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Fail-safe signal modules
SIMATIC
Automation System S7-300 ET 200M
Distributed I/O Device
Fail-safe signal modules
Installation and Operating Manual
The following supplement is part of this documentation:
No.
Product Information
1
Product Information to the
manual edition 01/2010 S7-300
Distributed I/O device ET 200 M -
Fail-safe signal modules
01/2010
A5E00085586-10
Drawing number
Edition
A5E03004206-01
05/2010
Preface
Product overview
Configuration options
Configuration and parameter
assignment
Addressing and installation
Wiring
Fault reaction and
diagnostics
General technical data
Digital modules
Analog modules
Safety protector
Diagnostics data of the
signal modules
Dimensional drawings
Accessories and order
numbers
Response times
Switching capacitive and
inductive loads
1
2
3
4
5
6
7
8
9
10
A
B
C
D
E

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Table of Contents

   Summary of Contents for Siemens S7-300

  • Page 1 Fail-safe signal modules Preface Product overview Configuration options SIMATIC Configuration and parameter assignment Automation System S7-300 ET 200M Distributed I/O Device Addressing and installation Fail-safe signal modules Wiring Installation and Operating Manual Fault reaction and diagnostics General technical data The following supplement is part of this documentation:...
  • Page 2 Note the following: WARNING Siemens products may only be used for the applications described in the catalog and in the relevant technical documentation. If products and components from other manufacturers are used, these must be recommended or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and maintenance are required to ensure that the products operate safely and without any problems.
  • Page 3: Preface

    Purpose of this manual This reference manual provides a pool of information about the control functions, the functionality and technical data of the fail-safe signal modules of a S7-300 system. Basic knowledge required Working with this manual requires general knowledge of automation engineering. It is also...
  • Page 4 Preface Approvals The S7-300 system complies with the requirements and criteria of IEC 61131, Part 2. In addition, CSA, UL, and FM approvals are available for S7-300. The S7-300 fail-safe signal modules have also been certified for use in safety mode to: ●...
  • Page 5 SIMATIC S7 system description Contains a summary of detailed technical information relating to  fail-safe engineering in S7-300 and S7-400 systems Includes information on the calculation of monitoring and  response times of S7 Distributed Safety and S7 F/FH fail-safe systems...
  • Page 6 I/O are implemented in a master control system) The entire SIMATIC S7 documentation on CD-ROM is available on request. Guide This manual describes the S7-300 fail-safe modules and comprises both instructive and reference chapters (technical data and annexes). It contains essential information about the fail-safe signal modules: ●...
  • Page 7 "S7 Distributed Safety" and "S7 F/FH Systems". Recycling and disposal The S7-300 can be recycled due to its low content of pollutants. Contact a company which is certified for the disposal of electronic scrap for environment-friendly disposal and recycling of your old device.
  • Page 8 Plants with safety-oriented characteristics are subject to special requirements for operational safety for which the operator is responsible. The supplier also undertakes to conform to special measures for product monitoring. Siemens publishes a special newsletter to keep plant operators informed about product developments and properties which may form important issues in terms of operational safety.
  • Page 9: Table Of Contents

    Table of contents Preface ..............................3 Product overview ............................. 13 Introduction ..........................13 Using Fail-Safe Signal Modules....................13 Guide to commissioning fail-safe signal modules................17 What is PROFINET IO? .......................18 Configuration options..........................19 Introduction ..........................19 Configuration with F-SMs in Standard Mode ................20 Configuration with F-SMs in Safety Mode ...................21 Configuration and parameter assignment ....................
  • Page 10 Table of contents General technical data..........................59 Introduction ..........................59 Standards and Approvals......................59 Electromagnetic Compatibility......................62 Shipping and storage conditions....................68 Mechanical and Climatic Environmental Conditions..............68 Specifications for Nominal Line Voltages, Isolation Tests, Protection Class, and Degree of Protection .............................70 Digital modules ............................73 Introduction ..........................73 Discrepancy analysis at the fail-safe digital input modules ............74 SM 326;...
  • Page 11 Table of contents 8.6.4 Application 2: standard mode with high availability, application 4: Safety Mode SIL2/Cat.3/PLd with high availability and application 6: Safety mode SIL3/Cat.4/PLe with high availability (in S7 F/FH Systems only) ................149 8.6.5 Parallel Connection of Two Outputs for Dark Period Suppression..........151 8.6.6 Diagnostics messages of SM 326;...
  • Page 12 Table of contents 9.3.15.1 Setting smoothing of analog values...................269 9.3.15.2 Parameter assignment of discrepancy analysis for 1oo2 evaluation.........271 9.3.15.3 Deactivate one channel of a channel pair for 1oo1 evaluation..........278 9.3.16 HART basics ..........................278 9.3.16.1 What is HART? ..........................278 9.3.16.2 Properties of HART........................278 9.3.16.3 Principles of HART operation.....................279 9.3.16.4 Integration of the HART field devices ..................281 9.3.16.5 Using HART ..........................282...
  • Page 13: Product Overview

    Fail-safe signal modules Compared to standard modules of the S7-300 module family, the fail-safe signal modules differ in terms of their internal dual-channel structure. The two integrated processors monitor each other, automatically test the I/O circuits, and force the fail-safe signal module into safe state when a fault/error has been detected.
  • Page 14 Product overview 1.2 Using Fail-Safe Signal Modules Types of fail-safe signal modules Fail-safe signal modules (short name: F-SM) available: Table 1- 1 Types of fail-safe signal modules Fail-safe signal modules Capable of redundancy SM 326; DI 24 x DC 24V SM 326;...
  • Page 15 SM 336; F-AI 6 x 0/4 ... 20 mA HART, you can operate all other fail-safe signal modules in standard mode with more stringent diagnostics requirements. When operated in standard mode, the fail-safe signal modules respond similar to standard S7-300 I/O modules. Operation in safety mode You can implement the fail-safe signal modules for operation in safety mode.
  • Page 16 Options of inserting redundant signal modules, depending on availability requirements (for example configurations, refer to "Safety Engineering in SIMATIC S7, System Description (http://support.automation.siemens.com/WW/view/en/37231510)"): ● Separately in two ET 200M distributed I/O devices ● In the same ET 200M distributed I/O device Software requirements of redundant operation of F-SMs are described in the chapter "Configuration and parameter assignment (Page 25)".
  • Page 17: Guide To Commissioning Fail-safe Signal Modules

    Guide to commissioning fail-safe signal modules Introduction The table below lists all important tasks related to the commissioning of fail-safe signal modules in S7-300 or ET 200M. Commissioning sequence, starting with the selection of the F-SMs Table 1- 5 Commissioning sequence, starting with the selection of the F-SMs...
  • Page 18: What Is Profinet Io

    Topology of a PROFINET IO network The figure below shows a typical PROFINET IO network topology. Existing PROFIBUS slaves can be integrated using an IE/PB link. IO-Device IO-Controller IO-Device IO-Device S7-300 ET 200pro ET 200S OP 25 Switch Switch Switch...
  • Page 19: Configuration Options

    Configuration options Introduction In this chapter This chapter contains information about: ● Central and distributed configuration with F-SMs ● Components which can be used for F-SMs in standard mode ● Components which can be used for F-SMs in safety mode ●...
  • Page 20: Configuration With F-sms In Standard Mode

    SM 326; DO 8 x DC 24V/2A PM operate in safety mode only. CPUs approved for use in S7-300 systems (central configuration) All CPUs of the S7-300 family can be implemented in a central configuration when operating the fail-safe signal modules in standard mode.
  • Page 21: Configuration With F-sms In Safety Mode

    ● Availability of the configuration CPUs approved for use in S7-300 systems (central configuration) All F-CPUs of the S7-300 family can be used in a central configuration in safety mode. Note You can, however, install the SM 326; DO 8 x DC 24V/2A PM centrally with all F-CPUs of the S7-300 spectrum with: ...
  • Page 22 – SM 326; DI 24 x DC 24V (bis 6ES7326-1BK01-0AB0) – SM 326; DO 8 x DC 24V/2A PM (6ES7326-2BF40-0AB0)  if the F-SMs are integrated centrally in an S7-300.  if the PROFIBUS DP is wired using a copper cable.
  • Page 23 Safety protector For detailed information about the safety protector, refer to chapter S7-300, CPU 31xC For detailed information on S7-300 configuration variants, refer to the and CPU 31x: Installation manual. ET 200M Distributed For detailed information on the configuration of ET 200M, refer to the I/O Device manual.
  • Page 24 Configuration options 2.3 Configuration with F-SMs in Safety Mode Fail-safe signal modules Installation and Operating Manual, 01/2010, A5E00085586-10...
  • Page 25: Configuration And Parameter Assignment

    ● For use in conjunction with S7 Distributed Safety and the HART function: STEP 7 – V5.4 SP 3 +HF3 or higher F Configuration Pack You can download the from the Internet (http://support.automation.siemens.com/WW/view/en/15208817) Fail-safe signal modules Installation and Operating Manual, 01/2010, A5E00085586-10...
  • Page 26 F Configuration Packs You can download the from the Internet (http://support.automation.siemens.com/WW/view/en/15208817). You enhance availability of the modules by assigning the corresponding parameters in the "Redundancy" tab of the object properties dialog for the modules. Fail-safe signal modules Installation and Operating Manual, 01/2010, A5E00085586-10...
  • Page 27: Parameter Assignment

    Configuration and parameter assignment 3.2 Parameter Assignment Parameter Assignment Assigning the module properties STEP 7 HW To assign parameters for the fail-safe signal modules, select the module in Config and then select the Edit > Object Properties menu command. The parameters you download from the programming device to the F-CPU are saved to CPU memory, and are then transferred by the F-CPU to the fail-safe signal module.
  • Page 28: Firmware Update Via Hw Config

    ● SM 326; F-DO 10 x DC 24V/2A PP ● SM 336; F-AI 6 x 0/4 ... 20 mA HART The latest firmware version is available in the Internet (http://support.automation.siemens.com/WW/view/en/25536344/133100). Requirements WARNING Check of the firmware version for F-validity When using a new firmware version, you must check whether the utilized firmware version is authorized for use in the respective module.
  • Page 29 Configuration and parameter assignment 3.3 Firmware update via HW Config Updating firmware 1. Switch the F-CPU/IM to STOP mode. HW Config 2. Select the F-SM in 3. Select the PLC > Update Firmware menu command. 4. Use the "Browse" button to select the path to the firmware files (*.upd). 5.
  • Page 30: I&m Identification Data

    Configuration and parameter assignment 3.4 I&M identification data I&M identification data Properties I data: Information about the module that generally appears on the module's housing. I data is only read: ● Hardware release status ● Firmware release status ● Serial number ●...
  • Page 31: Addressing And Installation

    Addressing and installation Address Assignments in the CPU Address assignment in standard and safety mode The fail-safe signal modules occupy the following address ranges in the CPU/F-CPU: ● In standard mode: The full I/O area (within and outside the process image) S7 Distributed Safety S7 F/FH Systems ●...
  • Page 32 Addressing and installation 4.1 Address Assignments in the CPU Bytes in the CPU Assigned bits in the CPU for each module: SM 326; DO 8 x DC 24V/2A PM: x + 0 Channel 7 Channel 6 Channel 5 Channel 4 Channel 3 Channel 2 Channel 1 Channel 0 SM 326;...
  • Page 33: Addressing The Channels

    SM 336; AI 6 x 13 Bit also applies: 8 to 8184 in increments of 8. Accessing channels of F-SMs operating in standard mode Channels of the F-SMs are accessed similar to the channels of S7-300 standard I/O modules. Fail-safe signal modules...
  • Page 34: Assigning The Profisafe Address

    Addressing and installation 4.3 Assigning the PROFIsafe address Accessing channels of F-SMs operating in safety mode S7 Distributed Safety The F-I/O channels are accessed in by means of the process image in S7 F/FH Systems the F-CPU; in you access these using fail-safe driver blocks. Additional information The address space allocated to the various channels is included in the module description, in the chapters dealing with digital and analog modules.
  • Page 35: Assigning Profisafe Address (starting Address Of F-sm)

    3. Set the start address of the fail-safe signal module at the address switch before you install it Setting the module start address You set the module start address similar to S7-300 standard I/O modules in the object STEP 7HW Config properties of the module using...
  • Page 36 Addressing and installation 4.3 Assigning the PROFIsafe address Setting the address switch Verify the correct setting of the address switch before you start installation. Figure 4-1 Example of address switch (DIP switch) settings Figure 4-2 Example for calculation of the start address Note An address switch of the smallest possible dimensions is installed for reasons of space saving.
  • Page 37 The PROFIsafe destination address and, thus, the switch setting on the address switch of the F-I/O must be unique network-wide* and station-wide** (system-wide). For S7-300 F- SMs and ET 200S, ET 200eco and ET 200pro F-modules, you can assign a maximum of 1022 different PROFIsafe destination addresses.
  • Page 38: Assigning Profisafe Address (f_destination_address)

    You set the module start address in the object properties of the STEP 7HW Config module similar to the addressing of S7-300 standard I/O modules in Setting safety mode Set "Safety mode" in the object properties of the module in SM 326; DI 24 x DC 24V (as of HW Config order no.
  • Page 39 Addressing and installation 4.3 Assigning the PROFIsafe address Setting the address switch before you start installation Verify the correct setting of the address switch Figure 4-3 Example of address switch (DIP switch) settings Figure 4-4 Example for calculation of the F_destination_address Note An address switch of the smallest possible dimensions is installed for reasons of space saving.
  • Page 40 The PROFIsafe destination address and, thus, the switch setting on the address switch of the F-I/O must be unique network-wide* and station-wide** (system-wide). For S7-300 F- SMs and ET 200S, ET 200eco and ET 200pro F-modules, you can assign a maximum of 1022 different PROFIsafe destination addresses.
  • Page 41: Installing

    The fail-safe signal modules belong to the S7-300 family and support central operation in S7- 300 and distributed operation in the ET 200M Distributed I/O Device. The fail-safe signal modules are installed in an S7-300 or ET 200M similar to any other S7- 300 signal module.
  • Page 42 Addressing and installation 4.4 Installing Fail-safe signal modules Installation and Operating Manual, 01/2010, A5E00085586-10...
  • Page 43: Wiring

    ● Special features in terms of the replacement of F-SMs Additional information For information about the wiring rules for fail-safe and standard signal modules, refer to the CPU 31xC and CPU 31x: Installation S7-300 Automation System, Hardware and Installation: manual. Fail-safe signal modules Installation and Operating Manual, 01/2010, A5E00085586-10...
  • Page 44: Safe Functional Extra-low Voltage For Fail-safe Signal Modules

