts needed to install and operate the Logix 3400IQ digital positioner on a fieldbus network. Table 2.1 Components Required for Logix 3400IQ Digital Positioner Installation Components Description Logix 3400IQ Digital Positioner Fieldbus positioner. Power supply Furnishes DC power to fieldbus devices. Power conditioner Acts as a filter to prevent the power supply from interfering with the fieldbus signaling. (May be part of a fieldbus power supply.) Fieldbus cable Twisted pair shielded wire used to interconnect fieldbus devices. -
Page 20: Installation / Operation Tasks
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Operator Interface In the control room an operator station, a personal computer or host computer acts as the operator interface to the fieldbus network. Using supervisory control software applications, the field devices on a fieldbus network can be monitored and controlled at the operator interface. Figure 2.1 shows how these components go together to operate on a fieldbus network. Operator Station or Host Computer = Terminator = Power Conditioner Power Supply Fieldbus Cable Figure 2.1 Fieldbus Network Components Fieldbus Device 2.3 Installation / Operation Tasks Installation Tasks Installation of the Logix 3400IQ digital positioner is not difficult. The tasks for installing and operating the Logix 3400IQ digital positioner are outlined in Table 2.2. -
Page 21: Section 3: Bench Configuration (Optional)
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Bench Configuration (Optional) 3.1 Introduction About This Section The bench configuration is an optional procedure for checking your device. This section provides a procedure for configuring the Logix 3400IQ digital positioner. This allows the user to load configura- tion information into the device before it is connected in a fieldbus network. This enables the user to perform a bench check and configuration of the device before installation. Calibration is also possible before the device is installed in the field. Device Calibration A stroke calibration should be performed upon installation of the valve. The actuator pressure calibration should be verified on advanced models (Logix 3400IQ digital positioner). Instructions for performing this calibration can be found in Section 10. 3.2 Bench Check Configure Logix 3400IQ Digital Positioner Before Installation Using the NI-FBUS Configurator (or other fieldbus device configuration application), the user can perform an bench check of the Logix 3400IQ digital positioner before it is mounted and connected to the process hardware and the fieldbus network. By wiring the device to the fieldbus interface of a PC and using a fieldbus power supply to furnish power to the device, the user can read and write parameters in the Logix 3400IQ digital positioner. 1. Connect fieldbus cable to junction block fieldbus interface card to the fieldbus network. CAUTION: Observe polarity of fieldbus cable throughout the network. 2. Loosen end-cap lock and remove end-cap cover from terminal block end of positioner housing. - Page 22 6. Turn on PC. 7. Turn on power supply. 8. Start fieldbus configuration application on PC. 9. Establish communications. Once communications have established between the Logix 3400IQ digital positioner and the PC, the user can then query the Logix 3400IQ digital positioner. Assign Bus Address and Device Tag Check the device ID of the Logix 3400IQ digital positioner and assign a network node address to the device and assign tag names to the device. Note that the Logix 3400IQ digital positioner is shipped with default node addresses and tag names that appear at start-up. These can be changed to actual network addresses and tag names. Typically the device tag and block tags are modified to be unique throughout the network. Device Configuration The user can view the various block parameters that make up the Logix 3400IQ digital positioner configuration. Enter parameter values for your process application and write them to the device. Refer to the Logix 3400IQ Digital Positioner Start-up Guide for supplemental help. Note: it is recommended to set the device address to at least 20hex or above if using the LAS feature to avoid possible conflicts with the host system.
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Page 23: Section 4: Pre-Installation Considerations
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Pre-installation Considerations 4.1 Introduction About This Section This section reviews several topics which should be considered before installing the Logix 3400IQ digital positioner. If replacing an existing Logix 3400IQ digital positioner, this section can be skipped. 4.2 Considerations for Logix 3400IQ Digital Positioner Evaluate Conditions The Logix 3400IQ digital positioner is designed to operate in common indoor industrial environments as well as outdoors. To assure optimum performance, conditions at the mounting area should be evaluated relative to published device specifications and accepted installation practices for electronic positioners. • Environmental Conditions: • Ambient Temperature • Relative Humidity • Potential Noise Sources: • Radio Frequency Interference (RFI) • Electromagnetic Interference (EMI) • Vibration Sources: • Pumps •... -
Page 24: Figure 4.1 Typical Mounting Area Considerations Prior To Installation
Table 4.2 Logix 3400IQ Power Requirements Minimum Maximum Static Power 9 VDC @ 23mA 32 VDC @ 23mA Air Supply Requirements The Logix 3400IQ digital positioner requires an external air filter (preferably the Valtek coalescing air filter). The air supply should conform to ISA Standard S7.3 (with a dew point at least 18 °F (10°C) below ambient temperature, particle size below one micron, and oil content not to exceed one part per million). For a model with advanced diagnostics (Logix 341X digital positioner), the internal pressure sensors are rated for continuous operation up to 150 psig. Minimum supply pressure for proper operation is 30 psig. -
Page 25: Section 5: Logix 3400Iq Digital Positioner Installation
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Logix 3400IQ Digital Positioner Installation 5.1 Introduction About This Section This section provides information about the mechanical and electrical installation of the Logix 3400IQ digital positioner. It includes procedures for mounting, piping and wiring the Logix 3400IQ digital positioner for operation. Refer to Logix 3400IQ Digital Positioner IOM in for detailed information. 5.2 Mounting Variations Overview The Logix 3400IQ digital positioner can be mounted to a: • Valtek control valve • Other manufacturer’s control valve NOTE: Figure 5.1 through Figure 5.4 show typical installations for comparison Figure 5.1 Typical Linear Actuator-mounted Installation flowserve.com... -
Page 26: Figure 5.2 Rotary Transfer Case Mounting
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Figure 5.2 Rotary Transfer Case Mounting Figure 5.3 Rotary Valve with Four-bar Linkage Figure 5.4 Logix 3400IQ Digital Positioner Mounted to a Diaphragm Actuator... -
Page 27: Wiring Logix 3400Iq Digital Positioner
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 5.3 Wiring Logix 3400IQ Digital Positioner Wiring the Logix 3400IQ Digital Positioner to a Fieldbus Network The Logix 3400IQ digital positioner is designed to operate in a two-wire fieldbus network. Although wiring the Logix 3400IQ digital positioner to a fieldbus network is a simple procedure, a number of rules exist that should be followed when constructing and wiring a network. This section provides general guidelines that should be considered when wiring the Logix 3400IQ digital positioner to a fieldbus network segment. A procedure is given in this section for properly wiring the Logix 3400IQ digital positioner. For Detailed Fieldbus Wiring Information Refer to Fieldbus Foundation document AG-140, Wiring and Installation 31.25 kbit/s, Voltage Mode, Wire Medium Application Guide, for complete information on wiring fieldbus devices and building fieldbus networks. Fieldbus Device Profile Type The Logix 3400IQ digital positioner is identified as either of the following fieldbus device profile types in Table 5.1, (as per Fieldbus document FF-816): Table 5.1 FOUNDATION fieldbus Profile Types... -
Page 28: Table 5.2 Logix 3400Iq Digital Positioner Wiring Terminals
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 5.2 Logix 3400IQ Digital Positioner Wiring Terminals Wiring Terminal Screw terminals Non-polarized Fieldbus cable connections Quick clip terminals Signal + and - Fieldbus cable connections Internal Ground Connection An internal ground terminal is available next to the terminal. (See Figure 5.5.) The terminal can be used to connect the Logix 3400IQ digital positioner to earth ground. External Ground Connections While grounding the Logix 3400IQ digital positioner is not necessary for proper operation, an external ground terminal on the outside of the electronics housing provides additional noise suppression as well as protection against lightning and static discharge damage. Note that grounding may be required to meet optional approval body certification. Intrinsically Safe Applications Fieldbus barriers should be installed per manufacturer’s instructions for Logix 3400IQ digital positioners to be used in intrinsically safe applications. - Page 29 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 3. Connect the fieldbus cable shield (Fieldbus Cable Shield Connection). Normal practice for grounding a fieldbus cable segment is that the cable shield should be grounded in only one place — preferably a ground point at the power supply, intrinsically safe barrier or near the fieldbus interface. 4. Replace end-cap, and tighten end-cap lock. 5. Connect a flat-braided wire to the external ground screw of the Logix 3400IQ digital positioner housing. 6. Using the shortest length possible, connect the other end of the braided wire to a suitable earth ground. Lightning Protection The Logix 3400IQ digital positioner contains moderate protection against near lightning strikes. External lightning protection measures should be employed as needed. Conduit Seal Logix 3400IQ digital positioners installed as explosion-proof in a Class I, Division 1, Group A Hazardous (Classified) Location in accordance with ANSI/NFPA 70, the US National Electrical Code (NEC), require a ‘LISTED’ explosion-proof seal to be installed in the conduit, within 18 inches of the Logix 3400IQ digital positioner. Crouse-Hinds type EYS/EYD or EYSX/EYDX are examples of ‘LISTED’ explosionproof seals that ® meet this requirement. Logix 3400IQ digital positioners installed as explosion-proof in a Class I, Division 1, Group B, C or D Hazardous (Classified) Locations do not require an explosion-proof seal to be installed in the conduit. It is recommended that all seals installed on the Logix 3400IQ positioner provide an environmental seal to keep moisture from entering into User Interface chamber of the positioner. NOTE: Installation should conform to all national and local electrical code requirements.
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Page 30: Powering Up The Logix 3400Iq Digital Positioner
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 input impedance cannot be less than 3k ohms. This will vary according to frequency of the fieldbus communications. Typical power requirements are 23 mA @ 9-32 VDC. NOTE: The user cannot measure across the terminals of an un-powered Logix 3400IQ digital positioner and get the effective resistance. It is an impedance device, not a resistive device. 5.4 Powering Up the Logix 3400IQ Digital Positioner Pre-power Checklist • Before applying power to the fieldbus network the user should make the following checks: • Verify that the Logix 3400IQ digital positioner has been properly mounted and connected to a system. • The Logix 3400IQ digital positioner has been properly wired to a fieldbus network. • The Logix 3400IQ digital positioner housing has been properly connected to a suitable earth ground. • The operator station or host computer has been installed and connected to the fieldbus network. NOTE: If the user wants to enable the write-protect feature or change the operating mode of the Logix 3400IQ digital positioner to simulation mode, the user must change hardware dip switches on the internal electronics boards. This may require that the power be removed from the Logix 3400IQ digital positioner. See Section 6.5, Setting Write-protect Feature and Section 10.8, Simulation Mode for details. Power Up Procedure To apply power to the fieldbus network, perform the following steps: 1. Turn on all power supplies that furnish DC power to the fieldbus network. 2. Use a digital voltmeter and measure the DC voltage across the + and - Signal terminals to the Logix 3400IQ digital positioner. -
Page 31: Section 6: Logix 3400Iq Digital Positioner Configuration
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Logix 3400IQ Digital Positioner Configuration 6.1 Introduction About This Section This section explains the tasks to establish communications and configure the Logix 3400IQ digital positioner for the process application. An overview is given of the configuration tasks using the NI-FBUS Configurator application as an example. Detailed information on using the configurator application is found in the user manual supplied with the software. Prior to installing the Logix 3400IQ refer to sections 5, 6 and 7 in the Logix 3400IQ IOM for informa- tion on how to mount, install, wire and start up a Logix 3400IQ. CAUTION Before proceeding with the tasks in this section the Logix 3400IQ digital positioner must be installed and wired correctly. The user should be somewhat familiar with the fieldbus configuration. If the Logix 3400IQ digital positioner has not been installed and wired, or if the user is not familiar with device configuration, and/or does not know if the Logix 3400IQ digital positioner is configured, please read the other sections of this manual before configuring the Logix 3400IQ digital positioner. 6.2 Logix 3400IQ Digital Positioner Communications Communications and Control All communications with the Logix 3400IQ digital positioner is through an operator station or host computer running supervisory control and monitoring applications. These applications provide the operator interface to fieldbus devices and the fieldbus network. Configuration Applications CAUTION Configuration of the Logix 3400IQ digital positioner for the process application is performed also through the operator interface (operator station or PC) running a fieldbus configuration software application. A number of applications are available for the user to configure fieldbus devices. The examples presented in this manual refer to the NI-FBUS Configurator... -
Page 32: Logix 3400Iq Digital Positioner Configuration Process
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 6.3 L ogix 3400IQ Digital Positioner Configuration Process Logix 3400IQ Digital Positioner Configuration Configuration of the Logix 3400IQ digital positioner (device) involves the following steps: 1. Establishing communication between the operator interface and the device (bringing the Logix 3400IQ digital positioner on-line in a fieldbus network). See Section 6.7, Establishing Communications. 2. Making initial checks on the device serial number and firmware revision numbers. See Section 6.8, Making Initial Checks. 3. Using a fieldbus configuration application, creating or making changes to the device configura- tion. See Section 6.9, Configuration Tasks. 4. Writing the device configuration changes to the device. See Section 6.9, Configuration Tasks. 5. Saving device configuration to disk. See Section 6.9, Configuration Tasks. 6.4 Device Configuration Function Block Application Process All fieldbus devices contain one or more Function Block Application Processes (FBAP) as part of their device configuration. The FBAP in the Logix 3400IQ digital positioner is a software application that defines the particular characteristics of the Logix 3400IQ digital positioner. The FBAP comprises function blocks, a transducer block and a resource block, plus other functions which support these blocks. Each function block contains a set of operating parameters (some of which can be user-... - Page 33 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Linear vs. Rotary The positioner has two configuration settings: Linear and Rotary. In order to get better resolution, stem position sensor gains are adjusted based on the angle of rotation of the linkage. The linear setting allows for linkage rotation up to 65°. The rotary setting allows for linkage rotation up to 95°. These settings only determine the angle of sensor rotation and do not affect control parameters. If a positioner is set to linear linkage and a red LED blinks after calibration, the most common cause is that the sensor movement was greater than 65°. This can occur if the roller pin was placed in the wrong hole on the follower arm or the stem clamp is placed too high. The take-off arm should always be level with the stem clamp on linear mountings. The Logix 3400IQ positioner has an electrical measurement range of 130°. That is, the electronics will sense stem position over a 130° range of travel of the follower arm. On a rotary valve, the typical rotation is 90°. When installing a Logix 3400IQ positioner on a rotary valve, the 90° valve rotation must be centered within the 130° electrical range. If mechanical movement falls outside the electrical measurement range, the positioner can have a dead band at one end of travel in which valve move- ment cannot be sensed. Question: How do I know if the rotary linkage is centered within the 130° electrical range? Answer: The slot in the take-off arm has enough clearance around the roller pin to move the follower arm slightly. Move the valve to the fully closed position. At this position, move the follower arm within the slot clearance. If the valve does not respond to the movement; linkage adjustment is necessary. Repeat this test at the fully open position. To adjust the stem position linkage, use the A/D feedback variable viewed using AD_RAW_FB param- eter. Set TEST_MODE bit ‘Enable diagnostic Variable access.’ With the valve in its mechanical fail position (i.e. no pressure applied), slightly move the follower arm while watching the A/D feedback. If the number does not change, the arm is not centered in the electrical range. (The number will bounce one or two counts due to noise at a fixed position and should not be considered a change, it should move greater than 10 to 20 counts if the linkage is centered correctly). Rotate the take-off arm, if necessary, to bring the linkage in range. This procedure is only necessary on a rotary mounting. For Linear mountings, the red LED will blink if 65° travel is exceeded. Refer to the Calibration section for further information on stroke calibration errors. Default Configuration An FBAP containing default configuration parameters is resident in the firmware of the device and is loaded on power-up. By using the NI-FBUS Configurator (or other fieldbus configuration) application,...
