Allen-Bradley FLEX Ex 1797-OE8 Installation Instructions Manual
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Allen-Bradley FLEX Ex 1797-OE8 Installation Instructions Manual

8 output and hart analog modules
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FLEX Ex 8 Output and HART Analog Modules
Catalog Numbers 1797-OE8, 1797-OE8H
Installation Instructions
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Summary of Contents for Allen-Bradley FLEX Ex 1797-OE8

  • Page 1: Table Of Contents

    Installation Instructions FLEX Ex 8 Output and HART Analog Modules Catalog Numbers 1797-OE8, 1797-OE8H Topic Page Important User Information Environment and Enclosure Prevent Electrostatic Discharge Removal and Insertion Under Power European Communities (EC) Directive Compliance Installation in Zone 1 Installation in Zone 22 Install the Module Wire the Module to a 1797-TB3 or 1797-TB3S Terminal Base Unit Ground the Module...

  • Page 2: Topic

    2 FLEX Ex 8 Output and HART Analog Modules Topic Page HART Input Data HART Input Data Descriptions HART Read Back Threshold 1797-OE8 Configuration Map 1797-OE8H Extended Configuration Data Table 1797-OE8H Secondary Master Enable (SME)/ Primary Master Inhibit (PMI) Field Descriptions 1797-OE8 FLEX Ex Output Module Operation Cooperative Operation of the Adapter and the 1797-OE8H Output Module Specifications...

  • Page 3: Important User Information

    FLEX Ex 8 Output and HART Analog Modules 3 Important User Information olid state equipment has operational characteristics differing from those of electromechanical equipment. Safety Guidelines for the Application, Installation and Maintenance of Solid State Controls (Publication SGI-1.1 available from your local Rockwell Automation sales office or online at http://literature.rockwellautomation.com) describes some important differences between solid state equipment and hard-wired electromechanical devices.

  • Page 4: Environment And Enclosure

    In addition to this publication, see: • Industrial Automation Wiring and Grounding Guidelines, for additional installation requirements, Allen-Bradley publication 1770-4.1. • NEMA Standards 250 and IEC 60529, as applicable, for explanations of the degrees of protection provided by different types of enclosure.

  • Page 5: Prevent Electrostatic Discharge

    FLEX Ex 8 Output and HART Analog Modules 5 Prevent Electrostatic Discharge This equipment is sensitive to electrostatic discharge, which can cause internal ATTENTION damage and affect normal operation. Follow these guidelines when you handle this equipment: • Touch a grounded object to discharge potential static. •...

  • Page 6: European Communities (Ec) Directive Compliance

    6 FLEX Ex 8 Output and HART Analog Modules European Communities (EC) Directive Compliance If these products have the CE mark they are approved for installation within the European Union and EEA regions. They have been designed and tested to meet the following directives. EMC Directive These products are tested to meet the Council Directive 2014/30/EU by applying the following standards:...
  • Page 7 7 FLEX Ex 8 Output and HART Analog Modules • Are intended for use in areas in which explosive atmospheres caused by gases, vapors, mists, or air are likely to occur occasionally. Such locations correspond to Zone 1 or 2 classification according to ATEX directive 2014/34/EU.

  • Page 8: Installation In Zone 1

    8 FLEX Ex 8 Output and HART Analog Modules Installation in Zone 1 These modules must not be exposed to the environment. Provide a suitable metal enclosure. This module has a protection factor of IP20. These modules cannot be used in an intrinsically safe WARNING environment after they have been exposed to nonintrinsically safe signals.

  • Page 9: Install The Module

    FLEX Ex 8 Output and HART Analog Modules 9 Install the Module Read this for information about how to install the module which must be used with a 1797-TB3 or 1797-TB3S intrinsically safe terminal base unit. Label here or under here 41439 This equipmment is considered Group 1, Class A industrial equipement ATTENTION...
  • Page 10 10 FLEX Ex 8 Output and HART Analog Modules Do not remove or replace a Terminal Base unit while power is applied. ATTENTION Interruption of the backplane can result in unintentional operation or machine motion. To install the module on a 1797 terminal base, see the figure and complete the following.

  • Page 11: Wire The Module To A 1797-Tb3 Or 1797-Tb3S Terminal Base Unit

    FLEX Ex 8 Output and HART Analog Modules 11 41307 Wire the Module to a 1797-TB3 or 1797-TB3S Terminal Base Unit WARNING If you connect or disconnect wiring while the field-side power is on, an electrical arc can occur. This could cause an explosion in hazardous location installations. Be sure that power is removed or the area is nonhazardous before proceeding.
  • Page 12 12 FLEX Ex 8 Output and HART Analog Modules 2. Connect +V DC power to terminal 34 on the 34…51 row (C). 3. Connect -V to terminal 35 on the 34…51 row (C). Make certain that you power these modules with an intrinsically safe power WARNING supply.