    Make sure that the conductor cross-sections used for the galvanic interconnections are S7-300 Automation System: compliant with S7-300 installation guidelines (see the CPU 31xC and CPU 31x: installation Operating Instructions). The fail-safe signal modules and all their standard components can be operated in standard and safety mode on a single or on several shared power supply modules.
  • Page 45: Wiring Fail-safe Signal Modules

    S7-300/400 installation technology. Wiring Fail-Safe Signal Modules Wiring similar to standard signal modules The fail-safe signal modules belong to the S7-300 module family and are wired similar to any standard signal module in the S7-300 or ET 200M system. S7-300, CPU...
  • Page 46: Replacing Fail-safe Signal Modules

    Replacing Fail-Safe Signal Modules Inserting and removing F-SMs in standard mode Fail-safe signal modules can be inserted and removed at the S7-300 and ET 200M similar to any standard signal module. active bus modules An ET 200M configuration with supports hot-swapping of the F-SMs during operation of ET 200M.
  • Page 47: Sensor And Actuator Requirements For F-sms In Safety Mode

    The configuration with safety protector on the active backplane bus is described in the chapter "Safety protector (Page 297)". S7-300 Automation For information on module replacement in an S7-300 AS, refer to the System, Installation manual. For information on module replacement and the "hot-swapping" function at an ET 200M,...
  • Page 48 Wiring 5.4 Sensor and Actuator Requirements for F-SMs in Safety Mode Additional requirements for sensors and NAMUR sensors WARNING A "0" value is output to the F-CPU when faults are detected at the fail-safe input modules. Ensure that the "0" state of the sensors triggers a reliable response in the safety program. Example: The safety program of an EMERGENCY-OFF sensor must trigger "0"...
  • Page 49 Wiring 5.4 Sensor and Actuator Requirements for F-SMs in Safety Mode Additional requirements of actuators The fail-safe output modules perform a cyclic test of the outputs. The module briefly disables the activate outputs and enables the inactive outputs. The test pulses have the following duration: ●...
  • Page 50 Wiring 5.4 Sensor and Actuator Requirements for F-SMs in Safety Mode Fail-safe signal modules Installation and Operating Manual, 01/2010, A5E00085586-10...
  • Page 51: Fault Reaction And Diagnostics

    Reactions to Faults in Standard Mode Fault reactions Fail-safe signal modules react to faults similar to standard modules in S7-300 or ET 200M when operated in standard mode. You can react to a fault or interrupt event either by setting...
  • Page 52: Reactions To Faults In Safety Mode

    Fault reaction and diagnostics 6.1 Fault reactions of the F-SMs 6.1.2 Reactions to Faults in Safety Mode Safe state (safety concept) The safety concept is based on the existence of a safe state at all process variables. Note For digital signal modules, this safe state is the value "0". This applies to sensors and actuators.
  • Page 53 Additional information on passivation and reintegration For additional information on passivation and reintegration of F-I/O, refer to the S7 Distributed Safety Configuring and Programming (http://support.automation.siemens.com/WW/view/en/22099875) or S7 F/FH Configuring and Programming (http://support.automation.siemens.com/WW/view/en/16537972) manual. Fail-safe signal modules Installation and Operating Manual, 01/2010, A5E00085586-10...
  • Page 54 Fault reaction and diagnostics 6.1 Fault reactions of the F-SMs Disabling group diagnostics The "Group diagnostics" parameter is used to enable and disable the transfer of channel- specific diagnostic messages (for example, wire break, short-circuit) of the module to the unused CPU.
  • Page 55: Fault Reactions In Safety Mode With Parameter Setting "keep Last Valid Value

    Fault reaction and diagnostics 6.1 Fault reactions of the F-SMs 6.1.3 Fault reactions in safety mode with parameter setting "Keep last valid value" Applications Typical applications for safety mode with parameter setting "Keep last valid value" are: ● Ventilation systems ●...
  • Page 56: Diagnosis Of Faults Of F-sms

    Fault reaction and diagnostics 6.2 Diagnosis of Faults of F-SMs Diagnosis of Faults of F-SMs Definition The diagnostics functions can be used to identify signal detection errors at the fail-safe signal modules. Diagnostics information is assigned either to a channel or to the entire module.
  • Page 57 Fault reaction and diagnostics 6.2 Diagnosis of Faults of F-SMs Diagnostics LEDs of the F-SMs Safety mode Standard mode Channel or module Defective Channel or module fault Defective module fault module SF (red) SAFE (green) The following applies to the SM 326; DI 24 x DC 24V, SM 326; DO 8 x DC 24V/2A PM, SM 326;...
  • Page 58 Fault reaction and diagnostics 6.2 Diagnosis of Faults of F-SMs Fail-safe signal modules Installation and Operating Manual, 01/2010, A5E00085586-10...
  • Page 59: General Technical Data

    ● the test criteria for fail-safe signal modules. Standards and Approvals CE approval Siemens products meet requirements and the safety objectives of the EC Directives listed below and comply with harmonized European standards (EN) for programmable logic controllers published in the Gazette of the EC: ●...
  • Page 60 94/9/EC "Equipment and protective systems for use in potentially explosive atmospheres" (Explosion Protection Directive): II (2) G [Ex ib] IIC S7-300, M7-300, This approval applies to explosive gas mixtures of Group IIC (see the ET 200M Automation Systems, Principles of Intrinsically-Safe Design manual).
  • Page 61 General technical data 7.2 Standards and Approvals Summary of UL and FM approvals The table below provides an overview of the fail-safe signal modules, including detailed information on their approvals and fields of application. Component Certified to: UL 508 FM 3611, 3600, ATEX 2671 X ATEX 3810 CI.
  • Page 62: Electromagnetic Compatibility

    The latest TÜV documents are available in the Internet (http://support.automation.siemens.com/WW/view/en/11669702/134200). Requesting a TÜV certificate You can request copies of the TÜV certificate and of the included report at the following address: Siemens Aktiengesellschaft Sector Industry I IA AS R&D DH A P.O. Box 1963 D-92209 Amberg Type Examination Certificates and Declarations of Conformity The type examination certificates and the declaration of conformity of the SM 326;...
  • Page 63 General technical data 7.3 Electromagnetic Compatibility Pulse-shaped interference The table below shows the EMC of fail-safe modules in terms of pulse-shaped interference. The S7-300/M7-300/ET 200M system must comply with electrical installation specifications and guidelines. Note Not suitable for use in residential areas.
  • Page 64 General technical data 7.3 Electromagnetic Compatibility Surge protection for S7-300/ET 200M with fail-safe signal modules If your system requires a degree of protection higher than severity level 2, it is advisable to install an external protective circuit in order to provide sufficient surge strength to an S7- 300/ET 200M with fail-safe signal modules.
  • Page 65 General technical data 7.3 Electromagnetic Compatibility For order numbers, refer to the ET 200S Distributed I/O System manual PROFIBUS DP: MD/HF5 + Lightning conductor CT (order numbers of Dehn company 919 571 + 919 506) PROFINET IO: Dehnpatch (order number of Dehn company 919 100) Fail-safe signal modules Installation and Operating Manual, 01/2010, A5E00085586-10...
  • Page 66 General technical data 7.3 Electromagnetic Compatibility Lightning conductor VT (order number of Dehn company 918 402) DCO RK D 5 24 (order number of Dehn company 919 986) DCO RK E 24 (order number of Dehn company 919 988) or in case of operation in potentially explosive atmosphere: BXT ML4 BD EX24 (order number of Dehn company 920 381) BXT BA5 EX (order number of Dehn company 920 301) Figure 7-1...
  • Page 67 General technical data 7.3 Electromagnetic Compatibility Emission of radio interferences Emission of electromagnetic interference to EN 55011: Limit class A, group 1 from 20 MHz to 230 MHz < 30 dB (µV/m)Q from 230 MHz to 1000 MHz < 37 dB (µV/m)Q Measured at a distance of 30 m Interference emission at AC mains to EN 55011: Limit class A, group 1...
  • Page 68: Shipping And Storage Conditions

    – Corrosive vapors or gases ● In systems that require special monitoring, such as: – Electrical systems in especially dangerous areas Installation of the ET 200M/S7-300 and fail-safe signal modules in control cabinets is considered a suitable additional measure. Fail-safe signal modules...
  • Page 69 General technical data 7.5 Mechanical and Climatic Environmental Conditions Mechanical environmental conditions The mechanical environmental conditions for the operation of fail-safe signal modules are defined in the table below based on sinusoidal vibration. Frequency range (Hz) Continuous Intermittent 10 ≤ f ≤ 58 Amplitude = 0.0375 mm Amplitude = 0.075 mm 58 ≤...
  • Page 70: Specifications For Nominal Line Voltages, Isolation Tests, Protection Class, And Degree Of Protection

    The fail-safe signal modules operate at a rated voltage of 24 VDC; tolerance = 20.4 VDC to 28.8 VDC. We recommend using power supplies of the Siemens "SITOP power" series. Test voltages The isolation test to IEC 61131-2 and the following:...
  • Page 71 General technical data 7.6 Specifications for Nominal Line Voltages, Isolation Tests, Protection Class, and Degree of Protection Protection against the ingress of foreign matter and water Degree of protection IP 20 to EN 60529, that is, protection against contact with standard test fingers Also: Protection against the ingress of foreign particles with diameters above 12.5 mm.
  • Page 72 General technical data 7.6 Specifications for Nominal Line Voltages, Isolation Tests, Protection Class, and Degree of Protection Fail-safe signal modules Installation and Operating Manual, 01/2010, A5E00085586-10...
  • Page 73: Digital Modules

    Digital modules Introduction Chapter contents Description of the four fail-safe digital modules of the S7-300 module range which are are available for connecting digital sensors and/or actuators. Information on fail-safe digital modules provided in this chapter: ● Properties ● Module view and block diagram ●...
  • Page 74: Discrepancy Analysis At The Fail-safe Digital Input Modules

    Digital modules 8.2 Discrepancy analysis at the fail-safe digital input modules Discrepancy analysis at the fail-safe digital input modules Discrepancy analyses There are two types of discrepancy analysis for fail-safe input modules: ● With 1oo2 evaluation in the digital input module ●...
  • Page 75 Digital modules 8.2 Discrepancy analysis at the fail-safe digital input modules "Provide 0 value" The value "0" is returned to the safety program in the F-CPU as soon as discrepancy is detected between the signals of two input channels. The sensor-actuator response time is not influenced by the discrepancy time if the "Provide 0 value"...
  • Page 76: Sm 326; Di 24 X Dc 24v

    Digital modules 8.3 SM 326; DI 24 x DC 24V SM 326; DI 24 x DC 24V 8.3.1 Properties, Front View, Connection Diagram, and Block Diagram Order number 6ES7326-1BK02-0AB0 Properties SM 326; DI 24 x DC 24V has the following properties: ●...
  • Page 77 Digital modules 8.3 SM 326; DI 24 x DC 24V Address assignment The following figure shows the assignment of channels to addresses. Figure 8-1 Address assignment for SM 326; DI 24 x DC 24V Configuration in RUN (CiR) The SM 326; DI 24 x DC 24V (as of order no. 6ES7326-1BK01-0AB0) supports configuration in run (CiR) when operated in standard mode (non-safety mode).
  • Page 78 Digital modules 8.3 SM 326; DI 24 x DC 24V Front view Figure 8-2 Front view of SM 326; DI 24 x DC 24V Fail-safe signal modules Installation and Operating Manual, 01/2010, A5E00085586-10...
  • Page 79 Digital modules 8.3 SM 326; DI 24 x DC 24V Channel numbers The channel numbers are used to uniquely identify the inputs and to assign channel-specific diagnostic messages. You can configure 1oo1 and 1oo2 evaluation of the sensors separately for each module channel or channel pair (see table below for example). Figure 8-3 Channel numbers for SM 326;...
  • Page 80 Digital modules 8.3 SM 326; DI 24 x DC 24V Wiring and block diagram of SM 326; DI 24 x DC 24V and internal sensor supply Figure 8-4 Wiring and block diagram of SM 326; DI 24 x DC 24V and internal sensor supply Fail-safe signal modules Installation and Operating Manual, 01/2010, A5E00085586-10...
  • Page 81 Digital modules 8.3 SM 326; DI 24 x DC 24V External sensor supply The figure below shows how you can connect the sensors to an external sensor supply (for example, from another module: L+). All 6 channels of a channel group (0 to 5; 6 to 11; 12 to 17 or 18 to 23) must be connected to the same external sensor supply.
  • Page 82: Use Cases For The Sm 326; Di 24 24v Dc

    Digital modules 8.3 SM 326; DI 24 x DC 24V 8.3.2 Use cases for the SM 326; DI 24 24V DC Selecting the application The figure below helps you to select an application based on availability and fail-safe operation requirements. The next pages provide information on the module wiring for a STEP 7 S7 Distributed Safety specific application, and on the parameters to set in...
  • Page 83: Application 1 : Standard Mode

    Digital modules 8.3 SM 326; DI 24 x DC 24V 8.3.3 Application 1 : Standard Mode Introduction Below are the wiring scheme and the parameter assignment of SM 326; DI 24 x DC 24V for application 1: Standard mode Diagnostic messages, possible causes of the problem and their corrective measures are found in tables in the chapter "Diagnostic messages of SM 326;...
  • Page 84: Application 2 : Standard Operation With High Availability

    Digital modules 8.3 SM 326; DI 24 x DC 24V 8.3.4 Application 2 : Standard operation with high availability Introduction Below are the wiring scheme and the parameter assignment of SM 326; DI 24 x DC 24V for application 2: standard mode with high availability Diagnostic messages, possible causes of the problem and their corrective measures are found in tables in the chapter "Diagnostic messages of SM 326;...
  • Page 85 Digital modules 8.3 SM 326; DI 24 x DC 24V Wiring scheme for application 2 with single-channel connection of two redundant sensors Two redundant sensors are wired to a single channel at the two analog modules for each process signal. The sensors can also be connected to an external sensor supply. Figure 8-9 Wiring scheme of the SM 326;...
  • Page 86: Application 3: Safety Mode Sil2/cat.3/pld