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Page 34: Setting Write-Protect Feature
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 The Logix 3400IQ digital positioner can be designated as a LAS so that, in the event of a failure of the primary LAS, control in the field could continue. Please note that the Logix 3400IQ digital positioner in not designed to be the primary LAS, and, therefore, the LAS capability in the positioner is regarded as a backup LAS. In some remote applica- tions where there is no host computer continuously connected this device may be configured as the primary LAS. The LAS may be disabled by defining the Logix 3400IQ as a Basic device in the host system. Special Non-volatile Parameter and NVM Wear Out All function block parameters designated as non-volatile (N) in the FF specifications are updated to non-volatile memory (NVM) on a periodic basis. NV_CYCLE_T parameter in the resource block specifies this update interval. To provide predictable restart behavior in the transmitter, the following non-volatile parameters are updated to NVM each time they are written over the fieldbus. • MODE.TARGET for all blocks • SP.VALUE for the PID block • SP and OUT in the AO block Since these are user-written parameters, additional updates to NVM contribute negligibly to NVM wear-out. However, users are cautioned not to construct control configurations where the above parameters are written continuously (via a computer application for example) or at rates greater than the NV_CYCLE_T interval. This consideration will help minimize the possibility of NVM wear-out. In the case of MODE, this should not be a problem. When users wish to provide setpoints to the PID block via a computer application, users should use RCAS mode with its corresponding set-point value RCAS_IN. RCAS_IN is updated only at the NV_CYCLE_T update rate and this mode supports full shedding functionality and PID initialization necessary for a robust application. -
Page 35: Figure 6.1 Write-Protect Dip Switch Location On Main Pcb Cover
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 3. ATTENTION: Using a ground strap or ionizer is highly recommended when handling the electronics module, because electrostatic discharges can damage certain circuit components. 4. Locate the dip switch on the main electronic boards in the housing. 5. Set write-protect dip switch to the appropriate position on the electronics board. See Figure 6.1 and Table 6.1. 6. Replace the cover and lock the locking screw. DIP Switch Block FF Write Protect Dip Switch Figure 6.1 Write-protect Jumper Location on Controller Board Table 6.1 Write Protect dip switch Settings... -
Page 36: Simulation Dip Switch
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 6.6 Simulation Dip Switch Simulation dip switch A simulation parameter in the AO block is used to aid in system ‘debug’ if the process is not running. A hardware dip switch is provided to enable or disable the simulate parameter. See Section 10.8 for details on setting the simulation dip switch. (See Figure 10.1.) 6.7 Establishing Communications Starting Communications Once the Logix 3400IQ digital positioner is connected to the fieldbus network and powered up, the user is ready to start communicating with the device. The procedure in Table 6.3 outlines the steps to initiate communications with a Logix 3400IQ digital positioner using the NI-FBUS Configurator. Table 6.3 Starting Communications with Logix 3400IQ Digital Positioner Step Action 1. Check that the fieldbus is powered up. Verify that the power supply is on and connected with the proper polarity. See Table 4.2, Logix 3400IQ Digital Positioner Power Requirements for proper voltage levels. 2. Verify that the operator interface is loaded with Start the application on the computer. the NI-FBUS Configurator or other configuration application. -
Page 37: Configuration Tasks
Physical Device Tag The physical device tag is correct. NOTE: The device tag name is not contained in a parameter. It can be set and viewed using the fieldbus device configurator application. 6.9 Configuration Tasks Device Configuration Procedure Overview A typical device configuration consists of the following tasks listed in Table 6.5 using the NI-FBUS Configurator application. Details on using the configurator application are found in the NI-FBUS Configurator user manual supplied with the application software. This procedure assumes that the hardware installation of the Logix 3400IQ digital positioner is complete and the Logix 3400IQ digital positioner is powered up. Table 6.5 Logix 3400IQ Digital Positioner Configuration Task List Task Procedure Result Start the fieldbus process application Scans the fieldbus network and provides a listing of all active fieldbus devices on the network or selected link. Start the fieldbus configurator application Configurator windows are displayed on screen listing the active fieldbus devices. Select a fieldbus device for configuration Change the device and block tags, if Any unassigned tags are given a default tag name desired. - Page 38 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 6.5 Logix 3400IQ Digital Positioner Configuration Task List Task Procedure Result Write configuration to the fieldbus The configuration changes are sent to the appro- network. priate fieldbus devices on the network. Save the device configuration to disk. A copy of the device configuration file is saved on the hard disk of the computer or other disk.
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Page 39: Section 7: Operation
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Operation 7.1 Introduction About This Section This section outlines the tasks for operating and monitoring the Logix 3400IQ digital positioner on a fieldbus network. Refer to the Logix 3400IQ Digital Positioner Start-up Guide, for additional information. 7.2 Operation Tasks Fieldbus Device Operations Positioning – For the most basic operation of the Logix 3400IQ digital positioner the user must write the desired final position value to OUT in the AO block. The AO block MODE_BLK would be set to Manual. The AO block SHED_OPT must be set to anything but uninitialized and the CHANNEL is set to1. The Transducer block MODE_BLK is set to Auto. The Resource block MODE_BLK is set to Auto. Note: A valid schedule must have been downloaded into the device for control from the AO block. Calibration – Set the AO block and Resource block to OOS. Next set the Transducer block MODE_ BLK to Out-of-Service (OOS). Write the desired calibration to CALIBRATE to perform the calibration routine. If performing the actuator pressure transducer calibration, the user will need to first write the supply pressure value into PRESS_CAL in psig. flowserve.com... - Page 40 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07...
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Page 41: Section 8: Configuration Description
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Configuration Description 8.1 Introduction About This Section This section provides information about the construction and contents of the Logix 3400IQ digital positioner Function Block Application Process (FBAP) — the application that defines Logix 3400IQ digital positioner function and operation in the process application.) This information provides some understanding of the elements that make up the configuration of the device application. For More Information on FBAP The FBAP elements are described as they apply to the Logix 3400IQ digital positioner in the following sections. More detailed information can be found in Fieldbus Foundation documents FF-890 and FF-891 Foundation Specification Function Block Application Process (Parts 1 and 2). 8.2 Function Block Application Process Introduction The FBAP comprises a set of elementary functions which are modeled as function blocks. Function blocks provide a general structure for defining different types of device functions (such as analog inputs, analog outputs and PID control). The FBAP also contains other objects that provide other device functions, such as furnishing alarm information, historical data and links to other blocks for transferring data. FBAP Elements The key elements of the FBAP are: • Logix block objects and their parameters (and consist of the following block types) • Resource block •... -
Page 42: Block Description
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Device Objects Link objects allow the transfer of process data from one block to another. View, Alert and Trend objects handle function block parameters for operator interface of views, alarms and events, and historical data. A brief description of these objects is presented in the following sections. 8.3 Block Description Block Objects Blocks are elements that make up the FBAP. The blocks contain data (block objects and parameters) that define the application, such as the inputs and outputs, signal processing and connections to other applications. The Logix 3400IQ digital positioner application contains the following block objects: • Resource block • Transducer block • Analog Output (AO) function block • Proportional Integral Derivative (PID) controller function block Table 8.1 briefly describes the operation of these blocks. Table 8.1 Function Block Application Process Elements Block Type Function Resource Contains data which describes the hardware (physical) characteristics of the device. The resource block does not perform any action, but contains... -
Page 43: Table 8.2 Block Parameter List Column Description
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Block Descriptions Each block contains parameters that are standard Fieldbus Foundation-defined parameters. In other words, the parameters are pre-defined as part of the FF protocol for all fieldbus devices. Additionally, parameters exist which are defined by Flowserve and are specific to the Valtek Logix 3400IQ digital positioner. The following block descriptions list the predefined FF parameters included as part of the block as well as the Flowserve-defined parameters. A complete description for the FF parameters is provided in the Fieldbus Foundation document FF-891, Foundation Specification Function Block Application Process Part 2. The Flowserve parameter descriptions are included here as part of the block descriptions. Block Parameter Column Descriptions Tables on the following pages list all of the block parameters contained in each of the block objects. Table 8.2 explains the column headings for the parameter listings. Table 8.2 Block Parameter List Column Description Column Name Description Index A number that corresponds to the sequence of the parameter in the block parameter segment of the object dictionary. See Object Dictionary, Section 8.16. Name The mnemonic character designation for the parameter. -
Page 44: Resource Block
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 8.4 Resource Block Resource Block Function The resource block contains data and parameters related to overall operation of the device and the FBAP. Parameters that describe the hardware specific characteristics of the device and support application download operations make up the resource block. Resource Block Parameters Table 8.3 lists the FF and Flowserve-defined parameters and their default values contained in the resource block. Table 8.3 Resource Block Parameters Index Name Data Type/Structure Store Default Value ST_REV Unsigned 16 TAG_DESC Octet string all blanks STRATEGY Unsigned16 ALERT_KEY Unsigned8 MODE_BLK Mode... -
Page 45: Table 8.3 Resource Block Parameters
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 8.3 Resource Block Parameters Index Name Data Type/Structure Store Default Value UPDATE_EVT Event - update BLOCK_ALM Alarm - discrete ALARM_SUM Alarm - summary ACK_OPTION Bit string WRITE_PRI Unsigned8 WRITE_ALM Alarm - discrete Valtek Device Products Parameters DL_CMD1 Unsigned8 DL_CMD2 Unsigned8... -
Page 46: Transducer Block
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 8.5 Transducer Block Transducer Block Function The transducer block de-couples (or insulates) function blocks from local I/O devices, such as sensors or actuators. In the Logix 3400IQ digital positioner, the transducer block takes the position from the analog output block and sends it, along with other parameters, to the positioner subsystem. Transducer Block Parameters Table 8.5 lists the FF and Valtek product-defined parameters and their default values in the transducer block. Table 8.5 Transducer Block Parameters Fieldbus Parameter Name Fieldbus Storage Read/ Write Access Notes, Default dex Datatype Type Values ST_REV Unsigned16 FF Parameter, 0 TAG_DESC Octet String... - Page 47 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 8.5 Transducer Block Parameters Fieldbus Parameter Name Fieldbus Storage Read/ Write Access Notes, Default dex Datatype Type Values GAIN_MULT float R/W* Std 0,05 IGAIN Integer16 R/W* Std IL_OFFSET float R/W* Diag 55, Activate Test Mode STATUS_FLAGS Bit String...