  • Page 13: Ground The Module

    FLEX Ex 8 Output and HART Analog Modules 13 Ground the Module All I/O wiring must use shielded wire. Shields must be terminated external to the module, such as bus bars and shield-terminating feed-throughs. 44862 Publication 1797-IN003J-EN-P - August 2017...

  • Page 14: Outputs

    14 FLEX Ex 8 Output and HART Analog Modules Outputs Each output channel can operate an analog field device. Do not apply any nonintrinsically safe signals to these modules. When using an intrinsically safe electrical apparatus according to EN50020, the European Community directives and regulations must be followed. The channels in these modules are electrically connected to each other.
  • Page 15 FLEX Ex 8 Output and HART Analog Modules 15 Output Voltage versus Current Capability Output Voltage versus Current Capability for the 1797-OE8 Module Voltage V DC 43002 Output Voltage versus Current Capability for the 1797-OE8H Module Voltage 20.5 V DC 43850 Publication 1797-IN003J-EN-P - August 2017...

  • Page 16: 1797-Oe8 Input Map (Read Words)

    16 FLEX Ex 8 Output and HART Analog Modules 1797-OE8 Input Map (Read Words) Word Reserved Diagnostic Status Res Module Command Response Module Response Data Where: Ch = channel FA = fault Res = Reserved 1797-OE8H Input Map (Read Words) Word HR Reserved Diagnostic Status...

  • Page 17: 1797-Oe8 Output Map (Write Words)

    FLEX Ex 8 Output and HART Analog Modules 17 1797-OE8 Output Map (Write Words) Word 15 14 13 12 11 10 9 OE FR Reserved Channel 0 Output Data Channel 1 Output Data Channel 2 Output Data Channel 3 Output Data Channel 4 Output Data Channel 5 Output Data Channel 6 Output Data...

  • Page 18: 1797-Oe8H Configuration Map

    18 FLEX Ex 8 Output and HART Analog Modules 1797-OE8H Configuration Map Word 14 13 12 11 10 9 LFM VR FE Byte HSI FE Byte Order LEDs Order Group B Group A Data Format Ch3 Data Format Ch2 Data Format Ch1 Data Format Ch0 Data Format Ch7 Data Format Ch6...

  • Page 19: Data Format - Write Words 2 And 3

    FLEX Ex 8 Output and HART Analog Modules 19 Data Format - Write Words 2 and 3 Data Bits Format Signal Range User Range Resolution Format 15 14 13 12 11 10 9 0 0 0 0 0…20 mA as 0.00 22.00 22000...

  • Page 20: Cyclic Hart Input Datacyclic Hart Input Data

    20 FLEX Ex 8 Output and HART Analog Modules Cyclic HART Input Data The HART input data holds the primary variables for the "live" HART device, and other information gathered during the normal HART scan. Additional "documentary" data is available through the pass through message interface in the device information tables.
  • Page 21 FLEX Ex 8 Output and HART Analog Modules 21 HART Input Data Word 15 14 13 12 11 10 9 Ch1 HART Secondary Value Ch1 HART Teritiary Value Ch1 HART Fourth Value Ch1 HART Secondary Value Units Code Ch1 HART Primary Value Units Code Ch1 HART Fourth Value Ch1 HART Tertiary Value Units Code Ch2 HART Field Device Status...

  • Page 22: Installation In Zone

    22 FLEX Ex 8 Output and HART Analog Modules HART Input Data Word 15 14 13 12 11 10 9 Ch3 HART Secondary Value Units Code Ch3 HART Primary Value Units Code Ch3 HART Fourth Value Ch3 HART Tertiary Value Units Code Ch4 HART Field Device Status Ch4 HART Communication Status Reserved...
  • Page 23 FLEX Ex 8 Output and HART Analog Modules 23 HART Input Data Word 15 14 13 12 11 10 9 Ch6 Secondary Value Ch6 Tertiary Value Ch6 Fourth Value Ch6 HART Secondary Value Units Code Ch6 HART Primary Value Units Code Ch6 HART Fourth Value Ch6 HART Tertiary Value Units Code Ch7 HART Field Device Status...

  • Page 24: Hart Input Data Descriptions

    24 FLEX Ex 8 Output and HART Analog Modules HART Input Data Descriptions Chn: HART CMD 3 Communication 0: HART CMD3 1: HART CMD3 Status Communication Disabled or Communication Error No Error between Adapter & Module Chn: HART Comm Status (HART CMD3 Refer to User Manual Response first status byte): Chn: HART Field Device Status (HART...

  • Page 25: Hart Read Back Threshold

    FLEX Ex 8 Output and HART Analog Modules 25 HART Read Back Threshold HART Read Back Decimal Bits Value Disabled Not applicable Not applicable Not applicable Not applicable … … … … … … … 1, 2, 3, and 4 are not applicable. Values between 1 and 4 will lead the IOM to automatically use an internal value of 5%.