    Digital modules 8.3 SM 326; DI 24 x DC 24V Parameters Range of values in standard mode Type Effective range Link signals by logical "AND" Reaction to static redundant module  operation discrepancy error pair Link signals by logical "OR" ...
  • Page 87 Digital modules 8.3 SM 326; DI 24 x DC 24V Assignable parameters for application 3 Table 8- 4 Parameters for application 3 of SM 326; DI 24 x DC 24V Parameters Range of values in safety mode Type Effective range "Parameters"...
  • Page 88: Application 4: Safety Mode Sil2/cat.3/pld With High Availability (in S7 F/fh Systems Only)

    Digital modules 8.3 SM 326; DI 24 x DC 24V 8.3.6 Application 4: Safety mode SIL2/Cat.3/PLd with high availability (in S7 F/FH Systems only) Introduction Below are the wiring scheme and the parameter assignment of the SM 326; DI 24 x DC 24V digital module for application 4: Safety Mode SIL2/Cat.3/PLd with high availability.
  • Page 89 Digital modules 8.3 SM 326; DI 24 x DC 24V Wiring scheme for application 4 with single-channel connection of two redundant sensors Two redundant sensors are each connected via one channel to the two analog modules for each process signal (1oo1 evaluation). The sensors can also be connected to an external sensor supply.
  • Page 90: Application 5: Safety Mode Sil3/cat.4/ple

    Digital modules 8.3 SM 326; DI 24 x DC 24V Parameters Range of values in safety mode Type Effective range Redundant module (selection of an existing additional static redundant module module of the same type) pair Discrepancy time 10 ms to 30000 ms static redundant module pair...
  • Page 91 Digital modules 8.3 SM 326; DI 24 x DC 24V Wiring scheme for application 5 with two-channel nonequivalent connection of one nonequivalent sensor One nonequivalent sensor is connected via two channels nonequivalently to each of two opposite inputs of the digital module for each process signal (1oo2 evaluation). The sensors can also be connected to an external sensor supply.
  • Page 92 Digital modules 8.3 SM 326; DI 24 x DC 24V WARNING To achieve SIL3/Cat.4/PLe using this wiring, you must use a suitably qualified sensor. Wiring scheme for application 5 with two-channel connection of one two-channel sensor opposite inputs One two-channel sensor is connected via two channels to each of two of the digital module for each process signal (1oo2 evaluation).
  • Page 93 Digital modules 8.3 SM 326; DI 24 x DC 24V WARNING To achieve SIL3/Cat.4/PLe using this wiring, you must use a suitably qualified sensor. Assignable parameters for application 5 Table 8- 6 Parameters for application 5 of SM 326; DI 24 x DC 24V Parameters Range of values in safety mode Type...
  • Page 94: Application 6: Safety Mode Sil3/cat.4/ple With High Availability (in S7 F/fh Systems Only)

    Digital modules 8.3 SM 326; DI 24 x DC 24V 8.3.8 Application 6: Safety mode SIL3/Cat.4/PLe with high availability (in S7 F/FH Systems only) Introduction Below are the wiring scheme and the parameter assignment of the SM 326; DI 24 x DC 24V digital module for application 6: Safety Mode SIL3/Cat.4/PLe with high availability.
  • Page 95 Digital modules 8.3 SM 326; DI 24 x DC 24V WARNING To achieve SIL3/Cat.4/PLe using this wiring, you must use a suitably qualified sensor. Wiring scheme for application 6 with nonequivalent two-channel connection of two redundant nonequivalent sensors Two redundant nonequivalent sensors are required per process signal. One nonequivalent opposite inputs sensor is connected to each of two of the digital module for each module...
  • Page 96 Digital modules 8.3 SM 326; DI 24 x DC 24V Wiring scheme for application 6 with two-channel connection of one two-channel sensor One two-channel sensor is connected via two channels to the two digital modules for each process signal (1oo2 evaluation). The sensors must be connected to an external sensor supply.
  • Page 97 Digital modules 8.3 SM 326; DI 24 x DC 24V Wiring scheme for application 6 with two-channel connection of two redundant two-channel sensors Two two-channel, redundant sensors are required per process signal. One sensor is opposite inputs connected via two channels to each of two of the digital module for each module (1oo2 evaluation).
  • Page 98 Digital modules 8.3 SM 326; DI 24 x DC 24V Assignable parameters for application 6 Table 8- 7 Parameters for application 6 of SM 326; DI 24 x DC 24V Parameters Range of values in safety mode Type Effective range "Parameters"...
  • Page 99: Diagnostic Messages Of Sm 326; Di 24 X Dc 24v

    Digital modules 8.3 SM 326; DI 24 x DC 24V 8.3.9 Diagnostic messages of SM 326; DI 24 x DC 24V Diagnostics using the LED display The F-SM indicates faults by means of its SF LED (group fault LED). The SF LED is activated when the F-SM generates a diagnostic message.
  • Page 100 Digital modules 8.3 SM 326; DI 24 x DC 24V Short-circuit to M and L+ Sequence of the internal short-circuit tests: ● Short-circuit to chassis ground is always tested, independent of the configuration. ● Short-circuit to L+ is only tested if "Sensor supply via module" and "Short-circuit test" are HW Config configured in Causes of the problem and corrective measures...
  • Page 101 Digital modules 8.3 SM 326; DI 24 x DC 24V Diagnostic message Possible causes of the problem Corrective measures Time monitoring activated Overload due to diagnostics request Reduce the number of (watchdog) (SFCs) diagnostics requests Electromagnetic interference has Eliminate the interference exceeded limits Defective module Replace the module...
  • Page 102: Technical Data - Sm 326; Di 24 X Dc 24v

    Digital modules 8.3 SM 326; DI 24 x DC 24V 8.3.10 Technical data - SM 326; DI 24 x DC 24V Overview Technical data Dimensions and Weight Dimensions W x H x D (mm) 80 x 125 x 120 Weight Approx.
  • Page 103 Digital modules 8.3 SM 326; DI 24 x DC 24V Technical data Number of simultaneously controllable inputs Horizontal installation  24 (with 24 V) Up to 40 °C 18 (with 28.8 V) Up to 60 °C Vertical installation  Up to 40 °C Electrical isolation Between channels and backplane bus ...
  • Page 104 Digital modules 8.3 SM 326; DI 24 x DC 24V Technical data Input current For "1" signal Typ. 10 mA  Input characteristic According to IEC 61131-2 Type 1 Connection of 2-wire BERO Supported if parameter "with short-circuit test" = "no"...
  • Page 105: Sm 326; Di 8 X Namur

    Digital modules 8.4 SM 326; DI 8 x NAMUR SM 326; DI 8 x NAMUR 8.4.1 Properties, front view, wiring diagram and block diagram Order number 6ES7326-1RF00-0AB0 Properties SM 326; DI 8 x NAMUR has the following properties: ● SIMATIC S7-Ex digital module suitable for connecting signals from the Ex area ●...
  • Page 106 Digital modules 8.4 SM 326; DI 8 x NAMUR Address assignment The following figure shows the assignment of channels to addresses. Figure 8-22 Address assignment for SM 326; DI 8 x NAMUR Front view Figure 8-23 Front view of SM 326; DI 8 x NAMUR Fail-safe signal modules Installation and Operating Manual, 01/2010, A5E00085586-10...
  • Page 107 Digital modules 8.4 SM 326; DI 8 x NAMUR Sensors supported The following illustration shows the supported sensors and their connection to the SM 326; DI 8 x NAMUR. NAMUR sensor monitoring for Connected contact monitored for  Wire break ...
  • Page 108 Digital modules 8.4 SM 326; DI 8 x NAMUR Channel numbers The channel numbers are used to uniquely identify the inputs and to assign channel-specific diagnostic messages. 1oo2 evaluation of the sensors reduces the number of channels by half. Figure 8-25 Channel numbers for SM 326;...
  • Page 109: Special Features When Wiring Sm 326; Di 8 X Namur For Hazardous Areas

    Digital modules 8.4 SM 326; DI 8 x NAMUR 8.4.2 Special Features when Wiring SM 326; DI 8 x NAMUR for Hazardous Areas Cable guide for SM 326; DI 8 x NAMUR in Hazardous Area Observe the following note when operating the SM 326; DI 8 x NAMUR in the potentially explosive area: Note The L+/M supply line terminals at the digital input module SM 326;...
  • Page 110 Digital modules 8.4 SM 326; DI 8 x NAMUR Front connector for SM 326; DI 8 x NAMUR in Hazardous Area To wire the 40-pin front connector: Step Graphic Description Wire the power supply lines to terminals 21 (L+) and 22 (M) and route these to the top.
  • Page 111 Digital modules 8.4 SM 326; DI 8 x NAMUR Step Graphic Description 2. b Cage-clamp terminals: Use the special key included instead of the screwdriver to install the cable guide. ② Cable guide cage-clamp terminals ③ Auxiliary wedge cage-clamp terminal Wire the process lines and route these to the bottom.
  • Page 112 To comply with thread length requirements at the modules: ● Always install the SM 326; DI 8 x NAMUR in the S7-300/ET 200M rack at the last position on the extreme right of the mounting rail; the width of SM 326; DI 8 x NAMUR automatically corrects the thread length to the next module on its left side.
  • Page 113: Cases Of Application Of Sm 326; Di X 8 Namur

    Digital modules 8.4 SM 326; DI 8 x NAMUR 8.4.3 Cases of application of SM 326; DI x 8 NAMUR Selecting the application The figure below helps you to select an application based on availability and fail-safe operation requirements. The next pages provide information on the module wiring for specific STEP 7 S7 Distributed Safety S7 F...
  • Page 114: Application 1: Standard Mode And Application 3: Safety Mode Sil 2 (category 3)

    Digital modules 8.4 SM 326; DI 8 x NAMUR 8.4.4 Application 1: standard mode and application 3: safety mode SIL 2 (Category 3) Introduction Below are the wiring scheme and the parameter assignment of SM 326; DI 8 x NAMUR for ●...
  • Page 115: Application 2: Standard Mode With High Availability And Application 4: Safety Mode Sil 2 (category 3) With High Availability (only In S7 F/fh Systems)

    Digital modules 8.4 SM 326; DI 8 x NAMUR 8.4.5 Application 2: standard mode with high availability and application 4: safety mode SIL 2 (Category 3) with high availability (only in S7 F/FH Systems) Introduction Below are the wiring scheme and the parameter assignment of SM 326; DI 8 x NAMUR for ●...
  • Page 116 Digital modules 8.4 SM 326; DI 8 x NAMUR Assignable parameters for applications 2 and 4 Table 8- 11 Parameters SM 326; DI 8 x NAMUR for applications 2 and 4 Parameters Range of values in Type Effective range Safety mode Standard mode "Inputs"...
  • Page 117: Application 5: Safety Mode Sil3/cat.4/ple

    Digital modules 8.4 SM 326; DI 8 x NAMUR 8.4.6 Application 5: Safety mode SIL3/Cat.4/PLe Introduction Below are the wiring scheme and the parameter assignment of SM 326; DI 8 x NAMUR for application 5: Safety mode SIL3/Cat.4/PLe. Diagnostic messages, possible causes of the problem and their corrective measures are found in tables in the chapter "Diagnostic Messages for SM 326;...
  • Page 118 Digital modules 8.4 SM 326; DI 8 x NAMUR Assignable parameters for application 5 Table 8- 12 Parameters for application 5 of SM 326; DI 8 x NAMUR Parameters Range of values in safety mode Type Effective range "Inputs" tab Enable diagnostic Activated/deactivated Static...
  • Page 119: Application 6: Safety Mode Sil3/cat.4/ple With High Availability (in S7 F/fh Systems Only)

    Digital modules 8.4 SM 326; DI 8 x NAMUR 8.4.7 Application 6: Safety mode SIL3/Cat.4/PLe with high availability (in S7 F/FH Systems only) Introduction Below are the wiring scheme and the parameter assignment of SM 326; DI 8 x NAMUR for application 6: Safety Mode SIL3/Cat.4/PLe with high availability.
  • Page 120 Digital modules 8.4 SM 326; DI 8 x NAMUR Assignable parameters for application 6 Table 8- 13 Parameters for application 6 of SM 326; DI 8 x NAMUR Parameters Range of values in safety mode Type Effective range "Inputs" tab Enable diagnostic Activated/deactivated Static...
  • Page 121: Diagnostic Messages For Sm 326; Di 8 X Namur

    Digital modules 8.4 SM 326; DI 8 x NAMUR 8.4.8 Diagnostic Messages for SM 326; DI 8 x NAMUR Possible diagnostic messages The following table provides an overview of the diagnostic messages for SM 326; DI 8 x NAMUR. Diagnostic messages are assigned either to a channel or to the entire module. Some diagnostic messages occur only in certain applications.
  • Page 122 Digital modules 8.4 SM 326; DI 8 x NAMUR Causes of the problem and corrective measures The table below shows possible causes of the problem and appropriate corrective measures for the individual diagnostic messages of SM 326, DI 8 x NAMUR. Table 8- 15 Diagnostic messages and associated corrective measures for SM 326;...
  • Page 123 Digital modules 8.4 SM 326; DI 8 x NAMUR Diagnostic message Possible causes of the problem Corrective measures Internal supply voltage of Internal fault at the L+ supply voltage Replace the module the module failed Time monitoring activated Overload due to diagnostics request Reduce the number of (watchdog) (SFCs)
  • Page 124: Technical Data - Sm 326; Di 8 X Namur

    Digital modules 8.4 SM 326; DI 8 x NAMUR 8.4.9 Technical data - SM 326; DI 8 x NAMUR Overview Technical data Dimensions and Weight Dimensions W x H x D (mm) 80 x 125 x 120 Weight Approx. 482 g Module-Specific Specifications Number of inputs Single-channel...
  • Page 125 Digital modules 8.4 SM 326; DI 8 x NAMUR Technical data Electrical isolation Between channels and backplane bus  Between channels and the power supply of  the electronics Between channels  Permitted potential difference Between different circuits [Ex] 60 V DC ...
  • Page 126 Digital modules 8.4 SM 326; DI 8 x NAMUR Technical data Sensor selection data Sensor In accordance with DIN 19234 or NAMUR Input current For "0" signal 0.35 to 1.2 mA  For "1" signal 2.1 to 7 mA  Time, Frequency Internal signal preparation time (without input Typ.
  • Page 127: Sm 326; Do 8 X Dc 24v/2a Pm