- Page 48 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 8.5 Transducer Block Parameters Fieldbus Parameter Name Fieldbus Storage Read/ Write Access Notes, Default dex Datatype Type Values HALL_NULL Unsigned16 R/W* Diag HALL_DOWN Unsigned16 R/W* Diag HALL_UP Unsigned16 R/W* Diag POSALERT_HIGH float R/W Info-2 POSALERT_LOW...
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Page 49: Figure 8.2 Transducer Block Diagram
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 8.5 Transducer Block Parameters Fieldbus Parameter Name Fieldbus Storage Read/ Write Access Notes, Default dex Datatype Type Values CAL_FULLSCALE UINT 16 w/ status AUTO_TUNE_MULT float w/ status NVRAM_WRITE_CYCLES Unsigned 32 GENERIC_PARM_NUM DS-66 Honeywell sts: type val: Logix Var GENERIC_PARM_VAL Unsigned32 R/W Honeywell... -
Page 50: Parameter Definitions
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 8.6 Transducer Block Parameter Descriptions Parameter Default Value Function FINAL_VALUE_CUTOFF_HI 110% This will saturate the actuator in an open position if FINAL_VALUE becomes greater than the cutoff value. FINAL_VALUE_CUTOFF_LO This will saturate the actuator in a close position if FINAL_VALUE becomes less than the cutoff value. This is the same has the Minimum Position Cutoff feature of the Logix 1200 digital positioner. The new terminology matches FF terminology FINAL_POSITION_VALUE Dynamic Actual stem position in percent of stroke FINAL_VALUE_RANGE 110% to -10% The high and low range limit values, the engineering units code and the number of digits to the right of the decimal point to be used to display the final value. DAC_PERCENT Dynamic DAC output in percent CONTROL_FLAGS Used to tell positioner type of actuator and characterization to use. - Page 51 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 • Quick Opening Curve: The Logix 3400IQ digital positioner comes with a default quick opening curve. If this response is desired, check the Quick Opening Curve and Custom Characterization Active boxes • Equal Percent Curve: The Logix 3400IQ digital positioner comes with a default equal percent curve. If this response is desired, check the Equal Percent Curve and Custom Characterization Active boxes. • Positioner Model: This parameter is automatically set at power-up. It tells the positioner if it is an advanced (pressure sensors) model or standard (no pressure sensors). If the user wishes to over-ride the Auto Model Detect feature consult the factory. • ActuatorStyle: Check this box only if the positioner is mounted on a rotary type actuator. • Custom Characterization Active: Check this box the FINAL_VALUE parameter is to be character- ized. If the Quick Opening or Equal Percent box is also checked the positioner will use a factory defined curve. If only Custom Characterization Active is checked, a user-defined curve will be used. Note that when this box is checked the curve can not be changed. If the user wishes to use a different curve, or edit the custom curve, this box must be unchecked. • Air Action: Check this box only if the actuator is tubed to be Air-to-Close (ATC). After configuring CONTROL_FLAGS, click the write button to apply the values. GAIN_UPPER The Logix 3400IQ digital positioner uses a special gain algorithm. The proportional gain increases with a decrease in error. This allows for maximum resolution and speed. GAIN_UPPER...
- Page 52 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 CYCLE_COUNTER This parameter counts the number of cycles that have occurred. CYCLE_DEADBAND In order for a cycle to be counted it must be greater than the value in this field. CYCLE_LIMIT If CYCLE_COUNTER exceeds this value, the LED lights will start to blink Green, Green, Red, Green and a warning will be generated in TRAVEL_FLAGS. TRAVEL_ENG Total distance the valve stem has traveled. TRAVEL_DEADBAND Amount in percent of stroke the valve must move in order for the movement to be added to TRAVEL_ENG. TRAVEL_ALERT If TRAVEL_ENG exceeds this value, the LED lights will start to blink Green, Green, Red, Yellow and a warning will be generated in TRAVEL_FLAGS. STROKE_ENG Stoke length of valve. This value is used to calculate TRAVEL_ENG. TRAVEL_UNITS Units of measure used to calculate TRAVEL_ENG. PRESS_UNITS Units of measure that pressure sensor readings are expressed in. TEMP_UNITS Units of measure that temperature is expressed in. FAIL_MODE Should a loss of communications occur between the fieldbus card and positioner card this parameter sets the fail mode of the valve. Nothing selected will cause the positioner to hold the last known command should a loss of communications occurs. STROKE_TIME_OPEN: Allows the user to limit the stroking speed of the positioner. Input the number of seconds for the desired opening stroke speed. Disable this feature by writing 0 to the variable. STROKE_TIME_CLOSE: Allows the user to limit the stroking speed of the positioner. Input the number of seconds for the desired closing stroke speed. Disable this feature by writing 0 to the variable.
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Page 53: Analog Output Function Block
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 minimum 10,000,000 write cycle endurance. Even though this is a very high number that would typically never be reached during the operational life of the device, a misbehaving host configura- tion routing could drive up the number or write cycles very quickly, and should be corrected as all devices in the configuration will be adversely affected by this continuous download. Signatures See Section 10.13, Initiating a Valve Signature for more details on using the signature acquisition functions of the Logix 3400IQ digital positioner. Custom Characterization See Section 10.11, Stroke Characterization for more details on using the custom characterization features of the Logix 3400IQ digital positioner. 8.6 Analog Output Function Block AO Block Description The Analog Output function block serves as the external interface for the transducer function block. The value of SP is used to produce the OUT value which is then sent to the transducer block to specify the valve position. PV reflects the actual valve position reported by the transducer block. The AO function block operates on the output value from a control block [such as PID] and performs the following primary functions (most can be user configured): • Set-point source selection limiting • Units conversion • Fault state action • Position read back • Alarming • Mode control •... -
Page 54: Table 8.7 Ao Function Block Parameter List
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Fail-safe Handling The fail-safe parameters determine the response of an output block to the following conditions. FSTATE_TIME is the number of seconds without communication or with Initiate Fail Safe at the CAS_IN status, required to put this block into the fail safe state. The FAULT_STATE parameter of the resource block may also put this block into the fail safe state. The Failsafe Type I/O option determines whether the action is simply to hold, or to move to FSTATE_VAL. The Target to Manual if IFS I/O option may be used to latch the fail safe state when IFS appears in the CAS_IN status. This will cause a fail-safe block alarm. After the cause of the IFS status is removed, the target mode may be returned manually to CAS mode when it is safe to do so. AO Block Parameter List Table 8.7 lists the block parameters and default values for the AO function block. Table 8.7 AO Function Block Parameter List Block Name Store Data Type Valid Write Restrictions Default Value... -
Page 55: Figure 8.3 Ao Function Block Diagram
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 8.7 AO Function Block Parameter List Block Name Store Data Type Valid Write Restrictions Default Value Index (Units) Range Type READBACK_ ANALOG (PV) Read Only BLOCK_TEST* Array of Read Only All zeros Unsigned8 * Extension parameter AO Block Diagram Figure 8.3 is a block diagram showing the key components of the AO function block. - Page 56 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Clearing Block Configuration Errors Block configuration errors prevent the block from leaving OOS mode. The parameter BLOCK_ERR will show whether a block configuration error is present. Table 10.7 is a list of parameters that can cause the status of CONFIGURATION ERROR to be set in the AO BLOCK_ERR parameter. NOTE: CONFIGURATION ERROR can only be cleared if the function block is being executed. One way of determining block execution is by performing a series two or three reads of the BLOCK_TEST parameter and confirming that the first byte of the parameter is incrementing. This will work if the execute rate is fast relative to the speed of reading BLOCK_TEST. A very slowly executing block may not appear to execute because block parameters are updated only when the block executes. Parameter Initial Value Valid Range Corrective action CHANNEL Initial value is a configu- ration error. Set value in valid range. SHED_OPT 1-8 (see Shed Options in Initial value is a configu- the FF specs.) ration error. Set value in valid range. SP_HI_LIM 100 0 PV_SCALE +/- 10% Verify that SP_HI_LIM >...
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Page 57: Pid Function Block
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 8.7 PID Function Block PID Block Description The PID function block provides a choice of selecting either a standard PID control equation (Ideal) or a robust PID defined in Table 8.9 on page 59. PID Block Parameter List Table 8.8 lists the block parameters and default values for the PID function block. Table 8.8 PID Control Function Block Parameters Index Name Store Type Data Type Valid Range Write Default Value (Units) Restrictions ST_REV*... - Page 58 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 8.8 PID Control Function Block Parameters Index Name Store Type Data Type Valid Range Write Default Value (Units) Restrictions BAL_TIME Float (seconds) RATE Float (seconds) (32 • Ts) - 7500 BKCAL_IN ANALOG (PV) OUT_HI_LIM S Float (OUT) OUT_SCALE,...
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Page 59: Table 8.9 Honeywell Pid Parameters
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 8.8 PID Control Function Block Parameters Index Name Store Type Data Type Valid Range Write Default Value (Units) Restrictions LO_LO_ALM D ALARM_ FLOAT DV_HI_ALM ALARM_ FLOAT DV_LO_ALM D ALARM_ FLOAT 66†... -
Page 60: Figure 8.4 Pid Control Block
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 8.9 Honeywell PID Parameters Parameter Name Description/Parameter Contents ERROR_ABS Absolute value of the difference between PV and working set-point. (Read- only parameter.) WSP Working set-point. This is the set-point value after absolute and rate limits have been applied. Deviation alarms are computed on this value. (Read- only parameter.) BLOCK_TEST An internal Honeywell test parameter. PID Block Diagram Figure 8.4 is a block diagram showing the key components of the PID control function block. FF_VAL BKCAL_IN ROUT_IN Bypass Feed Forward BYPASS FF_SCALE FF_GAIN Output... - Page 61 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 3. RATE is the tuning constant of the Derivative term. RATE is usually modified by a lag, which is set at some fixed ratio higher than the rate time to create a rate gain. No lag occurs with the rate in this implementation. 4. OUT_LAG is the fourth tuning constant used in the robust PID, it adds roll off to the output response. The action is similar to PID with rate gain. PID Ideal and PID Robust The ideal equation is a parallel or non-interacting implementation of PID control using three tuning constants. It automatically fixes OUT_LAG to 16 times the RATE time constant. This produces response characteristics equivalent to the algorithms used in TPS products. The robust equation is the same parallel implementation of ideal PID control but allows the engineer to set the OUT_LAG and effectively change the rate gain. ALGO_TYPE is a configuration parameter that contains one of three selected algorithm types, A, B, or Where: • A - RATE, GAIN and RESET all act on the error between set point and measured variable. • B - RATE acts on the measured variable only, GAIN and RESET use the error. • C - RATE and GAIN act on the measured variable only, and RESET uses the error. PID Tuning Parameters Table 8.10 lists the valid ranges for the tuning parameters for the PID block. Note that OUT_LAG parameter is cannot be configured when ideal PID is selected (PID_FORM = 1) and can be configured when robust PID is selected (PID_FORM = 2). The values given for these tuning parameters are valid under the following conditions: •...
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Page 62: Block Parameter Summary
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 8.10 PID Tuning Parameter Values Initial Minimum Maximum Parameter Comment Value Value Value PV_FTIME Units: seconds. GAIN .004 GAIN_NLIN .004 RATE (sec.) 32 • Ts 7500 The value of ZERO is permitted to turn off rate action. RESET (sec.) +INF 2 • Ts 7500 The value of +INF is permitted to turn off reset action. (Some versions of NI-FBUS Configurator program cannot set +/- INF) OUT_LAG... - Page 63 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 8.11 Table Description for Block Parameter Summary Column Title Attribute Meaning Use/Model Use and Model Reference (The letter for The manner in which the parameter will participate in use is separated by a slash from the model name.) inter-device communications. Use is defined as: I - Function block Input. The input may be connected to a function block output or used as a constant. O - Function block Output. An output may be referenced by other function block inputs. C - Parameter value Contained in the block, available for interface (operation, diagnostic) and/or configuration. Model is: The name of the parameter. In this case, the attribute indicates that it is a contained parameter and may not be referenced by link objects for use as an input to function blocks. Store Indicates the type of memory where the parameter is stored: S - Static. Writing to the parameter changes the static...
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Page 64: Table 8.12 Resource Block Parameter Summary
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Parameter Summary A summary of the Fieldbus Foundation-defined parameters can be found in FF-890 and FF-891 Foundation Specification Function Block Application Process Parts 1 and 2. Table 8.12 Resource Block Parameter Summary Parameter Obj. Data Type Use/Model Store Size Valid Initial Perm. Mode Other Range Check Mnemonic Type Range Value Units DL_CMD1 Unsigned8 C/Contained... -
Page 65: Table 8.13 Transducer Block Parameter Summary
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 8.13 Transducer Block Parameter Summary Parameter Obj Type Data Type Use/Model Store Size Valid Range Initial Value Units Perm Mode Other Range Mnemonic Check VALVE_MODEL_NO S Visible C/Contained NULL String VALVE_SN... - Page 66 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 8.13 Transducer Block Parameter Summary Parameter Obj Type Data Type Use/Model Store Size Valid Range Initial Value Units Perm Mode Other Range Mnemonic Check CURVEX A[21] float C/Contained -10 to O/S Note 3...