  • Page 26: 1797-Oe8 Configuration Map

    26 FLEX Ex 8 Output and HART Analog Modules 1797-OE8 Configuration Map Config Bit Word 15 11 10 9 AFState AFState Data Format Data Format Ch2...3 Ch0...1 Ch2...3 Ch0...1 Ch2...3 Ch0...1 AFState AFState Data Format Data Format Ch4...7 Ch0...3 Ch6...7 Ch4...5 Ch6...7 Ch4...5...

  • Page 27: 1797-Oe8H Extended Configuration Data Table

    FLEX Ex 8 Output and HART Analog Modules 27 The extended configuration data table is accessed (read/write) by using a MSG or CIO instruction. See the table, Field Descriptions on page 28 more information. 1797-OE8H Extended Configuration Data Table Config Bit Word 15 14 13 12 11 10 9 Reserved HART Read Back Threshold...

  • Page 28: Field Descriptions

    28 FLEX Ex 8 Output and HART Analog Modules Field Descriptions Analog/Digital Selects if the channel acts as a normal analog output or as a switched Output Mode digital output. Analog Output mode will follow the Analog Data Format selected. Digital Output mode will output 0 mA = OFF, 22 mA = ON if the Fault mode is 0 = disable.
  • Page 29 FLEX Ex 8 Output and HART Analog Modules 29 Field Descriptions Analog Fault State Specifies the fault state value of the analog output data to the module. Value Specific format is controlled by Module Data Format Control parameter. This data is used when the channel is in Analog Output mode and the analog fault state is configured to use analog fault state value.
  • Page 30 30 FLEX Ex 8 Output and HART Analog Modules Field Descriptions HART Read Back The HART Read Back bits show deviations between the analog (1797-OE8H) measured current value on a loop (by the 1797-OE8H) and the digital (real) current (sensed by the HART device on its own) received by the 1797-OE8H during HART communication in the background.
  • Page 31 FLEX Ex 8 Output and HART Analog Modules 31 Field Descriptions HART Status Inhibit When this bit is set (1), the HART communication status is not shown (1797-OE8H) in the realtime data table. The appropriate areas are cleared with zeroes. Range: 0 = normal, 1 = inhibit HART.
  • Page 32 32 FLEX Ex 8 Output and HART Analog Modules Cooperative Operation of the ControlNet Ex Adapter and the 1797-OE8 Output Module The ControlNet Ex adapter (1797-ACNR15) combined with the 1797-OE8 output module provides a two-tier fault state mechanism. It is important to consider and understand the operation of this mechanism when designing your system.

  • Page 33: 1797-Oe8 Flex Ex Output Module Operation

    FLEX Ex 8 Output and HART Analog Modules 33 Program Mode Behavior The adapter also monitors the state of the controlling processor or scanner. Two states can be detected: run mode and program mode (idle). When program mode is detected, the adapter can be configured to: •...

  • Page 34: Cooperative Operation Of The Adapter And The 1797-Oe8H Output Module

    34 FLEX Ex 8 Output and HART Analog Modules Power-up State Behavior The system and modules use the Output Enable bit at system power-up. The power-up state of the Output Enable bit is 0 and must be transitioned to 1 through application program control to initialize activity of a module’s outputs.