    10 years and a mean time to repair of 100 hours. Note You can install the SM 326; DO 8 x DC 24V/2A PM centrally with all F-CPUs of the S7-300 spectrum but  CPU 315F-2 DP as of order number 6ES7315-6FF01-0AB0only , firmware version V2.0.9 ...
  • Page 128 Digital modules 8.5 SM 326; DO 8 x DC 24V/2A PM Address assignment The following figure shows the assignment of channels to addresses. Figure 8-32 Address assignment for SM 326; DO 8 x DC 24V/2A PM Front view Figure 8-33 Front view of the SM 326;...
  • Page 129 Digital modules 8.5 SM 326; DO 8 x DC 24V/2A PM Wiring and block diagram The following figure shows the wiring and block diagram of SM 326; DO 8 x DC 24V/2A PM. Figure 8-34 Wiring and block diagram of SM 326; DO 8 x DC 24V/2A PM Channel numbers The channel numbers are used to identify the outputs and to assign channel-specific diagnostic messages.
  • Page 130: Sm 326; Do 8 X Dc 24v/2a Pm Applications

    Digital modules 8.5 SM 326; DO 8 x DC 24V/2A PM 8.5.2 SM 326; DO 8 x DC 24V/2A PM applications Selecting the application The figure below helps you to select an application based on availability and fail-safe operation requirements. The next pages provide information on the module wiring for a STEP 7 S7 Distributed Safety specific application, and on the parameters to set in...
  • Page 131: Application 1: Safety Mode Sil2/cat.3/pld And Application 2: Safety Mode

    Digital modules 8.5 SM 326; DO 8 x DC 24V/2A PM 8.5.3 Application 1: Safety Mode SIL2/Cat.3/PLd and application 2: Safety mode SIL3/Cat.4/PLe Introduction Below are the wiring scheme and the parameter assignment of SM 326; DO 8 x DC 24V/2A PM for ●...
  • Page 132 Digital modules 8.5 SM 326; DO 8 x DC 24V/2A PM Wiring two relays to one digital output The fail-safe digital output is capable of controlling two relays. Note the following conditions: ● Wire L+ and M of the relays to L+ and M of the module (same reference potential required).
  • Page 133: Diagnostic Messages Of Sm 326; Do 8 X Dc 24v/2a Pm

    Digital modules 8.5 SM 326; DO 8 x DC 24V/2A PM Prevention/control of cross circuits between the P and M switches To control cross circuits between P and M switches of a fail-safe digital output, we recommend the following wiring variant: Figure 8-39 Wiring scheme 2 relays at digital output of SM 326;...
  • Page 134 Digital modules 8.5 SM 326; DO 8 x DC 24V/2A PM Possible diagnostic messages The following table provides an overview of the diagnostic messages for SM 326; DO 8 x DC 24V/2A PM. Diagnostic messages are assigned either to a channel or to the entire module. Table 8- 17 Diagnostic messages of SM 326;...
  • Page 135 Digital modules 8.5 SM 326; DO 8 x DC 24V/2A PM Causes of the problem and corrective measures The table below shows the possible causes of the problem and associated corrective measures for the individual diagnostic messages of the SM 326, DO 8 x DC 24V/2A PM. Table 8- 18 Diagnostic messages and associated corrective measures for SM 326;...
  • Page 136 Digital modules 8.5 SM 326; DO 8 x DC 24V/2A PM Diagnostic Error detection Possible causes of the Corrective measures message problem Internal supply General Internal fault at supply voltage Replace the module voltage of the module failed Module parameters General No parameters transferred to Assign new module...
  • Page 137 Digital modules 8.5 SM 326; DO 8 x DC 24V/2A PM Diagnostic Error detection Possible causes of the Corrective measures message problem Parameter General Error in dynamic parameter Check the parameter assignment error reassignment assignment in the user (with specification program.
  • Page 138: Technical Data - Sm 326; Do 8 X Dc 24v/2a Pm

    Digital modules 8.5 SM 326; DO 8 x DC 24V/2A PM 8.5.5 Technical data - SM 326; DO 8 x DC 24V/2A PM Overview Technical data Dimensions and Weight Dimensions W x H x D (mm) 80 x 125 x 120 Weight Approx.
  • Page 139 Digital modules 8.5 SM 326; DO 8 x DC 24V/2A PM Technical data Electrical isolation Between channels and backplane bus  Between channels and the power supply of  the electronics Between channels  In groups of Maximum potential difference 75 V DC between different circuits 60 V AC...
  • Page 140 Digital modules 8.5 SM 326; DO 8 x DC 24V/2A PM Technical data Internal limit of the inductive shutdown voltage Typical L+ (-33 V) Short-circuit protection of output Yes, electronic Response threshold 2.6 to 4.5 A  Actuator timing requirements Actuator must not react within dark period <...
  • Page 141: Sm 326; Do 10 X Dc 24v/2a (6es7326-2bf01-0ab0)

    Digital modules 8.6 SM 326; DO 10 x DC 24V/2A (6ES7326-2BF01-0AB0) SM 326; DO 10 x DC 24V/2A (6ES7326-2BF01-0AB0) 8.6.1 Properties, front view, wiring diagram and block diagram Order number 6ES7326-2BF01-0AB0 Properties SM 326; DO 10 x DC 24V/2A has the following properties: ●...
  • Page 142 Digital modules 8.6 SM 326; DO 10 x DC 24V/2A (6ES7326-2BF01-0AB0) Redundant output signals WARNING An output with series diode can be used for redundant control of an actuator. Redundant control is supported for two different modules and without an external circuit. The two signal modules must be connected to the same reference potential (M).
  • Page 143 Digital modules 8.6 SM 326; DO 10 x DC 24V/2A (6ES7326-2BF01-0AB0) Front view Figure 8-41 Front view of SM 326; DO 10 x DC 24V/2A Fail-safe signal modules Installation and Operating Manual, 01/2010, A5E00085586-10...
  • Page 144 Digital modules 8.6 SM 326; DO 10 x DC 24V/2A (6ES7326-2BF01-0AB0) Wiring and block diagram The following figure shows the the wiring and block diagram of SM 326; DO 10 x DC 24V/2A. Figure 8-42 Wiring and block diagram of SM 326; DO 10 x DC 24V/2A The potential groups 1L+, 2L+ and 3L+ can be supplied by separated power supply units but also by one common power supply unit.
  • Page 145: Sm 326; Do 10 X Dc 24v/2a Applications

    Digital modules 8.6 SM 326; DO 10 x DC 24V/2A (6ES7326-2BF01-0AB0) 8.6.2 SM 326; DO 10 x DC 24V/2A applications Selecting the application The figure below helps you to select an application based on availability and fail-safe operation requirements. The next pages provide information on the module wiring for a STEP 7 S7 Distributed Safety specific application, and on the parameters to set in...
  • Page 146: Application 1: Standard Mode, Application 3: Safety Mode Sil2/cat.3/pld And Application 5: Safety Mode Sil3/cat.4/ple

    Digital modules 8.6 SM 326; DO 10 x DC 24V/2A (6ES7326-2BF01-0AB0) 8.6.3 Application 1: Standard mode, application 3: Safety Mode SIL2/Cat.3/PLd and application 5: Safety mode SIL3/Cat.4/PLe Introduction Below are the wiring scheme and the parameter assignment of SM 326; DO 10 x DC 24V/2A ●...
  • Page 147 Digital modules 8.6 SM 326; DO 10 x DC 24V/2A (6ES7326-2BF01-0AB0) Connecting two actuators to one digital output The fail-safe digital output is capable of switching two actuators. The following conditions have to be met: ● Wire L+ and M of the actuators to 2L+ and 2M of the module (same reference potential required).
  • Page 148 Digital modules 8.6 SM 326; DO 10 x DC 24V/2A (6ES7326-2BF01-0AB0) Assignable parameters for applications 1, 3 and 5 Table 8- 19 Parameters of the SM 326; DO 10 x DC 24V/2A for applications 1, 3 and 5 Parameters Range of values Type Effective range...
  • Page 149: Application 2: Standard Mode With High Availability, Application 4: Safety Mode Sil2/cat.3/pld With High Availability And Application 6: Safety Mode Sil3/cat.4/ple With High Availability (in S7 F/fh Systems Only)

    Digital modules 8.6 SM 326; DO 10 x DC 24V/2A (6ES7326-2BF01-0AB0) 8.6.4 Application 2: standard mode with high availability, application 4: Safety Mode SIL2/Cat.3/PLd with high availability and application 6: Safety mode SIL3/Cat.4/PLe with high availability (in S7 F/FH Systems only) Introduction Below are the wiring scheme and the parameter assignment of SM 326;...
  • Page 150 Digital modules 8.6 SM 326; DO 10 x DC 24V/2A (6ES7326-2BF01-0AB0) Assignable parameters for applications 2, 4 and 6 Table 8- 20 Parameters of the SM 326; DO 10 x 24V/2A for applications 2, 4 and 6 Parameters Range of values Type Effective range Safety mode...
  • Page 151: Parallel Connection Of Two Outputs For Dark Period Suppression

    Digital modules 8.6 SM 326; DO 10 x DC 24V/2A (6ES7326-2BF01-0AB0) 8.6.5 Parallel Connection of Two Outputs for Dark Period Suppression Applications All applications (3, 4, 5 and 6) support parallel operation of two outputs for dark period suppression in safety mode. Wiring scheme opposite outputs Interconnect two...
  • Page 152: Diagnostics Messages Of Sm 326; Do 10 X Dc 24v/2a

    Digital modules 8.6 SM 326; DO 10 x DC 24V/2A (6ES7326-2BF01-0AB0) 8.6.6 Diagnostics messages of SM 326; DO 10 x DC 24V/2A Possible diagnostic messages The following table provides an overview of the diagnostic messages for SM 326; DO 10 x DC 24V/2A. Diagnostic messages are assigned either to a channel or to the entire module.
  • Page 153 Digital modules 8.6 SM 326; DO 10 x DC 24V/2A (6ES7326-2BF01-0AB0) Causes of the problem and corrective measures The table below shows possible causes of the problem and appropriate corrective measures for the individual diagnostic messages of SM 326, DO 10 x DC 24V/2A. Table 8- 22 Diagnostic messages and associated corrective measures for SM 326;...
  • Page 154 Digital modules 8.6 SM 326; DO 10 x DC 24V/2A (6ES7326-2BF01-0AB0) Diagnostic message Error detection Possible causes of the problem Corrective measures Communication General Error in communication between Check the PROFIBUS error the CPU and the module, for connection example, due to defective Eliminate the PROFIBUS connection or interference...
  • Page 155 Digital modules 8.6 SM 326; DO 10 x DC 24V/2A (6ES7326-2BF01-0AB0) Diagnostic message Error detection Possible causes of the problem Corrective measures CRC signature error General CRC signature error during Eliminate the communication between the CPU interference and the module has occurred, for example, due to electromagnetic interference in excess, faults during sign-of-life monitoring error, in case...
  • Page 156 Digital modules 8.6 SM 326; DO 10 x DC 24V/2A (6ES7326-2BF01-0AB0) Incorrect diagnostics of a wire break at the redundant digital output modules Redundant operation of fail-safe output modules SM 326; DO 10 x DC 24V/2A can result in the following behavior in case of an error: In addition to reporting a wire break and the corresponding faulty channel, the module also reports faults at one or several other channels if operating withdifferent load circuits.
  • Page 157: Technical Data - Sm 326; Do 10 X Dc 24v/2a

    Digital modules 8.6 SM 326; DO 10 x DC 24V/2A (6ES7326-2BF01-0AB0) Faulty diagnostics in case of short-circuit When the fail-safe digital output module SM 326; DO 10 x DC 24V/2A detects a short-circuit to L+ at a channel, or a short-circuit between channels which carry different signals, it generates a diagnostic interrupt to report and passivate the faulty channel, including all other channels in the section which contain this channel.
  • Page 158 Digital modules 8.6 SM 326; DO 10 x DC 24V/2A (6ES7326-2BF01-0AB0) Technical data Voltages, Currents, Potentials Rated supply voltage of the electronics 1L+ 24 V DC Reverse polarity protection  Rated load voltage 2L+/3L+ 24 V DC Reverse polarity protection ...
  • Page 159 Digital modules 8.6 SM 326; DO 10 x DC 24V/2A (6ES7326-2BF01-0AB0) Technical data Actuator selection data Output voltage For "1" signal  Without series diode Minimum L+ (-1.0 V) With series diode Minimum L+ (-1.8 V) Output current For "1" signal ...
  • Page 160 Digital modules 8.6 SM 326; DO 10 x DC 24V/2A (6ES7326-2BF01-0AB0) Technical data Actuator timing requirements Actuator must not respond if: Dark period < 1 ms  Light period < 1 ms  (refer to chapter "Sensor and Actuator Requirements for F-SMs in Safety Mode (Page 47)") Time, Frequency Internal preparation time for...
  • Page 161: Sm 326; F-do 10 X Dc 24v/2a Pp (6es7326-2bf10-0ab0)

    Digital modules 8.7 SM 326; F-DO 10 x DC 24V/2A PP (6ES7326-2BF10-0AB0) SM 326; F-DO 10 x DC 24V/2A PP (6ES7326-2BF10-0AB0) 8.7.1 Properties, front view, wiring diagram and block diagram Order number 6ES7326-2BF10-0AB0 Properties SM 326; F-DO 10 x DC 24V/2A PP has the following properties: ●...
  • Page 162 Digital modules 8.7 SM 326; F-DO 10 x DC 24V/2A PP (6ES7326-2BF10-0AB0) "Keep last valid value" parameter setting WARNING If "Keep last valid value" has been assigned, the last valid process value 0 1 will be retained with events such as abort of PROFIsafe communication or F-CPU stop. For more information, refer to the section entitled "Fault reactions in safety mode with parameter setting "Keep last valid value"...
  • Page 163 Digital modules 8.7 SM 326; F-DO 10 x DC 24V/2A PP (6ES7326-2BF10-0AB0) Front view Figure 8-51 Front view of SM 326; F-DO 10 x DC 24V/2A PP Fail-safe signal modules Installation and Operating Manual, 01/2010, A5E00085586-10...
  • Page 164 Digital modules 8.7 SM 326; F-DO 10 x DC 24V/2A PP (6ES7326-2BF10-0AB0) Wiring and block diagram The following figure shows the wiring and block diagram of SM 326; F-DO 10 x DC 24V/2A Figure 8-52 Wiring and block diagram of SM 326; F-DO 10 x DC 24V/2A PP The potential groups 1L+, 2L+ and 3L+ can be supplied by separated power supply units but also by one common power supply unit.
  • Page 165: Sm 326; F-do 10 X Dc 24v/2a Pp Applications