- Page 67 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 8.13 Transducer Block Parameter Summary Parameter Obj Type Data Type Use/Model Store Size Valid Range Initial Value Units Perm Mode Other Range Mnemonic Check FB_SPAN Integer16 C/Contained 1 – 4094 O/S Note 1,3 FB_SCOUNT...
- Page 68 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 8.13 Transducer Block Parameter Summary Parameter Obj Type Data Type Use/Model Store Size Valid Range Initial Value Units Perm Mode Other Range Mnemonic Check VALVE_TRIMTYPE Unsigned8 C/Contained Enum Note 5 Note 3 VALVE_TRIMNO...
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Page 69: Table 8.14 Analog Output Function Block Parameter Summary
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Notes for Transducer Blocks, all releases: 1. Diagnostic Parameter. This parameter is only accessible if TEST_MODE bit 7 ‘Enable Diagnostic Scan List’ is set. 2. DAC_VALUE can only be written if TEST_MODE bit 7 AND bit 0 ‘Write to DAC_Value’ are set. 3. Parameter may not be written if SIG_FLAGS bit 0 ‘BEGIN_SIG’ is set. (The Signature Analysis program is running.) 4. 0x00 if the positioner is a standard model. Advanced Model if the positioner is an advanced type (pressure sensors). This is determined from hardware settings at start-up 5. This enumeration shows ‘Uninitialized’ when value is 0. Table 8.14 Analog Output Function Block Parameter Summary Parameter Data Type Use/Model Store... -
Page 70: Table 8.16 Link Objects Defined For Logix 3400Iq Digital Positioner
Logix 3400IQ Digital Positioner Link Objects Link objects are used for alarms and events, function block linking and trending. In the Logix 3400IQ digital positioner links objects are available for: • The PID block (6 input parameters) • The PID and AO blocks (4 output parameters) • Every alert object • Every trend object Table 8.16 lists the link objects defined in the Logix 3400IQ digital positioner Table 8.16 Link Objects Defined for Logix 3400IQ Digital Positioner Link Object for Parameter or Number of Objects Input parameters PID function block: BKCAL_IN CAS_IN FF_VAL TRK_IN_D TRK_VAL Output parameters AO function block: OUT... -
Page 71: View Objects
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 2. View2 - used to display static operation data 3. View3 - used to display all dynamic data 4. View4 - used to display other static data. Logix 3400IQ Digital Positioner View Objects In the Logix 3400IQ digital positioner, four view objects have been defined for each of the four blocks - for a total of 16 view objects. Some parameters are accessible in all four views, while others are available in one view. Table 8.17 Resource Block View List Index Name View1 View2 View3 View4 ST_REV TAG_DESC STRATEGY ALERT_KEY MODE_BLK BLOCK_ERR RS_STATE TEST_RW... -
Page 72: Table 8.18 Transducer View Block List
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 8.17 Resource Block View List Index Name View1 View2 View3 View4 BLOCK_ALM ALARM_SUM ACK_OPTION WRITE_PRI WRITE_ALM Manufacturer Specific Parameters DL_CMD1 DL_CMD2 DL_APPSTATE DL_SIZE DL_CHECKSUM REVISION_ ARRAY BLOCK_TEST ERROR_DETAIL Total Table 8.18 Transducer View Block List... - Page 73 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 8.18 Transducer View Block List Index Parameter Name Views FINAL_ POSITION_VALUE ACT_FAIL_ ACTION ACT_MAN_ID ACT_MODEL_ ACT_SN VALVE_MAN_ID VALVE_MODEL_ VALVE_SN VALVE_TYPE XD_CAL_LOC XD_CAL_DATE XD_CAL_WHO Manufacturer's Specific Parameters DAC_PERCENT CONTROL_ FLAGS GAIN_UPPER GAIN_LOWER GAIN_MULT...
- Page 74 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 8.18 Transducer View Block List Index Parameter Name Views TRAVEL_ DEADBAND TRAVEL_ALERT STROKE_ENG TRAVEL_UNITS CURVEX CURVEY TRAVEL_FLAGS TEMPERATURE PORT_1_ PRESSURE PORT_2_ PRESSURE SUPPLY_ PRESSURE VOLTAGE_ REFERENCE HALL_SENSOR DAC_CHECK MOD_CURRENT IL_CHK INTERNAL_ FLAGS...
- Page 75 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 8.18 Transducer View Block List Index Parameter Name Views BP_SPAN BP_FULL_SCALE FB_ZERO FB_SPAN FB_SCOUNT HALL_NULL HALL_DOWN HALL_UP POSALERT_HIGH POSALERT_LOW POSDEV_ DEADBAND POSDEV_TIME SIG_START SIG_STOP RAMP_RATE STEP_TIME SIG_FLAGS SAMPLE_TIME SIG_COUNTER INTAD_RAW1 INTAD_RAWTP INTAD_RAWBP...
- Page 76 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 8.18 Transducer View Block List Index Parameter Name Views OUTLET_PRESS VALVE_FLAGS RATED_TRAV ACT_TYPE ACT_SIZE SPRING_TYPE SPOOL_ID PO_DATE INSTALL_DATE LOAD_EE_ DEFAULTS ENG_RELEASE_ MISC_FLAGS SIG_INDEX SIG_DATA MFG_PHONE PUR_ORDER_ STROKE_TIME_ OPEN STROKE_TIME_ CLOSE CAL_FULLSCALE AUTO_TUNE_...
- Page 77 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 8.19 AO Block View Table Index Name View1 View2 View3 View4 ST_REV TAG_DESC STRATEGY ALERT_KEY MODE_BLK BLOCK_ERR OUT SIMULATE PV_SCALE XD_SCALE GRANT_DENY IO_OPTS STATUS_OPTS READBACK CAS_IN SP_RATE_DN SP_RATE_UP SP_HI_LIM SP_LO_LIM CHANNEL...
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Page 78: Table 8.19 Ao Block View Table
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 8.20 PID Block View Table Index Name View1 View2 View3 View4 OUT PV_SCALE OUT_SCALE GRANT_DENY CONTROL_ OPTS STATUS_OPTS PV_FTIME BYPASS CAS_IN SP_RATE_DN SP_RATE_UP SP_HI_LIM SP_LO_LIM GAIN RESET BAL_TIME RATE BKCAL_IN OUT_HI_LIM... - Page 79 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 8.20 PID Block View Table Index Name View1 View2 View3 View4 HI_PRI HI_LIM LO_PRI LO_LIM LO_LO_PRI LO_LO_LIM DV_HI_PRI DV_HI_LIM DV_LO_PRI DV_LO_LIM HI_HI_ALM HI_ALM LO_ALM LO_LO_ALM DV_HI_ALM DV_LO_ALM Manufacturer Specific Parameters PID_FORM...
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Page 80: Alert Objects
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Logix 3400IQ Digital Positioner Alert Objects Three alert objects are defined in the Logix 3400IQ digital positioner for event and alarm reporting. • 1 for events • 1 for discrete alarms • 1 for analog alarms 8.12 Alarm and Event Reporting Fieldbus Alarms, Events and Alert Objects Alarms are generated when a block leaves or returns from a particular state. Events are instantaneous occurrences such as the change of a parameter. Alarms and event messages are communicated to operator interfaces and other devices using alert objects. Fieldbus Alarm Messages Alarm messages are usually transparent to the user. A host system typically receives these messages and presents them to the user. Acknowledgment of alarms by the operator may be necessary to satisfy operation requirements. Event Messages •... - Page 81 EEPROM checksum Alarm Configuration data is stored in EEPROM. When power is lost, configuration information is retrieved from EEPROM and operation resumes. A check is done by the micro-controller after a power-up to make sure data saved in EEPROM has not been corrupted. The checksum is a number that is calculated based on configuration data. It is also saved in EEPROM every time data is stored. If after a power-up, this number does not match the data in memory, an EEPROM checksum alarm is generated and the red LED will blink. If this occurs, try powering the Logix 3400IQ digital positioner off and then back on. If the error does not clear, try saving configura- tion data again using FB Configurator. If previous configuration has not been saved, must be reset and reconfigure. If these steps still do not clear the error, the main PCB assembly must be replaced. Refer to the Logix Series 3400IQ Digital Positioner IOM for spare parts kit numbers. Pressure Alarms Pressure alarms are only available on models with advanced diagnostics (Logix 3400IQ digital positioner). Advanced diagnostic models add top and bottom pressure sensors. These sensor readings and alarms are only accessible from the communicator when the configuration has been set to Advanced. Loss of Pressure The loss of pressure alarm becomes active when the supply pressure is near the minimum positioner operating pressure of 30 psig. The LEDs will blink Red, Green Yellow, Red. This alarm is meant to alert the user to low supply pressure as well as complete loss of pressure. flowserve.com...
- Page 82 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Top Sensor, Bottom Sensor Each sensor is checked during actuator calibration. If a calibration reading appears to be out of range, the appropriate alarm will become active. The pressure sensors are located on the collector board assembly. Internal Positioner Alerts MPC (FINAL_VALUE_CUTOFF_HI, FINAL_VALUE_CUTOFF_LO) The MPC or tight shutoff feature of the Logix 3400IQ digital positioner allows the user to control the level at which the command signal causes full actuator saturation in the closed (or open) position. This feature can be used to guarantee actuator saturation in the closed (or open) position or prevent throttling around the seat at small command signal levels. To enable, use configuration to apply the desired MPC threshold. Note: The positioner automatically adds a 1 percent hysteresis value to the MPC setting to prevent jumping in and out of saturation when the command is close to the MPC setting. Question: I set the FINAL_VALUE_CUTOFF_LO at 5 percent. How will the positioner operate? Answer: Assume that the present command signal is at 50 percent. If the command signal is decreased, the positioner will follow the command until it reaches 5 percent. At 5 percent, the spool will be driven in order to provide full actuator saturation. The positioner will maintain full satura- tion below 5 percent command signal. Now, as the command increases, the positioner will remain saturated until the command reaches 6 percent (remember the 1 percent hysteresis value added by the positioner). At this point, the stem position will follow the command signal. Question: I have FINAL_VALUE_CUTOFF_LO set to 3 percent but the valve will not go below 10 percent? Answer: Is a lower soft limit enabled? The lower soft limit must be less than or equal to 0 percent in order for the MPC to become active. If soft stops are active(SOFTSTOP_LOW>30, SOFTSTOP_ HIGH<100) FINAL_VALUE_HI or _LO is disabled. Position Alerts Position alerts notify the user that the valve has traveled past a configured limit. The default settings...
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Page 83: Trend Objects
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 80 percent (present position) – 50 percent (previous) = 30 percent movement x 4-inch stroke= 1.2 inches So, 1.2 inches is added to the travel accumulator. New dead band thresholds of 100 percent (80 percent present position plus 20 percent dead band) and 60 percent (80 percent present position minus 20 percent dead band) are calculated. This process continues as the stem position moves throughout its stroke range. Cycle Counter The cycle counter is another means of monitoring valve travel. Unlike the travel accumulator, the stem position must do two things to count as a cycle: exceed the cycle counter dead band and change direction. A cycle counter limit can also be written into the positioner. If this limit is exceeded, the LEDs will blink Green, Green, Yellow Green.. Position Deviation If the stem position differs fromthe control command by a certain amount for a given length of time, the LED‘s will blink Red, Green, Red, Red to signify excess deviation. The trip point and settling times are set in the transducer block. 8.13 Trend Objects Description Trend objects support the management and control of function blocks by providing access to history information. Trend objects provide for short-term history data to be collected and stored within a resource. The collected data may be input and output parameters, and status information from selected function blocks. Trend objects are available anytime for reading. A user will not typically view trend objects directly. A host system may receive the data and build displays using the history data. Logix 3400IQ Digital Positioner Trend Objects The Logix 3400IQ digital positioner has one defined trend object. -
Page 84: Domain Objects
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 DD Download The DD for the Logix 3400IQ digital positioner can be downloaded by going to the Software Download section on the Flowserve website at www.flowserve.com. Device Description Contents A typical DD contains information about the device parameters and operation, such as: • Attributes, like coding, name, engineering unit, write protection, how-to-display, etc. • The menu structure for listing parameters, including names of menus and sub-menus. • The relationship of one parameter to others • Information about help text and help procedures • Maintenance, calibration and other necessary operation information. • Methods Wizard to help configure and commission the positioner Standard and Device-specific DD Standard DD descriptions for function blocks and transducer blocks are maintained by the Fieldbus Foundation. These descriptions can be used as part of a field device DD by manufacturers to describe the standard features of their devices. Device-specific descriptions are developed by manufacturers to describe custom features which are unique to that particular device. These two types of DDs (the standard and device-specific) can then be combined to provide a complete DD for the field device. 8.16 Object Dictionary Object Dictionary Description AP objects are described in the Object Dictionary (OD) with each entry describing an individual AP object and its message data. The message data may consist of a number of characteristics defined... -
Page 85: Table 8.21 Block Parameter Index Table
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 8.21 Block Parameter Index Table Index Parameter Index Parameter Index Parameter Index Parameter FEATURE_SEL Index AO Function Block HI_PRI HI_LIM CYCLE_TYPE BLOCK CYCLE_SEL ST_REV LO_PRI LO_LIM MIN_CYCLE_T TAG_DESC PV_SCALE MEMORY_SIZE STRATEGY OUT_SCALE LO_LO_PRI... - Page 86 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Index Parameter Index Parameter Index Parameter Index Parameter TRANSDUCER_DIRECTORY CURVEY 557 RAMP_RATE 601 CAL_FULLSCALE TRANSDUCER_TYPE TRAVEL_FLAGS 558 STEP_TIME 602 AUTO_TUNE_MULT XD_ERROR TEMPERATURE 559 SIG_FLAGS 603 NVRAM_WRITE_CYCLES COLLECTION_DIRECTORY PORT_1_PRESSURE 560 SAMPLE_TIME 604 GENERIC_PARM_NUM...