  • Page 35: Specifications

    FLEX Ex 8 Output and HART Analog Modules 35 Repair This module is not field repairable. Any attempt to open the module will void the ATTENTION warranty and IS certification. If repair is necessary, return the module to the factory. Status Indicators Power Status Input Status...
  • Page 36 36 FLEX Ex 8 Output and HART Analog Modules IS module type Ex ib IIB/IIC T4 AEx ib IIC T4 Class I, II, III Division 1 Groups A-D T4 Resolution 13 bit Transfer Characteristics 0.1% of output signal range Accuracy at 20 C (68 0.010%/°C of output signal range Temperature Drift...
  • Page 37 FLEX Ex 8 Output and HART Analog Modules 37 Weight 200 g (approximately) Keyswitch Position Environmental Conditions Operational Temperature -20…+70 C (-4…+158 Storage Temperature -40…+85 C (-40…+185 Relative Humidity 5…95% noncondensing Shock Operating Tested to 15 g peak acceleration, 11(+1) ms pulse width Nonoperating Tested to 15 g peak acceleration, 11(+1) ms pulse width Vibration...
  • Page 38 38 FLEX Ex 8 Output and HART Analog Modules Certificates CENELEC DMT 00 ATEX E 042 X UL, C-UL File No.: E197983 Class I Division 1 Hazardous FM Certificate Number 3009806 IECEx IECEx BVS 09.0023X INMETRO 05/UL-BRAE-0017X Publication 1797-IN003J-EN-P - August 2017...
  • Page 39 FLEX Ex 8 Output and HART Analog Modules 39 Specifications - 1797-OE8H Number of Outputs 8 single-ended, non-isolated IS Input type Ex ia IIB/IIC T4 AEx ia IIC T4 Class I, Division I Groups A-G T4 (FM only) IS Module type Ex ib IIB/IIC T4 AEx ib IIC T4 Class I, Division I Groups A-D T4 (FM only)
  • Page 40 40 FLEX Ex 8 Output and HART Analog Modules Thermal Dissipation 20.8 BTU/hr Module Location Cat. No. 1797-TB3 or 1797-TB3S Terminal Base Unit Conductors Wire Size 4 mm (12 gauge) stranded max 1.2 mm (3/64 in.) insulation max Dimensions Metric 46 mm x 94 mm x 75 mm Imperial (1.8 in.
  • Page 41 FLEX Ex 8 Output and HART Analog Modules 41 Entity Parameters CE, CENELEC I/O Entity Parameters (1797-OE8) Signal output (+ to -) for ch 0 to ch 7 (terminals: 0 and 1; 4 and 5; 8 and 9; 12 and 13; 17 and 18; 21 and 22; 25 and 26;...
  • Page 42 42 FLEX Ex 8 Output and HART Analog Modules • UL 1203, Explosion-Proof and Dust-Ignition-Proof Electrical Equipment for Use in Hazardous (Classified) Locations • UL 2279, Electrical Equipment for Use in Class I, Zone 0, 1, and 2 Hazardous (Classified) Locations •...
  • Page 43 FLEX Ex 8 Output and HART Analog Modules 43 Table 1 Wiring Channel Terminals Groups Method (mA) (mA) (μF) (mH) 1 and 2 Any one 0(+), 1(-) 21.0 100.0 A, B, IIC 0.08 channel C, E, IIB 0.24 (for D, F, G, 0.64 16.0 example,...
  • Page 44 44 FLEX Ex 8 Output and HART Analog Modules Hazardous (Classified) Location Hazardous (Classified) Location Class I, Zones 0, 1, & 2 Groups IIC, IIB, IIA Class I, Zones 1 & 2 Groups IIC, IIB, IIA Class I, Div. 1 & 2 Groups A, B, C, D Class I, Div.
  • Page 45 FLEX Ex 8 Output and HART Analog Modules 45 Table 2 Terminals (mA) Groups (μF) (μH) Male Bus Connector The entity concept allows interconnection of intrinsically safe apparatus  with associated apparatus not specifically examined in combination as a system when the approved values of V and I or V and I...
  • Page 46 46 FLEX Ex 8 Output and HART Analog Modules FM I/O Entity Parameters If this product has the FM mark, it has been designed, evaluated, tested, and certified to meet the following standards: • FM C1. No.3600:1998, Electrical Equipment for Use in Hazardous (Classified) Locations General Requirements •...
  • Page 47 FLEX Ex 8 Output and HART Analog Modules 47 FM I/O Entity Parameters for 1797-OE8 Wiring Channel Terminals Groups Method (mA) (mA) (μF) (mH) 1 and 2 Any one 0(+), 1(sig) 21.0 100.0 A, B 0.20 channel C, E 0.60 10.5 (for D, F, G...
  • Page 48 48 FLEX Ex 8 Output and HART Analog Modules A terminal base may or may not have an I/O module IMPORTANT installed. Hazardous (Classified) Location Hazardous (Classified) Location Class I, Zones 0 Groups IIC, IIB, IIA Class I, Zones 1 Groups IIC Class I, Div.
  • Page 49 FLEX Ex 8 Output and HART Analog Modules 49 Table 3: Flexbus Entity Values for this Module Any combination of up to eight FLEX Ex I/O modules may be attached on a flexbus. Terminals (mA) Groups (μF) (μH) Female Bus A to D 1.35 Connector...
  • Page 50 50 FLEX Ex 8 Output and HART Analog Modules Attention: Avoid electrostatic charging. ATENÇÃO! PREVENIR CONTRA O ACÚMULO DE CARGA ELETROSTÁTICA. Publication 1797-IN003J-EN-P - August 2017...
  • Page 51 FLEX Ex 8 Output and HART Analog Modules 51 Publication 1797-IN003J-EN-P - August 2017...
  • Page 52 Please contact your local Rockwell Automation representative for the return procedure. Allen-Bradley, Rockwell Automation, TechConnect, and Flex Ex are trademarks of Rockwell Automation, Inc. Trademarks not belonging to Rockwell Automation are property of their respective companies. Rockwell Automation maintains current product environmental information on its website at http://www.rockwellautomation.com/rockwellautomation/about-us/sustainability-ethics/product-environmental-compliance.page.

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