    Digital modules 8.7 SM 326; F-DO 10 x DC 24V/2A PP (6ES7326-2BF10-0AB0) 8.7.2 SM 326; F-DO 10 x DC 24V/2A PP applications Selecting the application The figure below helps you to select an application based on availability and fail-safe operation requirements. The next pages provide information on the module wiring for a STEP 7 S7 Distributed Safety specific application, and on the parameters to set in...
  • Page 166: Applications 1 To 4

    Digital modules 8.7 SM 326; F-DO 10 x DC 24V/2A PP (6ES7326-2BF10-0AB0) Figure 8-56 Dark test The typical break between two test pulses is 0.5 seconds. There can be another test pulse ① in between. The gap between the first test pulse and the additional test pulse is one module cycle.
  • Page 167: Application 5: Safety Mode Sil3/cat.4/ple

    Digital modules 8.7 SM 326; F-DO 10 x DC 24V/2A PP (6ES7326-2BF10-0AB0) 8.7.4 Application 5: Safety mode SIL3/Cat.4/PLe Introduction Below are the wiring scheme and the parameter assignment of SM 326; F-DO 10 x DC 24V/2A PP for ● Application 5: Safety mode SIL3/Cat.4/PLe. Diagnostic messages, possible causes of the problem and their corrective measures are found in tables in the chapter "Diagnostic messages SM 326;...
  • Page 168 Digital modules 8.7 SM 326; F-DO 10 x DC 24V/2A PP (6ES7326-2BF10-0AB0) Connecting two actuators to one digital output The fail-safe digital output is capable of switching two actuators. The following conditions have to be met: ● Wire L+ and M of the actuators to 2L+ and 2M of the module (same reference potential required).
  • Page 169: Application 5.1: Wiring Two Outputs In Parallel For Dark Period Suppression

    Digital modules 8.7 SM 326; F-DO 10 x DC 24V/2A PP (6ES7326-2BF10-0AB0) 8.7.5 Application 5.1: Wiring two outputs in parallel for dark period suppression Applications Parallel operation of two outputs for dark period suppression is possible for all applications in safety mode (application 5).
  • Page 170 Digital modules 8.7 SM 326; F-DO 10 x DC 24V/2A PP (6ES7326-2BF10-0AB0) Wiring scheme opposite outputs Interconnect two with assigned redundancy to form a single output. The parallel circuit in combination with an internal test coordination between the outputs 0 to 4 and 5 to 9 suppresses the "0"...
  • Page 171: Application 6: Safety Mode Sil3/cat.4/ple With High Availability (in S7 F/fh Systems Only)

    Digital modules 8.7 SM 326; F-DO 10 x DC 24V/2A PP (6ES7326-2BF10-0AB0) Parameters Range of values Type Effective range Diagnostics: Wire break Activated/deactivated Static Channel Activated light test Activated/deactivated Static Channel Max. time for light test (ms) 0.6 ms to 5 ms Static Channel Max.
  • Page 172 Digital modules 8.7 SM 326; F-DO 10 x DC 24V/2A PP (6ES7326-2BF10-0AB0) Wiring scheme of application 6 Each process signal requires one actuator which is controlled redundantly by the two digital modules. The load voltage supply is wired to terminals 2L+/2M, 3L+/3M of the digital module. Figure 8-60 Wiring scheme of the SM 326;...
  • Page 173: Diagnostic Messages Sm 326; F-do 10 X Dc 24v/2a Pp

    Digital modules 8.7 SM 326; F-DO 10 x DC 24V/2A PP (6ES7326-2BF10-0AB0) Assignable parameters for application 6 Table 8- 24 Parameters for application 6 of SM 326; F-DO 10 x 24V/2A PP Parameters Range of values Type Effective range "Parameters" tab Mode of operation Safety mode Static...
  • Page 174 Digital modules 8.7 SM 326; F-DO 10 x DC 24V/2A PP (6ES7326-2BF10-0AB0) Possible diagnostic messages The following table provides an overview of the diagnostic messages for SM 326; F- DO 10 x DC 24V/2A PP. Diagnostic messages are assigned either to a channel or to the entire module. Some diagnostic messages occur only in certain applications.
  • Page 175 Digital modules 8.7 SM 326; F-DO 10 x DC 24V/2A PP (6ES7326-2BF10-0AB0) Causes of the problem and corrective measures The table below shows possible causes of the problem and appropriate corrective measures for the individual diagnostic messages of SM 326, F-DO 10 x DC 24V/2A PP. Table 8- 26 Diagnostic messages and associated corrective measures for SM 326;...
  • Page 176 Digital modules 8.7 SM 326; F-DO 10 x DC 24V/2A PP (6ES7326-2BF10-0AB0) Diagnostic message Error detection Possible causes of the problem Corrective measures Time monitoring general Overload due to diagnostics Reduce the number of activated request (SFCs) diagnostics requests (watchdog) Electromagnetic interference has Eliminate the exceeded limits...
  • Page 177 Digital modules 8.7 SM 326; F-DO 10 x DC 24V/2A PP (6ES7326-2BF10-0AB0) Diagnostic message Error detection Possible causes of the problem Corrective measures Defective load general Load voltage 2L+, 3L not Connect 2L+ and 3L+ voltage or load connected voltage not Load voltage external error Replace the module connected...
  • Page 178: Technical Data - Sm 326; F-do 10 X Dc 24v/2a Pp

    Digital modules 8.7 SM 326; F-DO 10 x DC 24V/2A PP (6ES7326-2BF10-0AB0) 8.7.8 Technical data - SM 326; F-DO 10 x DC 24V/2A PP Overview Technical data Dimensions and Weight Dimensions W x H x D (mm) 40 x 125 x 120 Weight ca.
  • Page 179 Digital modules 8.7 SM 326; F-DO 10 x DC 24V/2A PP (6ES7326-2BF10-0AB0) Technical data Electrical isolation Between channels and backplane bus  Between channels and the power supply of the  electronics Between channels  In groups of Permitted potential difference 75 V DC Between different circuits 60 V AC...
  • Page 180 Digital modules 8.7 SM 326; F-DO 10 x DC 24V/2A PP (6ES7326-2BF10-0AB0) Technical data Switching frequency With resistive load 25 Hz symmetrical, maximum  with inductive load (see chapter "Switching 25 Hz symmetrical, maximum  capacitive and inductive loads (Page 327)") With inductive load in accordance with IEC 60947-5- 0,5 Hz symmetrical, maximum ...
  • Page 181: Analog Modules

    Analog modules Introduction In this chapter Two fail-safe, redundancy-capable analog modules of the S7-300 module line are available for connecting analog sensors/encoders: ● the SM 336; AI 6 x 13Bit, ● the SM 336; F-AI 6 x 0/4 ... 20 mA HART.
  • Page 182: Sm 336; Ai 6 X 13 Bit

    Analog modules 9.2 SM 336; AI 6 x 13 Bit SM 336; AI 6 x 13 Bit 9.2.1 Analog value representation Measured value ranges Table 9- 1 Measured value ranges of SM 336; AI 6 x 13Bit Measuring range Unit Range 0 mA to 20 4 mA to 20...
  • Page 183 Analog modules 9.2 SM 336; AI 6 x 13 Bit Wire-break check and underflow check in the range 4 to 20 mA In the range 4 to 20 mA, a check is made to determine whether wire-break check is assigned. S7 F/FH ●...
  • Page 184: Properties, Front View, Wiring Diagram And Block Diagram

    Analog modules 9.2 SM 336; AI 6 x 13 Bit 9.2.2 Properties, front view, wiring diagram and block diagram Order number 6ES7336-1HE00-0AB0 Properties SM 336; AI 6 x 13Bit has the following properties: ● 6 analog inputs with electrical isolation between channels and the backplane bus ●...
  • Page 185 Analog modules 9.2 SM 336; AI 6 x 13 Bit Address assignment The following figure shows the assignment of channels to addresses. Figure 9-1 Address assignment for SM 336; AI 6 x 13Bit Front view Figure 9-2 Front view of SM 336; AI 6 x 13Bit Fail-safe signal modules Installation and Operating Manual, 01/2010, A5E00085586-10...
  • Page 186 Analog modules 9.2 SM 336; AI 6 x 13 Bit Wiring and block diagram The following figure shows the the wiring and block diagram of SM 336; AI 6 x 13Bit. The internal circuitry of the connections on the left side of the figure correspond to the circuitry of the connections on the right.
  • Page 187 Analog modules 9.2 SM 336; AI 6 x 13 Bit Sensor supply WARNING Voltage dips of the power supply are not buffered by the module and, thus, affect the sensor supply. This can cause the measured value to be false. You can avoid voltage dips by using a voltage supply according to the NAMUR recommendation (see Chapter "...
  • Page 188 Analog modules 9.2 SM 336; AI 6 x 13 Bit WARNING The stability of the external sensor supply must conform to the desired safety requirement class SIL 2, 3. To ensure that the sensor functions problem-free, we recommend one of the following options: ...
  • Page 189 Analog modules 9.2 SM 336; AI 6 x 13 Bit Improving current measuring precision at channels 0 through 3 of the analog input module It is advisable to interconnect unused voltage inputs with the corresponding current input when using channels 0 to 3 of SM 336; AI 6 x 13Bit for current measurements. See the figure below.
  • Page 190: Applications Of Sm 336; Ai 6 X 13 Bit

    Analog modules 9.2 SM 336; AI 6 x 13 Bit 9.2.3 Applications of SM 336; AI 6 x 13 Bit Selecting the application The figure below helps you to select an application based on availability and fail-safe operation requirements. The next pages provide information on the module wiring and STEP 7 parameter settings in Figure 9-9...
  • Page 191: ● Application 1: Standard Mode

    Analog modules 9.2 SM 336; AI 6 x 13 Bit Wiring schemes Three wiring schemes are available for each application, depending on the type of measurement. Table 9- 4 Wiring scheme of SM 336; AI 6 x 13 Bit Wiring scheme Measurement type Range Channels...
  • Page 192 Analog modules 9.2 SM 336; AI 6 x 13 Bit Wiring scheme A, current measurement 4 to 20 mA with 2-wire transducer for application 1 You can interconnect six process signals with an analog module. Sensor supply Vs is provided by the analog module for 6 channels. The sensors can also be connected to an External sensor supply, 2-wire transducer for external sensor supply (see figure SM 336;...
  • Page 193 Analog modules 9.2 SM 336; AI 6 x 13 Bit Wiring scheme B, current measurement 0 to 20 mA with 4-wire transducer for application 1 You can interconnect six process signals with an analog module. Sensor supply Vs is provided by the analog module for 6 channels. The sensors can also be connected to an External sensor supply, 4-wire transducer for external sensor supply (see figure SM 336;...
  • Page 194 Analog modules 9.2 SM 336; AI 6 x 13 Bit Wiring scheme C, voltage measurement 0 V to 10 V, for application 1 You can interconnect four process signals with an analog module. Sensor supply Vs is provided by the analog module for 4 channels. The sensors can also be connected to an External sensor supply, 4-wire transducer for external sensor supply (see figure SM 336;...
  • Page 195: Application 2: Standard Mode With High Availability

    Analog modules 9.2 SM 336; AI 6 x 13 Bit Assignable parameters for application 1 Table 9- 5 Parameters for application 1 of SM 336; AI 6 x 13Bit Parameters Range of values in standard mode Type Effective range "Inputs 1" tab Enable diagnostic Activated/deactivated Static...
  • Page 196 Analog modules 9.2 SM 336; AI 6 x 13 Bit Wiring scheme A, current measurement 4 to 20 mA with 2-wire transducer for application 2 You can interconnect six process signals with two redundant analog modules. Two sensors are connected via one channel to the two analog modules for each process signal. Sensor supply V is provided by the analog module for 6 channels.
  • Page 197 Analog modules 9.2 SM 336; AI 6 x 13 Bit Wiring scheme B, current measurement 0 to 20 mA with 4-wire transducer for application 2 You can interconnect six process signals with two redundant analog modules. Two sensors are connected via one channel to the two analog modules for each process signal. Sensor supply V is provided by the analog module for 6 channels.
  • Page 198 Analog modules 9.2 SM 336; AI 6 x 13 Bit Wiring scheme C, current measurement 0 to 10 V with 4-wire transducer for application 2 You can interconnect four process signals with two redundant analog modules. Two sensors are connected via one channel to the two analog modules for each process signal. Sensor supply V is provided by the analog module for 6 channels.
  • Page 199: Application 3: Safety Mode Sil2/cat.3/pld

    Analog modules 9.2 SM 336; AI 6 x 13 Bit Assignable parameters for application 2 Table 9- 6 Parameters for application 2 of SM 336; AI 6 x 13Bit Parameters Range of values in standard mode Type Effective range "Inputs 1" tab Enable diagnostic Yes/no Static...
  • Page 200 Analog modules 9.2 SM 336; AI 6 x 13 Bit Wiring scheme A, current measurement 4 to 20 mA with 2-wire transducer for application 3 You can interconnect six process signals with an analog module. Sensor supply V provided by the analog module for 6 channels. The sensors can also be connected to an External sensor supply, 2-wire transducer for external sensor supply (see figure SM 336;...
  • Page 201 Analog modules 9.2 SM 336; AI 6 x 13 Bit Wiring scheme B, current measurement 4 to 20 mA with 4-wire transducer for application 3 You can interconnect six process signals with an analog module. Sensor supply V provided by the analog module for 6 channels. The sensors can also be connected to an External sensor supply, 4-wire transducer for external sensor supply (see figure SM 336;...
  • Page 202: Application 4: Safety Mode Sil2/cat.3/pld With High Availability (in S7 F/fh Systems Only)

    Analog modules 9.2 SM 336; AI 6 x 13 Bit Assignable parameters for application 3 Table 9- 7 Parameters for application 3 of SM 336; AI 6 x 13Bit Parameters Range of values in safety mode Type Effective range "Inputs 1" tab Enable diagnostic Yes/no Static...
  • Page 203 Analog modules 9.2 SM 336; AI 6 x 13 Bit Wiring scheme A, current measurement 4 to 20 mA with 2-wire transducer for application 4 You can interconnect six process signals with two redundant analog modules. Two sensors are connected via one channel to the two analog modules for each process signal. Sensor supply V is provided by the analog module for 6 channels.
  • Page 204 Analog modules 9.2 SM 336; AI 6 x 13 Bit WARNING To achieve SIL3/Cat.4/PLe using this wiring, you must use a suitably qualified sensor. Fail-safe signal modules Installation and Operating Manual, 01/2010, A5E00085586-10...
  • Page 205 Analog modules 9.2 SM 336; AI 6 x 13 Bit Wiring scheme B, current measurement 4 to 20 mA with 4-wire transducer for application 4 You can interconnect six process signals with two redundant analog modules. Two sensors are connected via one channel to the two analog modules for each process signal. Sensor supply V is provided by the analog module for 6 channels.
  • Page 206: Application 5: Safety Mode Sil3/cat.4/ple