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Page 87: Management Virtual Field Device
• Provide system application clock time synchronization • Provide scheduling of function blocks Manage automatic device address assignment • • Provide tag search service System Management Information Base (SMIB) The SMIB contains various objects that are associated with system management operation. Table 8.22 shows a listing of the SMIB object dictionary. Groups of objects (along with their starting index number) are included in the SMIB for the Logix 3400IQ digital positioner. The numbers in parenthesis indicate the number of objects. Table 8.22 Logix 3400IQ Digital Positioner SMIB Object Dictionary Dictionary Index Object Header Reserved Directory of Revision Number (1) Number of Directory Objects (1) Total Number of Directory Entries (5) Directory Index of First Composite List Reference (0) Number of Composite List References (0) 258 System Management Agent Starting OD Index Number of System Management Agent Objects (4) 262... -
Page 88: Table 8.23 System Management Supported Features
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 8.23 System Management Supported Features SM_SUPPORT bit Feature Supported? Set physical device tag (agent) Set field device address (agent) Clear address (agent) Identify (agent) Locating function blocks (agent) Set physical device tag (manager) Set field device address (manager) Clear address (manager) Identify (manager) Locating function blocks (manager) FMS server role Application clock synch (time slave) Scheduling function block Application clock synch (time publisher) to 31 Reserved for future use. SM_SUPPORT Bits Any bit (of the object SM_SUPPORT) will be set that corresponds to a supported feature listed in Table 8.23. The resulting value in the object SM_SUPPORT is 1C1F (hex). SM Agent Objects Four SM agent objects are contained in the SMIB object dictionary. One object, SM_SUPPORT, was... -
Page 89: Table 8.25 Sm Sync And Scheduling Objects
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Sync and Scheduling Objects These objects are used by system management to provide application clock synchronization and macro cycle scheduling for the device. Table 8.25 identifies the sync and scheduling objects with their object directory index and default values. Table 8.25 SM Sync and Scheduling Objects Object Description Default Value index CURRENT_TIME The current application clock time. Dynamic LOCAL_TIME_DIFF Used to calculate local time from CUR- RENT_TIME. AP_CLOCK_SYNC_ The interval in seconds between time Set by SM (mgr.) during NTERVAL messages on the link (bus). address assignment TIME_LAST_RCVD The application clock time contained in Dynamic the last clock message. -
Page 90: Network Management
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Virtual Field Device (VFD) List Objects Two objects identify the VFDs in the device: OD Index VFD_REF VFD_TAG 273 ‘MIB’ 274 ‘Resource’ Function Block Scheduling The SMIB contains a schedule, called the function block schedule, that indicates when that device’s function blocks are to be executed. System Management schedules the start of each function block relative to the macro cycle of the device. The macro cycle represents one complete cycle of the function block schedule in a device. The macro cycles of all devices on the link are synchronized so that function block executions and their corresponding data transfers are synchronized in time. Using the configurator software, the device’s function block schedule can be pre-configured. Function Block Scheduling Objects Four scheduling objects are defined in the Logix 3400IQ digital positioner. Table 8.27 lists the func- tion block scheduling objects with their object directory index and default values. Table 8.27 Function Block Scheduling Objects... -
Page 91: Table 8.28 Logix 3400Iq Digital Positioner Nmib Object Dictionary
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Network Management Objects CAUTION: Normally, most of the network management objects appear transparent to the user. In other words, the parameters and objects used for network management are not normally viewed or changed as part of device configuration. The network management objects in the Logix 3400IQ digital positioner FBAP are listed in the following paragraphs, although most, (if not all) of these objects are not directly user-configured. Network Management Information Base (NMIB) The NMIB contains various objects that are associated with network management operation. Table 8.28 lists the NMIB object dictionary. The groups of network management objects (along with their index starting numbers) are included in the NMIB for the Logix 3400IQ digital positioner. The numbers in parenthesis indicate the number of objects. Table 8.28 Logix 3400IQ Digital Positioner NMIB Object Dictionary Dictionary Index Object Header Reserved Directory of Revision Number Number of Directory Objects Total Number of Directory Entries Directory Index of First Composite List Reference Number of Composite List References Stack Management OD Index Number of Objects in Stack Management (1) - Page 92 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 VCR Attributes The attributes for the VCR types (VCR name) defined in the Logix 3400IQ digital positioner device are standard fieldbus attributes. There are 16 available VCR‘s available in the Logix 3400IQ. For detailed descriptions of these attributes, see Unsupported Services The following is a list of services which are not supported (not used) in the Logix 3400IQ digital positioner FBAP: • FB_Action (all function blocks are static) • Put_OD (all ODs are static) • Domain upload • Program invocation • Reception of alert and trend indications • Access protection and check of password • AlertEventConditionMonitoring • Write to variable lists • Create/Modify/Delete variable lists • Read and write access by name • PhysRead, PhysWrite •...
- Page 93 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 CALIBRATE_FLAGS: Each bit within this variable is a flag indicating parameters relevant to calibration. A logic 1 indicates error is active. Description 0=No error 1= Calibration time-out 0= No error 1= Position A/D converter saturated at 0% position 0=no error 1= Position A/D converter saturated at 100% position 0= No error 1= Position A/D converter span error CONTROL_FLAGS: Each bit within this variable is a flag that indicates parameters relevant to position control and calibration. Name Action Air Action 0 = ATO 1 = ATC Characterization Active 0 = Linear stem positioning 1 = Custom characterization stem positioning Actuator Gains 0 = Linear actuator gains used 1 = Rotary actuator gains used Model 0 = Standard positioner model (no pressure sensors) 1 = Advanced positioner model (pressure sensors) Equal-percent Curve 0 = Use custom curve (user may edit) 1 = Use default equal-percent curve...
- Page 94 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 INTERNAL_FLAGS: Each bit within this variable is a flag indicating parameters relevant to the internal operation of the positioner electronics. A logic 1 indicates error is active. Bit Description 0 = No error 1 = 12 bit A/D reference error 0 = No error 1 = 1.23V reference error 0 = No error 1 = 12 bit DAC error 0 = No error 1 = Temperature error 0 = No error 1 = Hall Sensor error 0 = No error 1 = Excessive modulator current* 0 = No error 1 = EEPROM checksum error * Even though excessive modulator current is being reported, modulator current is not actually measured in the Logix 3400IQ. The value that is actually being is measured and reported is that the piezo voltage is out of range. LOAD_EE_DEFAULTS: This variable will load the positioner’s card EEPROM with factory default values. Value Function Reset variables Reset calibration constants MISC_FLAGS: This bit mapped variable is used to enable/disable various features ofthe Logix 3400IQ digital positioner. The user does not view it.
- Page 95 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 PRESS_FLAGS: Each bit within this variable is a flag indicating parameters relevant to the pressure sensors (Advanced model ONLY). A logic 1 indicates error is active. Description 0 = No error 1 = Loss of supply Not used 0 = No error 1 = Output port 1 sensor failure (low pressure reading during calibration) 0 = No error 1 = Output port 2 sensor failure (low pressure reading during calibration) Not used Not used Not used Not used PRESS_UNITS: This is an enumerated byte that indicates the engineering units being utilized for pressure sensor reporting. The embedded code supports units of psig, barg, KPag, and Kg/cm2g. The unit codes are defined as follows: • 6 = psi • 7 = bar • 10 = Kg/cm2 • 12 = Kpa SIG_FLAGS: Byte which will be added to the end of each signature data frame to show progress and end-of-signature. One flag will set STEP or RAMP STATUS_flags STATUS_FLAG: Status flag variable for fieldbus. When a bit is set, the corresponding flag variable is reporting an alarm condition.
- Page 96 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 TEST_MODE: This variable is bit mapped variable that will allow special tests to be done to the positioner. Test DAC control given to PC, write to DAC_value Blink red LED, used for electronics board test. Bits 2 & 3 may not be set when active Blink yellow LED, used for electronics board test. Bits 1 & 3 may not be set when active Blink green LED, used for electronics board test. Bits 1 & 2 may not be set when active Reserved Reserved Reserved Enable diagnostic scan list TRAVEL_FLAGS: Each bit within this variable is a flag indicating errors or alerts related to valve travel. Logic one indicates the flag is active. Description 0 = No alert 1 = Final_Value_Cutoff active (this can be either high or low) 0 = No alert 1 = Lower soft stop active 0 = No alert 1 = Upper soft stop active 0 = No alert 1 = Lower position alert 0 = No alert 1 = upper position alert 0 = No alert 1 = Cycle counter limit exceeded 0 = No alert 1 = Travel accumulator limit exceeded...
- Page 97 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Calibration 9.1 Introduction About This Section This section provides information about calibrating the Logix 3400IQ digital positioner’s sensors. 9.2 Overview About Calibration When re-calibration is required, the Logix 3400IQ digital positioner does not need to be removed from the process and may be calibrated in the field. NOTE: Calibration will cause the valve to fully stroke, so calibration must not be initiated while the valve is on line in the process. CAUTION: The configurator application can be used to perform the calibration procedures. The software application is not a calibrated measurement source. It is a digital diagnostic tool that provides verification of device parameter values. Calibration Process In general, calibration procedures follow these processes: 1. Prepare the device. (Note: The transducer function block must be out-of-service in order to perform any calibration.) 2. Write to CALIBRATE. 3. Observe the positioner performance. The calibration parameter values and calibration commands are written to the device using a fieldbus configuration application, (such as the NI-FBUS Configurator). Alternatively, use the Re-Cal button on the Logix 3400IQ digital positioner to perform the stroke calibration. Confirm that positioner is configured properly, then proceed. 1. Prepare the device and safe the area for the removal of the main housing cover.
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Page 98: Table 9.1 Transducer Block Calibration Parameters
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 3. Press and hold the Re-Cal button for at least five seconds to initiate the stroke calibration. (NOTE: The transducer block must be out-of-service before the Re-Cal button will be active.) If Auto Tune is selected, this will also auto tune the positioner response. 4. Replace cover and return to operation. (Refer to Logix 3400IQ Digital Positioner IOM for more details.) 9.3 Calibration The output position of the Logix 3400IQ digital positioner is calibrated using the transducer block CALIBRATE parameter. The positioner performance must be verified by the operator. Calibration Parameters Table 9.1 lists transducer block parameters and their values used in the calibration procedures. Table 9.1 Transducer Block Calibration Parameters Parameter Description Value - Meaning Comments MODE_BLK The operating mode of Permitted modes: The transducer block must be in the OOS the transducer block mode to perform Logix 3400IQ digital positioner calibration. Auto — Auto (target mode) OOS — Out of Service... - Page 99 This feature is provided to allow stroke calibration being initiated at the positioner. However, the Logix 3400IQ digital positioner Transducer block must be placed in Out-of-Service mode for the button to become active. After completion of the calibration cycle, the block must be returned to normal mode for operation to resume.
- Page 100 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07...