    Analog modules 9.2 SM 336; AI 6 x 13 Bit WARNING To achieve SIL3/Cat.4/PLe using this wiring, you must use a suitably qualified sensor. Assignable parameters for application 4 Table 9- 8 Parameters for application 4 of SM 336; AI 6 x 13Bit Parameters Range of values in safety mode Type...
  • Page 207 Analog modules 9.2 SM 336; AI 6 x 13 Bit Wiring scheme A, current measurement 4 to 20 mA with 2-wire transducer for application 5 You can interconnect six process signals with an analog module. Two redundant sensors are opposite inputs connected to two of the analog module for each process signal (1oo2 evaluation).
  • Page 208 Analog modules 9.2 SM 336; AI 6 x 13 Bit Wiring scheme B, current measurement 4 to 20 mA with 4-wire transducer for application 5 You can interconnect six process signals with an analog module. Two redundant sensors are opposite inputs connected to two of the analog module for each process signal (1oo2 evaluation).
  • Page 209 Analog modules 9.2 SM 336; AI 6 x 13 Bit Assignable parameters for application 5 Table 9- 9 Parameters for application 5 of SM 336; AI 6 x 13Bit Parameters Range of values in safety mode Type Effective range "Inputs 1" tab Enable diagnostic Activated/deactivated Static...
  • Page 210: Application 6: Safety Mode Sil3/cat.4/ple With High Availability (in S7 F/fh Systems Only)

    Analog modules 9.2 SM 336; AI 6 x 13 Bit 9.2.9 Application 6: Safety mode SIL3/Cat.4/PLe with high availability (in S7 F/FH Systems only) Introduction Below are the wiring schemes and the parameter assignment of SM 336; AI 6 x 13Bit for ●...
  • Page 211 Analog modules 9.2 SM 336; AI 6 x 13 Bit Wiring scheme A, current measurement 4 to 20 mA with 2-wire transducer for application 6 You can interconnect six process signals with two redundant analog modules. Four redundant sensors are required for each process signal. Two sensors are connected via two opposite inputs channels to two of the analog module for each module (1oo2 evaluation).
  • Page 212 Analog modules 9.2 SM 336; AI 6 x 13 Bit WARNING To achieve SIL3/Cat.4/PLe using this wiring, you must use a suitably qualified sensor. Fail-safe signal modules Installation and Operating Manual, 01/2010, A5E00085586-10...
  • Page 213 Analog modules 9.2 SM 336; AI 6 x 13 Bit Wiring scheme B, current measurement 4 to 20 mA with 4-wire transducer for application 6 You can interconnect six process signals with two redundant analog modules. Four redundant sensors are required for each process signal. Two sensors are connected via two opposite inputs channels to two of the analog module for each module (1oo2 evaluation).
  • Page 214 Analog modules 9.2 SM 336; AI 6 x 13 Bit WARNING To achieve SIL3/Cat.4/PLe using this wiring, you must use a suitably qualified sensor. Assignable parameters for application 6 Table 9- 10 Parameters for application 6 of SM 336; AI 6 x 13Bit Parameters Range of values in safety mode Type...
  • Page 215: Diagnostic Messages For Sm 336; Ai 6 X 13 Bit

    Analog modules 9.2 SM 336; AI 6 x 13 Bit Discrepancy analysis for fail-safe analog input modules If you have configured safety mode in accordance with SIL 3, you can configure a discrepancy time and an absolute tolerance window (as a % of the 4 mA to 20 mA measuring range) for each input of the analog input module.
  • Page 216 Analog modules 9.2 SM 336; AI 6 x 13 Bit Causes of the problem and corrective measures The table below shows possible causes of the problem and appropriate corrective measures for the individual diagnostic messages of SM 336; AI 6 x 13Bit. Table 9- 12 Diagnostic messages and associated corrective measures for SM 336;...
  • Page 217 Analog modules 9.2 SM 336; AI 6 x 13 Bit Diagnostic message Possible causes of the problem Corrective measures Communication error Error in communication between Check the PROFIBUS the CPU and the module, for connection example, due to defective Eliminate the interference PROFIBUS connection or electromagnetic interference in excess of limits.
  • Page 218: Technical Data - Sm 336; Ai 6 X 13bit

    Analog modules 9.2 SM 336; AI 6 x 13 Bit 9.2.11 Technical data - SM 336; AI 6 x 13Bit Overview Technical data Dimensions and Weight Dimensions W x H x D (mm) 80 x 125 x 120 Weight Approx. 480 g Module-Specific Specifications Number of inputs Assigned address area...
  • Page 219 Analog modules 9.2 SM 336; AI 6 x 13 Bit Technical data Permitted potential difference Between inputs and M 6.0 VDC  Between M and M 75 V DC, 60 V AC  intern Insulation test voltage 500V DC / 350V AC for 1min or 600V DC for 1s Current consumption From backplane bus...
  • Page 220 Analog modules 9.2 SM 336; AI 6 x 13 Bit Technical data Repeatability (in transient state at 25 °C, relative to ± 0,05 % input range) Operational limit (across the temperature range, relative to input range) Current ± 0,48 % ...
  • Page 221 Analog modules 9.2 SM 336; AI 6 x 13 Bit Technical data Signal sensor connection For voltage measurement Possible  For current measurement Possible  As 4-wire transducer Possible  As 2-wire transducer Possible  Load of 2-wire transducer Max. 600 Ω ...
  • Page 222: Sm 336; F-ai 6 X 0/4

    , the fail-safe value 0 is provided in the PII for the safety program in place of 7FFF (for overflow) and 8000 (for underflow). See also the "S7-300 Automation System module data (http://support.automation.siemens.com/WW/view/en/8859629)" operating instructions. Fail-safe signal modules Installation and Operating Manual, 01/2010, A5E00085586-10...
  • Page 223 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Wire-break check in the range of 0 to 20 mA In the range 0 to 20 mA, a wire-break check is always performed: S7 F/FH Systems ● Wire break at < 0.4442 mA with 7FFF is reported and the fail-safe value will be output as configured at the input SUBS_V of the F channel driver.
  • Page 224: Properties, Front View, Wiring Diagram And Block Diagram

    Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART 9.3.2 Properties, front view, wiring diagram and block diagram Order number 6ES7336-4GE00-0AB0 Properties SM 336; F-AI 6 x 0/4 ... 20 mA HART has the following properties: ●...
  • Page 225 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Address assignment The following figure shows the assignment of channels to addresses. Figure 9-17 Address assignment for SM 336; F-AI 6 x 0/4 ... 20 mA HART Front view Figure 9-18 Front view SM336;...
  • Page 226 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Wiring and block diagram The following figure shows the the wiring and block diagram of SM 336; F-AI 6 x 0/4 ... 20 mA HART. The wiring and block diagrams of analog sensors for the different applications are shown in the next chapters.
  • Page 227 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Sensor supply WARNING Voltage dips of the power supply are not buffered by the module and, thus, affect the sensor supply. This can cause the measured value to be false. You can avoid voltage dips by using a voltage supply according to the NAMUR recommendation (see Chapter "...
  • Page 228 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART External sensor supply The figures in chapter "Applications of SM 336; F-AI 6 x 0/4 ... 20 mA HART (Page 229)" show how you can supply power to the sensors via an external sensor supply (for example, from another module).
  • Page 229: Applications Of Sm 336; F-ai 6 X 0/4

    Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART 9.3.3 Applications of SM 336; F-AI 6 x 0/4 ... 20 mA HART Selecting the application The figure below helps you to select an application based on availability and fail-safe operation requirements.
  • Page 230 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART WARNING If there is a short circuit from L+ to Mn+, the input resistors will be destroyed. You can avoid this problem through proper wiring and use of the internal sensor supply. When an external sensor supply is used, other suitable measures are necessary to protect the input resistors (e.g.
  • Page 231 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Wiring scheme A: 2-wire transducer, internal sensor supply Particularity: ● Short circuit between sensor supply voltage Vsn and Mn+ is handled. ● It is possible to detect an undervoltage at the transducer by reading back the sensor supply in the module.
  • Page 232 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Wiring scheme B: 2-wire transducer, external sensor supply Particularity: WARNING An undervoltage at the transducer cannot be detected, i.e., a transducer with undervoltage detection may be required. Note 1L+ and 2L+ can be fed from one power supply.
  • Page 233 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Wiring scheme C: 4-wire transducer, internal sensor supply Particularity: ● Short circuit between sensor supply voltage Vsn and Mn+ is handled. ● It is possible to detect an undervoltage at the transducer by reading back the sensor supply in the module.
  • Page 234 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Wiring scheme A: 4-wire transducer, external sensor supply Particularity: WARNING An undervoltage at the transducer cannot be detected, i.e., a transducer with undervoltage detection may be required. Note 1L+ and 2L+ can be fed from one power supply.
  • Page 235 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Wiring scheme E: 2-wire transducer, internal sensor supply with module redundancy Particularity: ● Short circuit between sensor supply voltage Vsn and Mn+ is handled. ● It is possible to detect an undervoltage at the transducer by reading back the sensor supply in the module.
  • Page 236 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Wiring scheme F: 2-wire transducer, external sensor supply with module redundancy Particularity: WARNING An undervoltage at the transducer cannot be detected, i.e., a transducer with undervoltage detection may be required. ●...
  • Page 237 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Wiring scheme G: 4-wire transducer, internal sensor supply with module redundancy Particularity: ● Short circuit between sensor supply voltage Vsn and Mn+ is handled. ● It is possible to detect an undervoltage at the transducer by reading back the sensor supply in the module.
  • Page 238 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Wiring scheme H: 4-wire transducer, external sensor supply with module redundancy WARNING An undervoltage at the transducer cannot be detected, i.e., a transducer with undervoltage detection may be required. ●...
  • Page 239: Applications And Wiring Schemes

    Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART 9.3.4 Applications and wiring schemes Applications The following applications are associated with the following wiring schemes: Application Wiring schemes 1oo1 evaluation 1oo1 evaluation, transducer not redundant, high availability 1oo2 evaluation 1oo2 evaluation, transducer via 1-channel 1oo2 evaluation, transducer via 1-channel, high-availability,...
  • Page 240 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART ● Determine the voltage drop at the sensor supply: = 0.5 V SensorSupply ● Determine the voltage drop (U ) at the longitudinal diode for disconnection of the Diode sensor supply: e.g., for BYV27-100...
  • Page 241: Applications 1 And 2

    For example, you could use the following Zener diodes: 5.6 V (1N4734A) and 6.2 V (1N4735A), or use MTA 6ES7650-1AH51-5XX0 with 6ES7650-1BB51-0XX0 and 6ES7650- 1BC51-0XX0 (see Manual " Marshalled Termination Assemblies ET 200M Remote I/O Modules (http://support.automation.siemens.com/WW/view/en/22091986) "). 9.3.5 Applications 1 and 2 Applications 1 and 2 Applications 1 and 2 are omitted because the module supports only safety mode.
  • Page 242 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Current measurement 0/4 to 20 mA with 2-wire and 4-wire transducer for application 3 Six process signals can be connected to a module in this interconnection variant. Sensor supply Vsn is provided by the module for 6 channels.
  • Page 243: Application 4: Safety Mode Sil3/cat.3/ple With High Availability (in S7 F/fh Systems Only)

    Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Assignable parameters for application 3 Table 9- 17 Parameters for application 3 of SM 336; F-AI 6 x 0/4 ... 20 mA HART Parameters Range of values in safety mode Type Effective range Diagnostic interrupt...
  • Page 244 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Current measurement 0/4 to 20 mA with 2-wire and 4-wire transducer, transducer not redundant, for application 4 Six process signals can be connected to two redundant modules in this interconnection variant.
  • Page 245 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Assignable parameters for application 4 Table 9- 18 Parameters for application 4 of SM 336; F-AI 6 x 0/4 ... 20 mA HART Parameters Range of values in safety mode Type Effective range Diagnostic interrupt...
  • Page 246: Application 5: Safety Mode Sil3/cat.4/ple

    Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART 9.3.8 Application 5: Safety mode SIL3/Cat.4/PLe Introduction Below are the wiring schemes and the parameter assignment of SM 336; F-AI 6 x 0/4 ... 20 mA HART for ●...
  • Page 247 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Current measurement 0/4 to 20 mA with 2-wire and 4-wire transducer, transducer via one channel, for application 5 Three process signals can be connected to a module in this interconnection variant. Sensor supply Vsn is provided by the module for 3 channels.
  • Page 248 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Assignable parameters for application 5 Table 9- 19 Parameters for application 5 of SM 336; F-AI 6 x 0/4 ... 20 mA HART Parameters Range of values in safety mode Type Effective range Diagnostic interrupt...
  • Page 249: Application 6: Safety Mode Sil3/cat.4/ple With High Availability (in S7 F/fh Systems Only)

    Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART 9.3.9 Application 6: Safety mode SIL3/Cat.4/PLe with high availability (in S7 F/FH Systems only) Introduction Below are the wiring scheme and the parameter assignment of SM 336; F-AI 6 x 0/4 ... 20 mA HART for ●...
  • Page 250 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART For information about the Zener diodes, refer to chapter "Calculation of the residual supply voltage at the transducer (Page 239)". WARNING To achieve SIL3/Cat.4/PLe using this wiring, you must use a suitably qualified sensor. Note You can supply the two F-SMs from two power supply units.
  • Page 251 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Discrepancy analysis for fail-safe analog input modules If you have configured 1oo2 evaluation, you can configure a discrepancy time and an absolute and a relative tolerance window for each channel pair of the module. In addition, configure the standard value (MIN = lower value / MAX = higher value) to be applied and transferred to the F-CPU.
  • Page 252: Application 7: Safety Mode Sil3/cat.4/ple

    Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART 9.3.10 Application 7: Safety mode SIL3/Cat.4/PLe Introduction Below are the wiring scheme and the parameter assignment of SM 336; F-AI 6 x 0/4 ... 20 mA HART for ●...
  • Page 253 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART WARNING To achieve SIL3/Cat.4/PLe using this wiring, you must use a suitably qualified sensor. Note SIMATIC PDM If you are using as the engineering tool for your HART field device, create a HART field device only for the channel with the lower channel number.
  • Page 254: Application 8: Safety Mode Sil3/cat.4/ple With High Availability (in S7 F/fh Systems Only)

    Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART 9.3.11 Application 8: Safety mode SIL3/Cat.4/PLe with high availability (in S7 F/FH Systems only) Introduction Below are the wiring scheme and the parameter assignment of SM 336; F-AI 6 x 0/4 ... 20 mA HART for ●...
  • Page 255 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART For information about the Zener diodes, refer to chapter "Calculation of the residual supply voltage at the transducer (Page 239)". WARNING To achieve SIL3/Cat.4/PLe using this wiring, you must use a suitably qualified sensor. Note SIMATIC PDM If you are using...
  • Page 256: Application 9: Safety Mode Sil3/cat.4/ple With Three Modules And High Availability (in S7 F/fh Systems Only)

    Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART 9.3.12 Application 9: Safety mode SIL3/Cat.4/PLe with three modules and high availability (in S7 F/FH Systems only) Introduction Below are the wiring scheme and the parameter assignment of SM 336;...
  • Page 257: Diagnostic Messages Of Sm 336; F-ai 6 X 0/4

    Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART WARNING To achieve SIL3/Cat.4/PLe using this wiring, you must use a suitably qualified sensor. Note 1L+, 2L+, and 3L+ can be fed from one power supply. The maximum permitted common mode voltage U must be observed.
  • Page 258 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Possible diagnostic messages The following table provides an overview of the diagnostic messages for SM 336; F-AI 6 x 0/4 ... 20 mA HART. Diagnostic messages are assigned either to a channel or to the entire module. Some diagnostic messages occur only in certain applications.
  • Page 259 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Causes of the problem and corrective measures The table below shows the possible causes of the problem and associated corrective measures for the individual diagnostic messages of the SM 336; F-AI 6 x 0/4 ... 20 mA HART.
  • Page 260 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Diagnostic message Possible causes of the problem Corrective measures EPROM error Excessive electromagnetic interference Eliminate the interference, and at times RAM error Switch the supply voltage of the F- ...
  • Page 261 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Diagnostic message Possible causes of the problem Corrective measures Overflow or underflow of the Use suitable sensor, Measuring range fallen below  measured value (see "Wire break check wiring (sensor polarity ...
  • Page 262 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Diagnostic message Possible causes of the problem Corrective measures Incorrect parameters in the HART HART: Analog output current  field device specified HART field device has simulation, ...
  • Page 263: Technical Data - Sm 336; F-ai 6 X 0/4

    Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART 9.3.14 Technical Data - SM 336; F-AI 6 x 0/4 ... 20 mA HART Overview Technical data Dimensions and Weight Dimensions W x H x D (mm) 40 ×...
  • Page 264 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Technical data Electrical isolation Between channels 0/1/2 and 3/4/5, backplane  bus, load voltage L+/sensor supply Vs0...5, shield Between channels 3/4/5 and 0/1/2, backplane  bus, load voltage L+/sensor supply Vs0...5, shield Between backplane bus and channels 0/1/2, ...
  • Page 265 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Technical data Level Time constant None 1 × conversion cycle time  Weak 4 × conversion cycle time  Medium 16 × conversion cycle time  Strong 64 ×...
  • Page 266 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Technical data Sensor supply output Number of outputs  Output voltage Loaded Minimum L+ (-0.5 V)  Output current Rated value 300 mA  Approved range 0 to 300 mA ...
  • Page 267 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Technical data Degree of severity 3 and higher External protective elements required Symmetrical (L+ to M) ± 1 kV; 1.2/50 μs  Asymmetrical (L+ to PE, M to PE) ±...
  • Page 268: Parameters Of Analog Input Module F-ai 6 X 0/4

    Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART 9.3.15 Parameters of analog input module F-AI 6 x 0/4 ... 20mA HART Table 9- 26 Parameters of module SM 331; F-AI 6 x 0/4...20mA HART Parameters Range of values Default Parameter...
  • Page 269: Setting Smoothing Of Analog Values

    Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART 9.3.15.1 Setting smoothing of analog values Setting smoothing of analog values HW Config You can set smoothing of analog values for this module in Using smoothing Smoothed analog values provide a reliable analog signal for further processing. WARNING The smoothing takes place as a result of averaging over the selected number of conversion cycles, e.g., 64.
  • Page 270 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Example The figure below shows the number of cycles, depending on the smoothing setting, after which the analog value is completely smoothed and available in the case of a unit step. The figure applies to all signal changes at the analog input.
  • Page 271: Parameter Assignment Of Discrepancy Analysis For 1oo2 Evaluation

    Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART 9.3.15.2 Parameter assignment of discrepancy analysis for 1oo2 evaluation Operating principle of discrepancy analysis A discrepancy analysis is performed when 1oo2 evaluation is assigned. An assignable tolerance window is formed around the process value that represents the instantaneous standard value (value that is signaled to the F-CPU).
  • Page 272 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART If the process value does not represent the standard value at an instant but is outside the tolerance window, a discrepancy exists. with Figure 9-40 Example of a relative tolerance window discrepancy (parameter assignment: standard value = MAX) The assigned discrepancy time starts as soon as a discrepancy is detected.
  • Page 273 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Configuring the discrepancy analysis parameters The following four parameters for the discrepancy analysis are assigned for each channel HW Config pair in ● Discrepancy time ● Standard value ●...
  • Page 274 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART "Tolerance window %, absolute" parameter You can calculate the absolute tolerance window using the following formula: Calculate the maximum deviation of the current using the following formula: With ●...
  • Page 275 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART "Tolerance window %, relative" parameter smoothed The tolerance window is calculated as a percentage of the process value that represents the MIN or MAX value (depending on the parameter assignment of the standard value) in this instant.
  • Page 276 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Combination of the "Tolerance window %, absolute" and "Tolerance window %, relative" parameters You can combine the "Tolerance window %, absolute" and "Tolerance window %, relative" parameters as needed. The combined tolerance window (shown in gray in the figure below) is the maximum of T and T T = MAX { T...
  • Page 277 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Example The following figure shows you the behavior of the discrepancy evaluation when standard value = MAX. The diagram above shows you the characteristic curve of the two process values. The dashed line represents the absolute tolerance range configured in this example.
  • Page 278: Deactivate One Channel Of A Channel Pair For 1oo1 Evaluation

    Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART 9.3.15.3 Deactivate one channel of a channel pair for 1oo1 evaluation If you want to use only one channel of a channel pair (for 1oo1 evaluation), connect the unused channel to a resistance.
  • Page 279: Principles Of Hart Operation

    Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART 9.3.16.3 Principles of HART operation Introduction The HART protocol describes the physical form of the transfer: ● Transmission procedures ● Message structure ● Data formats ● Commands HART signal The following figure shows the analog signal with the HART signal modulated on it (FSK technique).
  • Page 280 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART HART commands and parameters SIMATIC PDM You can use to set the parameters of the HART field devices via HART commands and read these out via HART replies. The HART commands and their parameters are divided into three groups with the following properties: ●...
  • Page 281: Integration Of The Hart Field Devices

    Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART 9.3.16.4 Integration of the HART field devices Use of The SM 336; F-AI 6 x 0/4 ... 20 mA HART can be used decentrally in an ET 200M for use of the HART function.
  • Page 282: Using Hart

    Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART 9.3.16.5 Using HART System environment for using HART To operate an intelligent field device with HART functionality, you require the following system environment: Current loop 4 - 20 mA via the analog module SM 336, F-AI 6 x 0/4 ... 20 mA HART. The module functions as a "master"...
  • Page 283: Hart For Safety-oriented Applications

    Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Transparent message data - Format transparent message data SIMATIC PDM The module supports the format. Using , you therefore have direct access to the HART field device for the commands and replies. Each module is equipped with a common HART modem for the 6 channels.
  • Page 284 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART The following parameters of "HART_Gate" can be assigned: ● "On": HART communication is enabled. ● "Can be switched": The HART communication can be activated and deactivated from the S7 Distributed Safety S7 F Systems safety program (...
  • Page 285 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Example of enabling HART communication in S7 F Systems S7 F Systems Figure 9-46 Example of enabling HART communication in Example of enabling HART communication in S7 Distributed Safety Network 1: Enable HART communication Comment: &...
  • Page 286 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART S7 Distributed Safety, For additional information about the F-I/O DB, refer to the Configuring and Programming manual. For additional information about the F_CH_AI F- S7 F/FH Systems, Configuring and Programming channel driver, refer to the manual.
  • Page 287: Data Record Interface And User Data

    Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART 9.3.17 Data record interface and user data 9.3.17.1 Overview of the data record interface and user data of the HART communication Introduction In this chapter you will find the specific data that you require for parameter assignment, STEP 7 diagnostics and HART communication if you go beyond the standard applications of or want to use your own configuration tool for HART communication.
  • Page 288: Diagnostic Data Records

    ● Read data record: SFC 52 "REDREC" ● Write data record: SFC 53 "WRREC" For more information about the SFCs, refer to the "System Software for S7 -300/400 System and Standard Functions (http://support.automation.siemens.com/WW/view/en/1214574)" manual. Overview of the user data The module has a user data area with the following content, which is provided similarly for channels 0 to 5: ●...
  • Page 289: Hart Communication Records

    Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART 9.3.17.3 HART communication records Transfer data records HART communication can be controlled by one client per channel. Each channel has a separate transfer area available. Each transfer area consists of the command and reply data records.
  • Page 290 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Structure of the command data record The figure below shows the command data record with which you can write a command to a client's transfer area. The HART analog module sends the command to the connected HART field device.
  • Page 291 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Structure of the reply data record The figure below shows the structure of the reply data record that contains the reply to the previous HART command and error or status. Figure 9-49 Reply data record of the HART analog modules Fail-safe signal modules...
  • Page 292 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Evaluation of the reply data If you have a current reply data record in front of you, you can carry out the following checks: ● By specifying "Last command", you ensure that the reply belongs to the command sent. ●...
  • Page 293 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Table 9- 30 HART protocol error in reply byte 2 for the reply from the field device to the module (error code) Error HART protocol error in byte 2 Meaning Unspecified error 0: Not specified...
  • Page 294: Parameter Records Of The Hart Channels

    Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART 9.3.17.4 Parameter records of the HART channels Structure of parameter data records 131 to 136 The figure below shows the structure of parameter data records 131 to 136 for HART channels 0 to 5.
  • Page 295: User Data Interface, Input Range (reading)

    You can read in the data of the user data area from the process image and evaluate it in your user program. For this purpose, see Chapter "F-I/O access" in the " S7 F/FH Systems Configuring and Programming (http://support.automation.siemens.com/WW/view/en/16537972) " or "S7 Distributed Safety Configuring and Programming (http://support.automation.siemens.com/WW/view/en/22099875)" manual...
  • Page 296 Analog modules 9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART Fail-safe signal modules Installation and Operating Manual, 01/2010, A5E00085586-10...
  • Page 297: Safety Protector

    When the safety protector is used, your station achieves the limit values for specified in the technical data using the overvoltage protection components specified in the "S7-300 CPU 31xC and CPU 31x: Hardware and Installation (http://support.automation.siemens.com/WW/view/en/13008499)" Operating Instructions only grounded if configured with reference potential.
  • Page 298 Safety protector 10.2 Properties, Front View, and Block Diagram Safety Integrity Level SIL 2/Cat. 3/PLd without safety protector It is required to install a safety protector if all components connected to PROFIBUS DP PELV for fail-safe signal are compliant with PELV requirements (refer to the chapter modules ) when operated for applications of safety class SIL2/Cat.3/PLd.
  • Page 299: Configuration Variants

    Configuration of S7-300/ET 200M with safety protector (no hot-swapping) The safety protector increases the width of S7-300/ET 200M by 40 mm. This setup still permits installation of eight to twelve signal modules. The example below shows a configuration with seven signal modules.
  • Page 300 Safety protector 10.3 Configuration Variants Note Measures to be taken for overvoltage protection in safety mode:  Always install the standard signal modules to the left of the safety protector; fail-safe signal modules are installed to the right of the safety protector. ...
  • Page 301 Safety protector 10.3 Configuration Variants Configuration of ET 200M with safety protector on the active backplane bus The bus module for the safety protector increases the width of ET 200M by 80 mm. You can still install eight to twelve signal modules. Note that you need the mounting rail for "Module replacement during operation"...
  • Page 302: Technical Specifications

    Safety protector 10.4 Technical Specifications 10.4 Technical Specifications Overview Technical data Dimensions and Weight Dimensions W x H x D (mm) 40 x 125 x 120 Weight approx. 230 g Module-Specific Specifications Front connectors 20-pin Voltages, currents, potentials Power loss of the module none Fail-safe signal modules Installation and Operating Manual, 01/2010, A5E00085586-10...
  • Page 303: Diagnostics Data Of The Signal Modules