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Page 101: Troubleshooting
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Troubleshooting 10.1 Introduction About This Section This section contains information about identifying device faults and suggested actions to correct them. The approach to troubleshooting is determining the cause of the fault through definition of the symptoms (such as a device not visible on network or not able to write values to parameters). The information is organized the following way: • Device troubleshooting tables list some of the more commonly encountered faults and sugges- tions to check in order to find out where the problem is and correct it. • Positioner status tables define some of the conditions that cause critical or non-critical faults in the transmitter. Critical and non-critical faults are described and suggestions are given on where to find further information. • Device diagnostics briefly explains about some of the background diagnostics that are active in the device during normal operation. Device parameters are described that provide information about hardware and software status within the device. • Block configuration errors summarize conditions within the device which may be caused by configuration errors and suggestions on where to look to correct the errors. • Simulation mode describes how to set up the transmitter to generate a user-defined simulated input. -
Page 102: Table 10.1 Device Troubleshooting A
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 CAUTION: Additional diagnostics may be available through supervisory and control applications that monitor and control fieldbus networks. These diagnostics and messages are dependent upon the capabilities of the application and control system used. Troubleshooting with the NI-FBUS Configuration Tool The diagnostic messages generated by the Logix 3400IQ digital positioner and block parameters can be accessed and evaluated using the NI-FBUS Configurator. Troubleshooting of some Logix 3400IQ digital positioner faults and corrective actions also can be performed using the configurator. Fault Summary Diagnostic messages can be grouped into one of these three categories. 1. Non-critical Failures — Logix 3400IQ digital positioner continues to calculate PV output. 2. Critical Failures — Logix 3400IQ digital positioner drives PV output to fail-safe state. 3. Configuration Errors — Incorrect parameter values may cause the Logix 3400IQ digital positioner to generate a fault. A description of each condition in each category is given in the following tables. The condition is described, a probable cause is stated and a recommended corrective action is given for each fault. 10.3 Device Troubleshooting Device Not Visible on Network If the device is not seen on the fieldbus network, the device may not be powered up or possibly the supervisory or control program is not looking for (or polling) the node address of that device. (See... -
Page 103: Incorrect Or Non-Compatible Tools
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Incorrect or Non-compatible Tools If the user is using non-compatible versions of fieldbus software tools, such as Standard Dictionary or Device Description (DD) files, or if the user is using the incorrect revision level of device firmware, then device objects or some block objects may not be visible or identified by name. (See Table 10.2 for possible causes and recommended actions.) Table 10.2 Device Troubleshooting B Symptom • Device and/or block objects not identified (UNKnown), or, • Parameters are not visible or identified by name, or • Flowserve-defined parameters are not visible. Possible cause Items to check Recommended Action Incorrect standard dictionary, Verify that the standard dictionary, Install the compatible version of device description (DD) or symbols the DD or symbols files are correct standard dictionary and DD for the on host computer for the device. -
Page 104: Table 10.3 Device Troubleshooting C
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 10.3 Device Troubleshooting C Symptom • Device output is not updating. Possible Cause Items to Check Recommended Action Resource block mode is OOS Read MODE_BLOCK. ACTUAL of If necessary, set MODE_BLOCK. Resource block. TARGET to Auto. Resource block is not running. Read the first element of If second element of BLOCK_TEST BLOCK_TEST. Number should be is not zero, write all zeroes to increasing indicating that block is element. running. If block is not running, check the second element of BLOCK_TEST. Check BLOCK_ERR for other See Sub-section 10.7 for details errors. -
Page 105: Device Diagnostics
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 PID block is not running. Read the first element of If second element of BLOCK_TEST BLOCK_TEST. Number should be is not zero, write all zeroes to increasing indicating that block is element. Download valid schedule running. If block is not running, to device. check the second element of BLOCK_TEST. Read BLOCK_ERR. See Sub-section 11.7 for details on BLOCK_ERR. PID block is not initialized. Read parameters: The default values of these BYPASS parameters are configuration SHED_OP errors and they must be set to a valid range. See Clearing Block Configuration Errors, Sub-section 11.9. Read parameters: IN.STATUS should be set to ‘good’ OUT.STA- TUS should be set to ‘good’ 10.4 Device Diagnostics Logix 3400IQ Digital Positioner Memory The Logix 3400IQ digital positioner contains a number of areas of memory. An EEPROM provides a... -
Page 106: Table 10.5 Block_Err Parameter Bit Mapping
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 View the BLOCK_TEST parameter of the block. • If the first element of the parameter (BLOCK_TEST = ) is incrementing, the block is executing and the diagnostics are active. • If the first element value is not increasing, the block is not executing. Table 10.5 BLOCK_ERR Parameter Bit Mapping BLOCK_ERR Bit Value or Message* Description Not used Least Significant Bit (LSB) Block configuration error Invalid parameter value in block. See Clearing Block configuration Errors. Not used Simulate parameter active The SIMULATE parameter is being used as the input to the AO block. This occurs if the simulate jumper is set to Y on the electronics board, and the ENABLE_DISABLE field of the SIMULATE parameter is set to 2. See Sub-section 10.8 also. Not used Not used... -
Page 107: Table 10.6 Error_Detail Parameter Enumeration
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 ERROR_DETAIL Enumeration Table 10.6 lists the enumerated values for the error type element only. The location and sub-type elements have no significant meaning for users. Table 10.6 ERROR_DETAIL Parameter Enumeration ERROR_DETAIL Message No error Control board ROM checksum HC16 boot ROM checksum HC16 application ROM checksum Interprocessor error (startup) Interprocessor error (operation) EEPROM corrupt (background diagnostics) EEPROM driver error EEPROM - fieldbus write Sensor error Internal software error Other Using ERROR_DETAIL for Troubleshooting If a critical error occurs in the resource block, the user should read and record the ERROR_DETAIL value. Then reset the device (write RESTART parameter Processor). Wait 30 seconds after reset and read ERROR_DETAIL again to check if error cleared. 10.5 Block Configuration Errors Configuration Errors Block configuration errors prevent a device block from leaving OOS mode. The BLOCK_ERR... - Page 108 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 3. W rite-locking is active. Resource block 3. R emove write protect jumper (see parameter WRITE_LOCK value is 2. Subsection 6.5) 4. C orresponding block is in the wrong 4. W rite valid mode to MODE_BLK mode. Some parameters can only be parameter of block (OOS or MAN written to in OOS mode only, or in OOS or modes). See Mode Restricted Writes manual modes. to Parameters in Sub-sections 8.6 and 8.7. 5. D ata written to the parameter is out of the 5. W rite valid range values to valid range for that parameter. parameter. 6. S ubindex used is invalid for that 6. Enter valid subindex for parameter.
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Page 109: Table 10.8 Ao Block Parameters
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 10.6 Clearing Block Configuration Errors Clearing Block Configuration Errors Table 10.8 and Table 10.9 list the parameters in the AO and PID blocks which can cause the status bit of block configuration error to be set in their respective BLOCK_ERR parameters. The tables also provide the initial values and the valid range for the parameters. NOTE: Block configuration errors can only be cleared if the function block is being executed (running). One way of determining block execution is by doing a series of two or three reads of the BLOCK_TEST parameter and confirming that the first byte of the parameter is incrementing. This will work if the execute rate is fast relative to the speed of reading BLOCK_TEST. A very slowly executing block may not appear to execute because block parameters are updated only when the block executes. Table 10.8 AO Block Parameters Parameter Initial Value Valid Range Corrective Action ALERT_KEY non-zero Initial value is a configuration error. Set value to non-zero number. SIMULATE... -
Page 110: Table 10.9 Pid Function Block Parameters
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 10.9 PID Function Block Parameters Parameter Initial Value Valid Range Corrective Action BYPASS 1:OFF, 2:ON Initial value is a configuration error. Set value in valid range. SHED_OPT 1-8 (see Shed Initial value is a configuration error. Options in the FF Set value in valid range. specs.) HI_HI_LIM +INF PV_SCALE, +INF Values must be set in rank order (e.g. LO_LIM > LO_LO_LIM but < HI_LIM etc.) HI_LIM +INF LO_LIM -INF PV_SCALE, -INF Values must be set in rank order. -
Page 111: Figure 10.1 Simulation Dip Switch Location On Main Pcb Cover
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 DIP Switch Block FF Simulate Dip Switch Figure 10.1 Simulation Dip Switch Location on the PCB Cover Table 10.10 Setting The Simulation Dip Switch Set the Dip Switch to: Enable read and write access to the Off position on the dip device’s configuration. (Factory-set switch. default) Enable read only access to device’s On position on the dip configuration. (Write-protect) -
Page 112: Table 10.12 Symptom Chart
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 • TRANSDUCER_VALUE - Contains the value read from the transducer position source. • TRANSDUCER_STATUS - Contains the status read from the transducer position source. • ENABLE_DISABLE - Enables simulation of the SIMULATE_VALUE and SIMULATE_STATUS when selected. Enabling Simulation Before the ENABLE_DISABLE in the SIMULATE parameter may be selected, the hardware simulation must be enabled for the device. To enable simulation in the device, set the SIMULATE dip switch to the “On” position, select RESTART_PROCESSOR in the Resource block RESTART parameter. To ensure that simulate is permitted in the device, go to the Resource Block and read the BLOCK_ ERR parameter. It should indicate Simulation Enabled. Simulating the Transducer To simulate the READBACK parameter, set the SIMULATE parameter as follows: 1. Set ENABLE_DISABLE to ACTIVE and write the parameter. 2. Set SIMULATE_VALUE and SIMULATE_STATUS as desired and write the parameter. 3. Read the READBACK parameter. This should reflect the value and status which was set in the SIMULATE parameter. NOTE: The TRANSDUCER_VALUE and TRANSDUCER_STATUS will continue to be updated by the transducer source as described in the next section. Transducer Position Source Selection The source of the TRANSDUCER_VALUE and TRANSDUCER_STATUS in the SIMULATE param- eter is determined by the FEATURE_SEL parameter in the Resource Block. If FEATURE_SEL... - Page 113 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 10.12 Symptom Chart Failure or Problem Probable Cause(s) Refer to Section(s) Valve moves in wrong direction with no 1. May be tubed for wrong air action. 1. See Air Action in Section 6. change in input signal 2. Spool stuck. 2. See Spool Valve instructions in Logix 3400IQ Digital Positioner IOM. Unit does not respond to fieldbus 1. Unit is not configured correctly. 1. See Theory of Operation on page 3. command. 2. Error occurred during calibration. 2. See Calibration in Section 9. Calibration LEDs blink YRYR or YRRY after a 1. Configured for linear on a rotary 1. See Re-Cal button Section 9. Re-Cal operation. Valve stays in fully mounting. open or closed position. 2. Feedback linkage out of range. LEDs blink YRRR after a Re-Cal, or 1. Valve didn’t fully stroke during 1. See Re-Cal button Section 9. calibration operation.
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Page 114: Figure 10.2 Gain Effect Diagram
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 10.12 Symptom Chart Failure or Problem Probable Cause(s) Refer to Section(s) LEDs LED four blink sequence begins with 1. Any sequence beginning with a green 1. Go to Section 7.9 in the Logix 3400IQ green light is a normal operating mode . IOM LED four blink sequence begins with 1. Any sequence starting with a yellow 1. Go to Section 7.9 in the Logix 3400IQ yellow light indicates that the unit is in a special IOM calibration or test mode, or that there was a calibration problem. LED four blink sequence begins with 1. Any sequence starting with a red 1. Go to Section 7.9 in the Logix light indicates that there is an operatio- 3400IQ IOM nal problem with the unit Advanced Features Will not display pressure readings. 1. Is configuration set to advanced? 1. See Standard vs. Advanced Dia-... -
Page 115: Table 10.13 Logix 3400Iq Digital Positioner Factory Tuning Sets
Module Assembly is necessary, or the software reset has been performed, it may be necessary to adjust this value. The method below should be used to adjust inner-loop offset. Or simply perform a new stroke calibration. From the fieldbus configurator, • Send a 50 percent command. • Set integral to zero. • Locate the DAC_PERCENT • Write this percentage value to IL_OFFSET. • Write original value to Integral Table 10.13 Logix 3400IQ Digital Positioner Factory Tuning Sets Brand Tuning Set GAIN_LOWER GAIN_UPPER GAIN_MULT lgain Comparable Actuator Valtek VFactory_A 1.00 2.00 0.05 10.0 25 sq. in. - Page 116 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Trooper 49 3.00 4.00 0.05 10.0 77.5 sq. in. Automax 0.30 0.50 0.05 10.0 3 to 5 sq. in. 1.00 1.50 0.05 10.0 9 to 12 sq. in. 1.30 2.00 0.05 10.0 16 to 19 sq. in. 2.00 2.50 0.05 10.0 27 to 37 sq. in. 2.50 3.60 0.05 10.0 48 to 75 sq. in.