    A detailed description of the structure of the diagnostic message frame and the position of the interrupt section in accordance with the PROFIBUS standard is available in the Commissioning and Diagnostics chapter of the "ET 200M Distributed I/O Device (http://support.automation.siemens.com/WW/view/en/1142798)" manual. Fail-safe signal modules Installation and Operating Manual, 01/2010, A5E00085586-10...
  • Page 304 Diagnostics data of the signal modules A.2 Structure and Content of Diagnostic Data Data records 0 and 1 of system data Module diagnostics data have a maximum length of 29 bytes and are saved to data records 0 and 1 in system data: ●...
  • Page 305 Diagnostics data of the signal modules A.2 Structure and Content of Diagnostic Data Bytes 2 and 3 The diagram below shows the contents of bytes 2 and 3 in diagnostics data. Figure A-2 Diagnostics data bytes 2 and 3 Fail-safe signal modules Installation and Operating Manual, 01/2010, A5E00085586-10...
  • Page 306 Diagnostics data of the signal modules A.2 Structure and Content of Diagnostic Data Bytes 4 to 6 The diagram below shows the contents of bytes 4 to 6 in diagnostics data. Figure A-3 Diagnostics data bytes 4 and 6 Fail-safe signal modules Installation and Operating Manual, 01/2010, A5E00085586-10...
  • Page 307 Diagnostics data of the signal modules A.2 Structure and Content of Diagnostic Data Bytes 7 to 9 with SM 326; DI 24 x DC 24V The following figure shows the content of bytes 7 to 9 of the diagnostic data for the SM 326; DI 24 x DC 24V.
  • Page 308 Diagnostics data of the signal modules A.2 Structure and Content of Diagnostic Data Byte 7 with SM 326; DI 8 x NAMUR The following figure shows the content of byte 7 of the diagnostic data for the SM 326; DI 8 x NAMUR. Figure A-5 Diagnostics data byte 7 with SM 326;...
  • Page 309 Diagnostics data of the signal modules A.2 Structure and Content of Diagnostic Data Bytes 7 and 8 with SM 326; DO 10 x DC 24V/2A The following figure shows the content of bytes 7 and 8 of the diagnostic data for the SM 326;...
  • Page 310 Diagnostics data of the signal modules A.2 Structure and Content of Diagnostic Data Bytes 7 to 28 with SM 326; F-DO 10 x DC 24V/2A PP The following figure shows the content of bytes 7 to 28 of the diagnostic data for the SM 326;...
  • Page 311 Diagnostics data of the signal modules A.2 Structure and Content of Diagnostic Data Byte 7 with SM 336; AI 6 x 13Bit The following figure shows the content of byte 7 of the diagnostic data for the SM 336; AI 6 x 13Bit. Figure A-9 Diagnostics data byte 7 with SM 326;...
  • Page 312 Diagnostics data of the signal modules A.2 Structure and Content of Diagnostic Data Diagnostics with SM 336, F-AI 6 x 0/4 ... 20 mA HART The figure below shows the contents of bytes 4 to 19 of the diagnostics data. Figure A-10 Diagnostics data record as of byte 4 with SM 336, F-AI 6 x 0/4 ...
  • Page 313 Diagnostics data of the signal modules A.2 Structure and Content of Diagnostic Data Note Note the following regarding diagnostics data: If a HART channel fault is set, you receive additional information if you read in the status component (= HART status bytes) in the HART reply data record for the corresponding client or the diagnostics data record for the corresponding channel with SFC 59.
  • Page 314 Diagnostics data of the signal modules A.2 Structure and Content of Diagnostic Data Fail-safe signal modules Installation and Operating Manual, 01/2010, A5E00085586-10...
  • Page 315: Dimensional Drawings

    Dimensional drawings Signal Module Dimensional drawing of the signal module The signal module dimensions are shown in the dimensional drawing below (no hot-swap functionality). The signal modules may differ in terms of their appearance. However, the dimensions always remain the same. Figure B-1 Dimensional drawing of a signal module Figure B-2...
  • Page 316 Dimensional drawing of a signal module with active bus module The dimensional drawing (side view) below shows a signal module with active bus module for "hot-swap" functionality, the S7-300 module, and the Ex partition. These dimensions apply to all signal modules on the active backplane bus.
  • Page 317: Safety Protector

    Dimensional drawings B.2 Safety protector Safety protector Dimensional drawing of a safety protector See the dimensional drawing of a safety protector below. Figure B-4 Dimensions of the safety protector Bus module for safety protector See the dimensional drawing of a bus module for safety protectors below. Figure B-5 Dimensional drawing of the bus module for safety protectors Fail-safe signal modules...
  • Page 318 Dimensional drawings B.2 Safety protector Fail-safe signal modules Installation and Operating Manual, 01/2010, A5E00085586-10...
  • Page 319: Accessories And Order Numbers

    Accessories and order numbers Accessories and Order Numbers Accessories and order numbers The table below lists the order numbers of fail-safe signal modules, of the safety protector, and of accessories for fail-safe signal modules. Table C- 1 Accessories and order numbers Component Order number SIMATIC PDM...
  • Page 320 IM 153 Bus module 2 x 40 (…7HB) for one or two 40 mm wide 6ES7195-7HB00-0XA0  S7-300 modules Bus module 1 x 80 (…7HB) for one 80 mm wide S7-300 6ES7195-7HC00-0XA0  module Fail-safe signal modules Installation and Operating Manual, 01/2010, A5E00085586-10...
  • Page 321: Response Times

    F-system. For information on the calculated response time of the F-system, refer to the Safety Engineering in SIMATIC S7 (http://support.automation.siemens.com/WW/view/en/12490443) system description. The elements used in the formulae below are available in the technical data of the relevant module.
  • Page 322 Response times D.1 Response Times Response time of SM 326; DO 10 x DC 24V/2A Calculation of the response time of SM 326; DO 10 x DC 24V/2A (without active error and with active error): Response time = internal signal preparation time + output delay The output delay can always be ignored.
  • Page 323 Response times D.1 Response Times Maximum response time of SM 326; DI 24 x DC 24V Formula for calculating the maximum response time without active error: Maximum response time without active error = T + 3 ms* + 6 ms** Input delay* ** Short-circuit test time = 2 x input delay STEP 7...
  • Page 324 Response times D.1 Response Times Response time of SM 336; AI 6 x 13Bit Calculation of the response time (conversion time) of SM 336; AI 6 x 13Bit (with and without active fault) according to the following formula: Response time = N × response time per channel + basic response time Where N represents the number of activated channels Example all channels connected (N = 6), interference frequency = 50 Hz: Response time = 6 x 50 ms + 50 ms = 350 ms...
  • Page 325 Note on the calculation of response times Note Note that the Excel files for the calculation of maximum response times (s7fcotia.xls (http://support.automation.siemens.com/WW/view/en/11669702/133100) and s7ftimea.xls (http://support.automation.siemens.com/WW/view/en/26091594/133100)) included in the Distributed Safety S7 F/FH Systems options packages already support the calculation of an extended "maximum response time with active error"...
  • Page 326 Response times D.1 Response Times Fail-safe signal modules Installation and Operating Manual, 01/2010, A5E00085586-10...
  • Page 327: Switching Capacitive And Inductive Loads

    Switching capacitive and inductive loads Switching capacitive loads SM 326; DO 10 x DC 24V/2A, SM326; DO 8 x DC 24V/2A PM may generate a "short-circuit to L+ or output driver failure" error message if outputs without series diodes are interconnected with low-current loads with capacitive element.
  • Page 328 Switching capacitive and inductive loads Remedy: 1. Determine the load current and the capacitance of the load. 2. Determine the operating point in the diagram above. 3. If the operating point lies above the curve, you must do one of the following: –...
  • Page 329 Switching capacitive and inductive loads Assigned max. read-back time for dark test: ① ④ ⑦ 400 ms 50 ms 1 ms ② ⑤ ⑧ 200 ms 10 ms 0,6 ms ③ ⑥ 100 ms 5 ms Assigned max. light test time: ⑨...
  • Page 330 Switching capacitive and inductive loads Fail-safe signal modules Installation and Operating Manual, 01/2010, A5E00085586-10...
  • Page 331: Glossary

    Glossary 1oo1 evaluation Type of → sensor evaluation: In 1oo1 evaluation, the → sensor is not redundant and is connected via one channel to the module. 1oo2 evaluation Type of → sensor evaluation: In 1oo2 evaluation, two input channels are occupied, either by one two-channel sensor or two single-channel sensors.
  • Page 332 Glossary Channel number Channel numbers are used to identify the I/O of a module and to assign channel-specific diagnostic messages. Channel-selective passivation When a → channel fault occurs, only the relevant channel is passivated in this passivation method. The channels of the affected channel group/all channels of the fail-safe signal module are passivated when a channel group fault/module fault is detected.
  • Page 333 F monitoring time → PROFIsafe monitoring time Fail-safe signal modules S7-300 signal modules that support safety-oriented operation (in → safety mode) in Distributed Safety S7 F/FH Systems . These modules feature integrated → safety functions.
  • Page 334 S7 F/FH Systems integration in the F-systems. Available I/O: ● ET 200eco fail-safe I/O module ● S7-300 fail-safe signal modules (F-SMs) ● ET 200S fail-safe modules ● Fail-safe DP standard slaves Frequency shift keying (FSK) Data modulation technique suitable for data transport over standard lines. Two audio frequencies are used in order to encode the binary "0"...
  • Page 335 Glossary HART commands The HART field device works as a HART device and is controlled by the master via HART commands. The master assigns the HART parameters or requests data in the form of → HART replies. HART communication Transmission of data between a master (e.g. HART analog module) and a HART device (→ HART field device) via the →...
  • Page 336 Glossary HART protocol The → HART protocol is the industry standard for extended communication with → HART field devices. It includes → HART commands and → HART replies. HART replies The HART field device transmits data at the request of the master. These data are measurement results or manipulated variables or values of →...
  • Page 337 Glossary M switch Each fail-safe digital output of SM 326 DO 8 x DC 24V/2A PM consists of one DOx P switch (current source) and one DOx M switch (current sinking). The load is connected between the P and M switches. The two switches are always active in order to power the load. Measuring location identification tag Unique identifier for the measuring point, consisting of 8 characters.
  • Page 338 Glossary Nonequivalent sensor A nonequivalent → sensor is a two-way switch that is connected (via two channels) to two inputs of an → F-I/O in → fail-safe systems (for → 1oo2 evaluation of sensor signals). P switch → M switch Parameter assignment Assigning parameters using PROFIBUS DP: Transfer of slave parameters from the DP master to the DP slave.
  • Page 339 Glossary PROFIBUS PROcess FIeld BUS, German process and fieldbus standard to IEC 61784-1:2002 Ed1 CP 3/1. It defines the functional, electrical and mechanical properties of a bit-serial fieldbus system. PROFIBUS is available for the protocols DP (= distributed I/O), FMS (= fieldbus message specification), PA (= process automation), or TF (= technological functions).
  • Page 340 Glossary PROFIsafe address Each -> F-I/O is assigned a PROFIsafe address. You must configure the PROFIsafe address STEP 7 HW Config and set it on the F-I/O using a switch. PROFIsafe monitoring time Monitoring time for safety-oriented communication between the F-CPU and F-I/O. Proof-test interval The faultless state of a component must be verified on expiration of this specific time, that is, it must be replaced with an unused component unless proven faultless.
  • Page 341 Operating mode of → F-I/O which supports → safety-related communication using → safety message frames. → ET 200S fail-safe modules are dedicated to operation in safety mode. → S7-300 F-SMs (except F-AI 6 x 0/4 ... 20 mA HART) can be used in → standard mode or safety mode.
  • Page 342 F-I/O mode of operation which does not support → safety-oriented communication by means of → safety message frames. Supports only standard communication. S7-300 F-SMs (except F-AI 6 x 0/4 ... 20 mA HART) can be used in standard mode or → safety mode.
  • Page 343 Glossary Switch PROFIBUS is a linear network. Communication participants are connected by a passive line: the bus. The Industrial Ethernet, on the other hand, consists of point-to-point connections: each communication participant is connected exactly and directly to one other communication participant.
  • Page 344 Glossary Fail-safe signal modules Installation and Operating Manual, 01/2010, A5E00085586-10...
  • Page 345: Index

    Index 1oo2 evaluation, 32 Cable guide, 105, 109 Capacitive loads Switching, 327 Categories 3 and 4, 16 Category, 22 Accessories, 319 Causes of the problem Actuator at SM 326, DI 24 x DC 24V, 100 Additional requirements, 49 at SM 326, DO 8 x DC 24V/2A PM, 135 Requirements, 47 for SM 326, DI 8 x NAMUR, 122 Address...
  • Page 346 Index DIP switch, 35 Discrepancy analysis, 74 Dark period, 49 Discrepancy behavior, 74 Dark period suppression, 151, 169 Distributed configuration, 19 Data record format Documentation Diagnostics of the HART analog module, 288 Additional, 5 HART analog module, 287 Duration of sensor signals HART command, 290 Requirements, 48 HART communication, 289...
  • Page 347 Index Fail-safe automation system, 13 Fail-safe signal module, 13 I&M data, 30 Fail-safe value, 51 IE/PB Link, 18 Fault reactions, 51 IEC 1131, 61 Fields of application, 61 IEC 61508, 16 Input area Approval, 60 User data, 295 Front connectors, 46 Input delay, 323 F-SM, 13 Insertion/removal, 46...
  • Page 348 Index Parameters, 280 Safety protector, 22 HART, 280 Block diagram, 298 Passivation, 52 Configuration in ET 200M/S7-300, 299 Power supplies, 45 Front view, 298 PROFINET IO, 18 Order number, 297 Network topology, 18 Technical data, 302 PROFIsafe Scope Address, 34, 38...
  • Page 349 Index SM 326, DI 8 x NAMUR Properties, 184 Address assignment, Wiring and block diagram, 186 Causes of the problem and corrective Smoothing of analog input values, 269 measures, 122 Software requirements, 25 Channel numbers, 108 Standard mode Diagnostic messages, 121 Channel addressing, 33 Front view, 106 STEP 7, 57...
  • Page 350 Index Vibration, 69 Voltages Rated, 70 Wire break, 183, 223 Wiring, 80 Fail-safe signal modules Installation and Operating Manual, 01/2010, A5E00085586-10...
  • Page 351 Your Address: Name: Siemens AG Company: A&D AS SM ID Position: Postfach 1963 Street: D-92209 Amberg Postal code / Place: Email: mailto:doku.automation@siemens.com Phone: Fax: Your Feedback as regards the S7 Distributed Safety Dear SIMATIC user, Our goal is to provide you information with a high degree of quality and usability, and to continuously improve the SIMATIC documentation for you.
  • Page 352 Please specify the documents, for which you want to answer the questions below: Manual S7 Distributed Safety, Manual ET 200eco, Distributed I/O Configuring and Programming Fail-Safe I/O Module Manual S7-300, Fail-Safe System Description Signal Modules Safety Engineering in SIMATIC S7 Getting Started S7 Distributed Safety...
  • Page 353 Ihrer Anlage kein Surge-Schutz notwendig ist oder Sie anderweitige Schutzmaßnahmen vorgesehen haben, können Sie auch erdfrei aufbauen. *) Betriebsanleitung Automatisierungssystem S7-300 Aufbauen: CPU 31xC und CPU 31x (Bestandteil des Dokumentationspaketes mit der Bestellnummer 6ES7398-8FA10-8AA0) Copyright  Siemens AG 2010...
  • Page 354 *) Operating instructions S7-300 Automation System, Hardware and Installation: CPU 31xC and CPU 31x (part of the documentation package with the order number 6ES7398-8FA10-8BA0)
  • Page 355 *) Instructions de service S7-300 Installation et configuration : CPU 31xC et CPU 31x (fait partie de la documentation avec le numéro de référence 6ES7398-8FA10-8CA0)
  • Page 356 Product Information A5E03004206-01...

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