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Page 117: Table 10.14 Logix 3400Iq Digital Positioner Characteristic Curves
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Answer: The model with advanced diagnostics adds top and bottom sensors. This allows for the collection of data for more diagnostic calculations, such as loss of pressure, friction, advanced signatures, and troubleshooting. Question: Can I upgrade from a standard to an advanced model? Answer: Yes. Advanced pressure board assembly can be purchased (see IOM). Simply install the advanced pressure board. All connectors on the pressure board are keyed and unique for easy cable re-connection. Using FB configurator, perform an actuator pressure calibration. Temperature and Pressure Units: The desired temperature and pressure units can be set during configuration. Once set, all readings will be displayed in the desired units. Parameters TEMP_UNITS and PRESS_UNITS in the transducer block. Stroke Length: Stroke length is used by the travel accumulator (TRAVEL_ENG). When the stroke length and units are set, the length is used to determine the total travel accumulated. The travel accu- mulator will have the units associated with stroke. Parameters STROKE_ENG and TRAVEL_UNITS in the transducer block. Example: Stroke length is set to 4 inches. If the valve is moved from 0 percent to 100 percent, 4 inches will be added to the travel accumulator. The travel accumulator units will be inches. If stroke length is 90 degrees for a rotary, the travel accumulator will now have units of degree. A 0 percent to 100 percent stroke will add 90 to the travel accumulator. NOTE: Stroke length is for information only. Custom Characterization: Custom characterization can be thought of as a soft cam. The user can choose between an equal percentage, quick opening, or custom user-defined characterization curve using 21-points. The control will linearly interpolate between points. Points do not have to be equally... - Page 118 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 94.2 11.86 94.8 14.15 95.5 17.54 96.0 20.93 96.5 25.94 97.0 30.95 97.5 38.36 98.0 45.77 98.5 55.66 99.0 67.68 99.5 82.31 100 100.0 100.0 NOTE: Custom characterization points can only be entered with the FB configurator. Quick Open Equal Percent Linear FINAL_VALUE (% FS) Figure 10.3 Logix 3400IQ Digital Positioner Characteristic Curves...
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Page 119: Figure 10.3 Logix 3400Iq Digital Positioner Characteristic Curves
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 10.15 Transducer Block Characterization Parameters Parameter Description Value — Meaning Comments MODE_BLK The operating mode of the Permitted Modes: Auto The transducer block transducer block - Auto (target mode) OOS must be out-of-service - Out of Service before the user can edit or change characterization. CONTROL_FLAGS Byte values which select 1 Quick Opening Curve* Loads factory defined QO positioner operation fea- curve as custom curve. tures 2 Equal Percent Curve Loads factory defined equal percent curve as custom curve. -
Page 120: Initiating A Valve Signature
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Steps: 1. Verify the process is in a safe condition and that the valve may be taken out of service. 2. Put the Transducer block MODE_BLK OOS 3. Make sure that ‘Quick Opening Curve’, ‘Equal Percent Curve’, nor ‘ Custom Characterization Active’ are selected in CONTROL_FLAGS. 4. Enter the values for CURVEX and CURVEY to define the desired response. Care must be taken to assure that each CURVEX value has the correct corresponding CURVEY value. The user may choose any number in the range to define the curve. The 21 CURVEX points do not need to be evenly spaced, if so desired. However, the CURVEX values must be in ascending (or equal) order. The CURVEY points may be any value in the range, ascending or descending. The response is a linear interpolation, or straight-line, response between points. All 21-points must be defined. (i.e. If only 5 point sets were needed to define the desired operation, the remaining 16 points would need to be set to 110.). 5. Write the changes to the Logix 3400IQ digital positioner. 6. Activate the custom curve by selecting ‘Custom Characterization Active’ in CONTROL_FLAGS. (NOTE: Make sure that neither ‘Quick Opening Curve’ nor ‘Equal Percent Curve’ has been selected, if you are using your own custom curve.) 7. Write the changes to the Logix 3400IQ digital positioner. 8. Verify the proper operation of the stroke response by incrementally writing values to FINAL_ VALUE. (The Resource Block must also be OOS first.) CMD_USED, FINAL_POSITION_VALUE, and the valve response should track the desired curve. 9. Return the valve to service by returning both MODE_BLKs back to Auto. Characterization Retention Once a custom curve has been loaded into the Logix 3400IQ digital positioner’s memory it is retained... - Page 121 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 10.16 Transducer Block Signature Parameters Parameter Description Value-Meaning Comments MODE_BLK The operatingmode of the Permitted Modes: Auto - Auto The transducer block must be transducer block (target mode) OOS - Out of in the OOS mode to perform a Service signature SIG_FLAGS Byte values which select 0 - V ALVE INIT Initializes Select the desired signature which signature options valve for signature options and then make sure the are used capture. Read-only signature parameters are set to the desired operation before 1 - S TEP_RAMP Selects beginning the signature.
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Page 122: Table 10.16 Transducer Block Signature Parameters
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 10.16 Transducer Block Signature Parameters Parameter Description Value-Meaning Comments STROKE_ Stroking time during Seconds Determined during the last OPENTIM opening stroke calibration where the Step Time Test option was ran STROKE_ Stroking time during Seconds Determined during the last CLOSEDTIM closing stroke calibration where the Step Time Test option was ran * Special Note: Because of the internal Database size limit of 10K within the Fieldbus device, the values for RAMP_RATE or STEP_TIME may be recalculated to the most reasonable value to allow using the database. - Page 123 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 10.14 Signature Procedure The following steps are an example of how to initiate a ramp signature capture. 1. Make sure the process is in a safe condition and notify the control room that the valve will temporarily be taken off-line. 2. Verify preparedness to proceed. 3. Put the Transducer block MODE_BLK OOS 4. Set SIG_START to desired value. 5. Set SIG_STOP to desired value. 6. Set SAMPLE_TIME to desired value. (Typically 0.1) 7. In SIG_FLAGS, select; STEP_RAMP, PRESS_MEAS. 8. Write values to the Logix 1400 digital positioner. 9. Set RAMP_RATE to desired value. (Typically 100) 10. Write value to the Logix 1400 digital positioner. 11. In SIG_FLAGS, select BEGIN_SIG. 12. Write value to the Logix 1400 digital positioner. flowserve.com...
- Page 124 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 13. The valve will stroke to the beginning position, as defined by SIG_START ,and will begin ramping to the desired ending position, as defined by SIG_STOP. Notice that SIG_COUNTER will incre- ment while this takes place. (Typically- approx. 670 data sets will be collected with the above settings and full stroke of the valve. Exact numbers will vary) 14. SIG_FLAGS indicates SIG COMPLETE. 15. Return the MODE_BLK to Auto 16. Notify control room the valve is back on-line. The stored signature will remain in the Logix 3400IQ digital positioner volatile RAM until the either the unit is powered down, or another signature is taken which overwrites the previous one. STEP SIGNATURE If a step signature was desired, simply do not select STEP_RAMP in SIG_FLAGS, and then set the STEP_TIME prior to selecting BEGIN_SIG. Collection of Stored Signature The collection of the stored signature is accomplished by the host system. It is not part of the device. See host system programming. A simple utility using National Instruments NIFBUS is available from Flowserve for retrieving a signature file. This file is stored in a text format that can be imported into other programs for plotting and analysis. Contact Flowserve for more details.
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Page 125: Software Maintenance
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Software Maintenance 11.1 Code Download Code Download Utility A code download may be recommended to upgrade the fieldbus firmware. A download utility program is used to perform the upgrade. A code download also updates other files necessary for proper operation; specifically, new versions of the Standard Dictionary and Device Description files are loaded on the host computer. These files are compatible with the new code. A PC-based application is available to download new firmware into a Logix 3400IQ digital positioner. Refer to the documentation accompanying that application for instructions. CAUTION A code download can be performed on an active live network. Prepare the control loop by blocking in the final control device to a safe state. The positioner will be off- line for about 30 minutes. Save the present configuration before downloading. When the download is complete, the positioner will revert to its default settings. The Effects of a Code Download on a Device The effects on a device (as a result of the download) are that all configuration data in the device, with the exception of calibration data, is cleared. This includes: • Device and block tags • Block parameters •... - Page 126 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07...
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Page 127: Appendix A: Sample Configuration Record
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Appendix A: Sample Configuration Record Sample Device Configuration The following pages provide a printout example of the Function Block Application portion of a Logix 3400IQ digital positioner device configuration file. The printout was generated using the NI-FBUS Configurator application and shows function block parameters and values for a typical control loop. The printout is shown at the left side of the page. Comments and notes on the configuration are given on the left-hand side. All parameters, including read-only parameters, are included for completeness. Table 11.1 Logix 1400-011 : RS-011 (RB) Configuration File Data Comments (1) ST_REV = 0x0000 Device tag : Block tag name Block tagname (Resource block) (index) Parameter mnemonic = value (2) TAG_DESC = (3) STRATEGY = 0x0000 (4) ALERT_KEY = 0x00 (5) MODE_BLK = TARGET = Auto ACTUAL = Auto PERMITTED = Auto | OOS... - Page 128 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 11.1 Logix 1400-011 : RS-011 (RB) Configuration File Data Comments (14) GRANT_DENY = GRANT = 0x00 DENY = 0x00 (15) HARD_TYPES = Scalar Input (16) RESTART = Run (17) FEATURES = Reports | Faultstate (18) FEATURE_SEL = 0x0000 (19) CYCLE_TYPE = Scheduled (20) CYCLE_SEL = 0x0000 (21) MIN_CYCLE_T = 0x00000fa0millisec (22) MEMORY_SIZE = 0x0000Kbytes (23) NV_CYCLE_T = 0x01b77400millisec (24) FREE_SPACE = 0% (25) FREE_TIME = 89.5693% (26) SHED_RCAS = 0x0009c400millisec (27) SHED_ROUT = 0x0009c400millisec (28) FAULT_STATE = Clear (29) SET_FSTATE = OFF (30) CLR_FSTATE = Off (31) MAX_NOTIFY = 0x08 (32) LIM_NOTIFY = 0x08...
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Page 129: Table 11.2 Logix 3400Iq-011 : Xd-011 (Fvptb)
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 11.1 Logix 1400-011 : RS-011 (RB) Configuration File Data Comments (40) WRITE_ALM = UNACKNOWLEDGED = Un-initialized ALARM_STATE = Un-initialized TIME_STAMP = 01/01/72 00:00:00 (MM/DD/YY HH:MM:SS) SUB_CODE = Other VALUE = Discrete state 0 (41) DL_CMD1 = 0x00 (42) DL_CMD2 = 0x00 (43) DL_APPSTATE = 0x0000 (44) DL_SIZE = 0x000351b0 (45) DL_CHECKSUM = 0xff6f (46) REVISION_ARRAY = REVISION_ARRAY = 0x0100 REVISION_ARRAY = 0x0100 REVISION_ARRAY = 0x0020 (47) BLOCK_TEST = Constantly increases BLOCK_TEST = 0x37 BLOCK_TEST = 0x00 BLOCK_TEST = 0x00 BLOCK_TEST = 0x00... - Page 130 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 11.2 Logix 3400IQ-011 : XD-011 (FVPTB) Configuration File Data Comments (7) UPDATE_EVT = UNACKNOWLEDGED = Un-initialized UPDATE_STATE = Un-initialized TIME_STAMP = 01/01/72 00:00:00 (MM/DD/YY HH:MM:SS) STATIC_REVISION = 0x0000 RELATIVE_INDEX = 0x0000 (8) BLOCK_ALM = UNACKNOWLEDGED = Unacknowledged ALARM_STATE = Un-initialized TIME_STAMP = 01/01/72 00:00:00 (MM/DD/YY HH:MM:SS) SUB_CODE = OutOfService VALUE = 0x00 (9) TRANSDUCER_DIRECTORY = 0x0000 (10) TRANSDUCER_TYPE = 0x0000 (11) XD_ERROR = None (12) COLLECTION_DIRECTORY = 0x00000000 (13) FINAL_VALUE = STATUS = Good_Cascade::NonSpecific:NotLimited VALUE = 0 (14) FINAL_VALUE_RANGE = EU_100 = 105...
- Page 131 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 11.2 Logix 3400IQ-011 : XD-011 (FVPTB) Configuration File Data Comments (34) GAIN_UPPER = 2 (35) GAIN_LOWER = 1 (36) GAIN_MULT = .05 (37) IGAIN = 10 (38) IL_OFFSET = 0.05 (39) STATUS_FLAGS = 0x08 (40) CMD_USED = 55 (41) CALIBRATE = 0x00 (42) DAC_VALUE = 0x0000 (43) PRESS_CAL = 0.62 (44) CALIBRATE_FLAGS = 0x00 (45) SOFTSTOP_HIGH = 110 (46) SOFTSTOP_LOW = -10 (47) CYCLE_COUNTER = 0x00000006 (48) CYCLE_DEADBAND = 20 (50) TRAVEL_ENG = 4.9729 (51) TRAVEL_DEADBAND = 20 (52) TRAVEL_ALERT = 2e+006 (53) STROKE_ENG = 1 (54) TRAVEL_UNITS = 0x2f (55) FUTUREXD1 = 0x0000...
- Page 132 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 11.2 Logix 3400IQ-011 : XD-011 (FVPTB) Configuration File Data Comments (75) SPI_TEST_RCV = SPI_TEST_RCV = 0x00 SPI_TEST_RCV = 0x00 SPI_TEST_RCV = 0x00 SPI_TEST_RCV = 0x00 SPI_TEST_RCV = 0x00 SPI_TEST_RCV = 0x00 SPI_TEST_RCV = 0x00 SPI_TEST_RCV = 0x00 SPI_TEST_RCV = 0x00 SPI_TEST_RCV = 0x00 SPI_TEST_RCV = 0x00 SPI_TEST_RCV = 0x00 SPI_TEST_RCV = 0x00 SPI_TEST_RCV = 0x00 SPI_TEST_RCV = 0x00 SPI_TEST_RCV = 0x00 (76) SPI_TEST_TX = SPI_TEST_TX = 0x00 SPI_TEST_TX = 0x00 SPI_TEST_TX = 0x00...
- Page 133 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 11.3 Logix 3400IQ-011 : AO-011 (AO) Configuration File Data Comments (1) ST_REV = 0x0002 Block tagname (Analog output) (index) parameter mnemonic = value (2) TAG_DESC = (3) STRATEGY = 0x0000 (4) ALERT_KEY = 0x00 (5) MODE_BLK = TARGET = Auto ACTUAL = Auto PERMITTED = RCas | Cas | Auto | Man | OOS NORMAL = Auto (6) BLOCK_ERR = 0x0000 (7) PV = S TATUS = Good_NonCascade::UnacknowledgedBlockAlarm: NotLimited VALUE = 82.78 (8) SP = STATUS = Good_Cascade::NonSpecific:NotLimited VALUE = 83.04 (9) OUT =...
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Page 134: Table 11.3 Logix 3400Iq-011 : Ao-011 (Ao)
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 11.3 Logix 3400IQ-011 : AO-011 (AO) Configuration File Data Comments (17) CAS_IN = STATUS = Good_Cascade::NonSpecific:NotLimited VALUE = 0 (18) SP_RATE_DN = 1.#INFPV/Sec (19) SP_RATE_UP = 1.#INFPV/Sec (20) SP_HI_LIM = 100 (21) SP_LO_LIN = 0 (22) CHANNEL = 0x0001 (23) FSTATE_TIME = 0Sec (24) FSTATE_VAL = 0 (25) BKCAL_OUT = STATUS = Good_Cascade::NonSpecific:NotLimited VALUE = 0 (26) RCAS_IN = STATUS = Good_Cascade::NonSpecific:NotLimited VALUE = 0 Initialized value = Un-initialized, must be set to valid value (27) SHED_OPT = NormalShed_NormalReturn (28) RCAS_OUT = STATUS = Good_Cascade::NotInvited:NotLimited VALUE = 83.04... - Page 135 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 11.4 Logix 3400IQ-011 : PID-011 (PID) Configuration File Data Comments (1) ST_REV = 0x0002 Block tagname (PID Control Block) (index) Paramter mnemonic = value (2) TAG_DESC = (3) STRATEGY = 0x0000 (4) ALERT_KEY = 0x00 (5) MODE_BLK = TARGET = Auto ACTUAL = Auto PERMITTED = ROut | RCas | Cas | Auto | Man | OOS NORMAL = Auto (6) BLOCK_ERR = 0x0000 (7) PV = STATUS = Good_Cascade::NonSpecific:NotLimited VALUE = 0 (8) SP = STATUS = Good_Cascade::NonSpecific:LowLimited VALUE = 0 (9) OUT = STATUS = Good_Cascade::NonSpecific:NonLimited VALUE = 0...
- Page 136 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 11.4 Logix 3400IQ-011 : PID-011 (PID) Configuration File Data Comments (21) SP_HI_LIM = 100 (22) SP_LO_LIM = 0 (23) GAIN = 0 (24) RESET = 5Sec (25) BAL_TIME = 0Sec (26) RATE = 0Sec (27) BKCAL_IN = STATUS = Good_Cascade::NonSpecific:NotLimited VALUE = 0 (28) OUT_HI_LIM = 100 (29) OUT_LO_LIM = 0 (30) BKCAL_HYS = 0.5% (31) BKCAL_OUT = STATUS = Good_Cascade::NonSpecific:NotLimited VALUE = 0 (32) RCAS_IN = STATUS = Good_Cascade::NonSpecific:NotLimited VALUE = 0 (33) ROUT_IN = STATUS = Good_Cascade::NonSpecific:NotLimited VALUE = 0...
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Page 137: Table 11.4 Logix 3400Iq-011 : Pid-011 (Pid)
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 11.4 Logix 3400IQ-011 : PID-011 (PID) Configuration File Data Comments (41) FF_SCALE = EU_100 = 100 EU_0 = 0 UNITS_INDEX = 0x0000 DECIMAL = 0x00 (42) FF_GAIN = 0 (43) UPDATE_EVT = UNACKNOWLEDGED = Unacknowledged UPDATE_STATE = Active-Not Reported TIME_STAMP = 10/07/98 11:53:12 (MM/DD/YY HH:MM: STATIC_REVISION = 0x0002 RELATIVE_INDEX = 0x0022 (44) BLOCK_ALM = UNACKNOWLEDGED = Un-initialized ALARM_STATE = Un-initialized TIME_STAMP = 10/07/98 11:53:12 (MM/DD/YY HH:MM: SUB_CODE = Other VALUE = 0x00 (45) ALARM_SUM = CURRENT = 0x0000 UNACKNOWLEDGED = 0x0000... - Page 138 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 11.4 Logix 3400IQ-011 : PID-011 (PID) Configuration File Data Comments (61) HI_ALM = UNACKNOWLEDGED = Un-initialized ALARM_STATE = Un-initialized TIME_STAMP = 01/01/72 00:00:00 (MM/DD/YY HH:MM:SS) SUB_CODE = Other VALUE = 0 (62) LO_ALM = UNACKNOWLEDGED = Un-initialized ALARM_STATE = Un-initialized TIME_STAMP = 01/01/72 00:00:00 (MM/DD/YY HH:MM:SS) SUB_CODE = Other VALUE = 0 (63) LO_LO_ALM = UNACKNOWLEDGED = Un-initialized ALARM_STATE = Un-initialized TIME_STAMP = 01/01/72 00:00:00 (MM/DD/YY HH:MM:SS) SUB_CODE = Other VALUE = 0 (64) DV_HI_ALM = UNACKNOWLEDGED = Un-initialized ALARM_STATE = Un-initialized...
- Page 139 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 11.4 Logix 3400IQ-011 : PID-011 (PID) Configuration File Data Comments (74) BLOCK_TEST = Constantly increases BLOCK_TEST = 0x3d BLOCK_TEST = 0x00 BLOCK_TEST = 0x00 BLOCK_TEST = 0x00 BLOCK_TEST = 0x00 BLOCK_TEST = 0x00 BLOCK_TEST = 0x0b BLOCK_TEST = 0xd1 flowserve.com...
- Page 140 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07...
- Page 141 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Glossary A/D: Also called ADC or analog-to-digital converter. An A/D converts an analog signal into an integer count. This integer count is then used by the micro controller to process information such as position, pressure and temperature. D/A: Also called DAC or digital-to-analog converter. A D/A converts an integer count into an analog output signal. The D/A is used to take a number from the micro controller and command an external device such as a pressure modulator. EEPROM: Electrically Erasable Programmable Read Only Memory. A device which retains data even when power is lost. Electrically erasable means that data can be changed. EEPROM have a limited number of times data can be re written. Micro controller: In addition to an integral CPU (microprocessor), the micro controller has built in memory and I/O functions such as A/D and D/A. Microprocessor: Semiconductor device capable of performing calculations, data transfer, and logic decisions. Also referred to as CPU (Central Processing Unit). Protocol: A set of rules governing how communications messages are sent and received. PV: Primary Variable or Process Variable. Resolution: Resolution is a number which indicates the smallest measurement which can be made. You will often see Analog-to-Digital (A/D) converters referred to as a 10-bit A/D or a 12-bit A/D. 10-bit and 12-bit are terms which indicate the total number of integer counts which can be used to measure a sensor or other input. To determine the total integer count, raise 2 to the power of the number of bits. Example: 12-bit A/D Total integer number = 2Number of Bits = 212= 4096 Resolution is the measurement range divided by the maximum integer number.
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Page 142: List Of Figures
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 List of Figures Figure 1.1 Fieldbus Positioner (Logix 3400IQ Digital Positioner) 14 Figure 1.2 Functional Block Diagram of Logix 3400IQ digital positioner Operating with other instruments 14 Figure 1.3 Logix 3400IQ Digital Positioner Block Diagram 14 Figure 1.4 Fieldbus Connecting Control Room and Field Devices 16 Figure 1.5 Fieldbus Devices Contain Device Applications and Function Blocks 17 Figure 2.1 Fieldbus Network Components 20 Figure 3.1 Connecting wiring device 21 Figure 4.1 Typical Mounting Area Considerations Prior to Installation 24 Figure 5.1 Typical Linear Actuator-mounted Installation 25 Figure 5.2 Rotary Transfer Case Mounting 26 Figure 5.3 Rotary Valve with Four-bar Linkage 26 Figure 5.4 Logix 3400IQ Digital Positioner Mounted to a Diaphragm Actuator 26 Figure 5.5 Logix 3400IQ Digital Positioner Terminal Block 27 Figure 5.6 Logix 3400IQ Digital Positioner Terminal Block 28 Figure 6.1 Write-protect Dip Switch Location on Main PCB Cover 35 Figure 8.1... - Page 143 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Table 8.8 PID Control Function Block Parameters 57 Table 8.9 Honeywell PID Parameters 59 Table 8.10 PID Tuning Parameter Values 62 Table 8.11 Table Description for Block Parameter Summary 62 Table 8.12 Resource Block Parameter Summary 64 Table 8.13 Transducer Block Parameter Summary 64 Table 8.14 Analog Output Function Block Parameter Summary 69 Table 8.15 PID Function Block Parameter Summary 69 Table 8.16 Link Objects Defined for Logix 3400IQ Digital Positioner 70 Table 8.17 Resource Block View List 71 Table 8.18 Transducer View Block List 72 Table 8.19 AO Block View Table 78 Table 8.20 PID Block View Table 78 Table 8.21 Block Parameter Index Table 85 Table 8.22 Logix 3400IQ Digital Positioner SMIB Object Dictionary 87 Table 8.23 System Management Supported Features 88 Table 8.24...
- Page 144 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Index Advanced Features ............114, 117 Air Action ..............32, 51, 119 Air Supply Requirements ............24 Alarm 1.23 V Reference ..............81 12 bit A/D Reference ............80 12-bit D/A ................. 81 Bottom Sensor ...............82 EEPROM checksum ..............81 Hall sensor ................81 Loss of Pressure ..............81 Modulator Current ..............81 Position Alerts ................82 Position Deviation ..............83 Pressure .................81 Supply Sensor ................82 Temperature ................81 Top Sensor ................82 Alarm and Event Reporting .............80 Alarms Internal Positioner Alarms ..........80 Internal Positioner Alerts .
- Page 145 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 DD Diskette ................84 Device Application Alert Objects ..............79 Device Description ............84 Domain Objects ..............83 Link Objects ..............70 Management VFD .............87 Network Management ............91 Object Dictionary ..............84 System Management ............87 Trend Objects ..............83 View Objects ..............71 Device Description ..............84 Device diagnostics ..............101 Device Not Visible on Network ..........102 Device Tag ..............6, 22, 127 Diagnostics BLOCK_ERR Parameter .
- Page 146 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 Lightning Protection ...............29 Linear vs. Rotary ..............33 Mechanical Configuration Issues ...........32 Micro controller ..............141 Micro-controller ..............81 Microprocessor ..............16, 141 Mounting Variations ...............25 Network Management ............91 NI-FBUS Configurator . ..5, 10, 21, 31-38, 62, 97, 101, 106, 127 Object Dictionary ..............8, 84 Operation ................39 Operation Tasks ..............39 Operator Interface ..............20 Parameter Definitions .............50 PID Block Description .............57 PID Ideal and PID Robust ............61 Power Requirements .
- Page 147 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 System Management ..............87 Temperature and Pressure Units ..........117 Temperature Limits ..............24 Travel Accumulator ..............82 Trend Objects ................83 Troubleshooting ..............101 Tuning gain multiplier ............114 Inner-loop offset ..............98 Integral Gain .................114 Integration Summer .............115 Maximum gain ..............115 Minimum Gain ..............115 VCRs ............7, 8, 70, 91, 92, 125 Wiring .
- Page 148 Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07 United States Flowserve Corporation Flow Control 1350 N. Mountain Springs Pkwy. Springville, UT 84663 USA Phone: 801 489 8611 Facsimile: 801 489 3719 www.flowserve.com Australia Flowserve Australia, Pty. Ltd. 14 Dalmore Drive Scoresby, Victoria 3179 Australia Phone: 613-9729-2633 Facsimile: 613-9729-2644 Singapore Flowserve Singapore 12 Tuas Avenue 20 Singapore 638824 Telephone: +65 862 3332 FCD LGENIM3402-00 Printed in USA. Facsimile: +65 862 4940 To find your local Flowserve representative: For more information about Flowserve Corporation, visit www.flowserve.com or call USA 1 800 225 6989 Flowserve Corporation has established industry leadership in the design and manufacture of its products. When properly selected, this Flowserve product is designed to perform its intended...
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