Rockwell Automation 1797-OE8H User Manual

FLEX Ex HART Analog Modules

1797-IE8H, 1797-OE8H

User Manual

Important User Information

Solid 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. Because of this difference, and also because of the wide variety of uses for solid state equipment, all persons responsible for applying this equipment must satisfy themselves that each intended application of this equipment is acceptable.

In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from the use or application of this equipment.

The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and requirements associated with any particular installation, Rockwell Automation, Inc. cannot assume responsibility or liability for actual use based on the examples and diagrams.

No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits, equipment, or software described in this manual.

Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell Automation, Inc., is prohibited.

Throughout this manual we use notes to make you aware of safety considerations.

WARNING

IMPORTANT

ATTENTION

SHOCK HAZARD

BURN HAZARD

Identifies information about practices or circumstances that can cause an explosion in a hazardous environment, which may lead to personal injury or death, property damage, or economic loss.

Identifies information that is critical for successful application and understanding of the product.

Identifies information about practices or circumstances that can lead to personal injury or death, property damage, or economic loss. Attentions help you:

• identify a hazard

• avoid a hazard

• recognize the consequence

Labels may be located on or inside the equipment to alert people that dangerous voltage may be present.

Labels may be located on or inside the equipment to alert people that surfaces may be dangerous temperatures.

Allen-Bradley, FLEX Ex, ControlNet Ex, PLC, RSNetWorx, RSLogix5, and Logix5000 are trademarks of Rockwell Automation, Inc.

Trademarks not belonging to Rockwell Automation are property of their respective companies.

Summary of Changes

What’s Changed

The following table lists items changed since the last printing.

Changes See

Removed the word bit in Command 12 B-2

Removed the word bit in Command 17 B-2

Added Device-specific Commands B-3 to B-24

To help you find new and updated information in this release of the manual, we have included change bars as shown next to this paragraph.

1 Publication 1797-6.5.3 - March 2006

Summary of Changes 2

Notes:

Publication 1797-6.5.3 - March 2006

Summary of Changes

Important User Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

What’s Changed . . . . . . . . . . . . . . . . . . . . . . . . . Summary of Changes-1

Preface

About the FLEX Ex HART Analog Modules

Why Read This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-1

Who Should Read This Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-1

About the Vocabulary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-1

What This Manual Contains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-1

For Additional Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-2

Chapter 1

What This Chapter Contains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

What the FLEX Ex Analog

I/O Modules Do . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

How FLEX Ex Analog Modules Communicate with Programmable

Controllers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Events After Cycling Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Physical Features of Your Analog I/O Module . . . . . . . . . . . . . . . . . 1-3

Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Using Alarms on the 1797-IE8H Module. . . . . . . . . . . . . . . . . . . . . . 1-3

Data Format Alarm Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Overrange Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Underrange Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Remote Fault Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Local Fault Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

How to Use the HART Capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

HART Implementation Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

HART Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

HART Target Tags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

HART Command Tags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

HART Initialize Tags. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

HART Initialize Channel Tags . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12

Modify Your Ladder-Logic Routine . . . . . . . . . . . . . . . . . . . . . . 1-13

Selecting the Correct Path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15

Chapter Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15

Chapter 2

Understand Configurable FLEX Ex Analog Module Features

1 Publication 1797-6.5.3 - March 2006

What This Chapter Contains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Selecting a 1797-IE8H FLEX Ex Analog Input Module’s

Operating Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Fault Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Remote Transmitter Error Up or Down . . . . . . . . . . . . . . . . . . . 2-3

High Low Error Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Input Filter Cutoff . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Data Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Selecting a 1797-OE8H FLEX Ex Analog Output Module’s

Operating Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Table of Contents 2

Local Fault Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Latch Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Global Reset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Analog Digital State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Analog Fault State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Analog Fault State Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Digital Fault State. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Data Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Fault Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

Understanding Image Table Mapping and Bit/Word Descriptions 2-12

Bit Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Analog Input Module (1797-IE8H) Image Table Mapping. . . . 2-13

Bit/Word Description for the Analog Input Module

(1797-IE8H). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14

Analog Output Module (1797-OE8H) Image Table Mapping . 2-16

1797-IE8H and -OE8H Extended Configuration Data Table . . . . 2-19

Secondary Master Enable (SME) and Primary Master

Inhibit (PMI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20

Chapter Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21

How to Install Your FLEX Ex Analog Modules

Chapter 3

What This Chapter Contains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Before You Install Your Analog Module . . . . . . . . . . . . . . . . . . . . . . 3-1

Compliance to European Union Directives . . . . . . . . . . . . . . . . . . . . 3-2

EMC Directive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

ATEX Directive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Installation in Zone 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Installation in Zone 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Electrostatic Charge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Removal and Insertion Under Power . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Install the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Mount on a DIN Rail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Panel/Wall Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Mounting the Analog Modules on the Terminal Base Unit. . . . . 3-9

Wire the Terminal Base Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

Connecting Wiring to the FLEX Ex I/O Analog Modules. . . . . . . 3-11

Inputs/Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

Connections for the 1797-IE8H Module . . . . . . . . . . . . . . . . . . 3-11

Connections for the 1797-OE8H Module . . . . . . . . . . . . . . . . . 3-13

Ground the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14

Chapter Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

Publication 1797-6.5.3 - March 2006

Table of Contents 3

Publication 1797-6.5.3 - March 2006

Table of Contents 4

Input, Output and Configuration Files for the Analog I/O Modules on the ControlNet Network

Calibrate Your Module

Chapter 4

What This Chapter Contains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Using Programming Software in Your FLEX Ex Application . . . . . 4-2

About the ControlNet Ex Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Communication Over the FLEX Ex Backplane. . . . . . . . . . . . . . . . . 4-3

Scheduled Data Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Unscheduled Data Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Module I/O Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

I/O Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Adapter Status Word . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Fault State Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7

Device Actions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7

Communication Fault Behavior . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8

Idle State Behavior. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8

Chapter Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8

Chapter 5

What This Chapter Contains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

When and How to Calibrate Your FLEX Ex Analog I/O Module . 5-2

Tools and Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

1797-IE8H Calibration Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

1797-IE8H Calibration Command Structure . . . . . . . . . . . . . . . . . . . 5-4

1797-IE8H Calibration Command Byte. . . . . . . . . . . . . . . . . . . . 5-5

1797-IE8H Calibration Item Byte Channel-Mask . . . . . . . . . . . . 5-8

1797-IE8H Calibration with Offset and Gain . . . . . . . . . . . . . . 5-11

1797-OE8H Calibration Features . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12

1797-OE8H Calibration Command Byte . . . . . . . . . . . . . . . . . . 5-13

1797-OE8H Calibration Item Byte Channel-Mask . . . . . . . . . . 5-19

1797-OE8H Calibration Flowchart Procedure . . . . . . . . . . . . . 5-21

Apply FLEX Ex Analog I/O Modules

Publication 1797-6.5.3 - March 2006

Chapter 6

What This Chapter Contains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

Evaluate the Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

Define the Area Classification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

Decide Classification Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

Determine Hazard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

Determine Temperature Rating . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

Select Protection Method(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

Match Field Devices and I/O Modules . . . . . . . . . . . . . . . . . . . . . . . 6-3

P/I Analog Transmitter Functional and IS Parameters. . . . . . . . 6-3

1797-IE8H Functional and IS Parameters . . . . . . . . . . . . . . . . . . 6-4

Loop Functionality Verification . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4

Intrinsic Safety Entity Verification . . . . . . . . . . . . . . . . . . . . . . . . 6-6

I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7

Troubleshoot the FLEX Ex Analog I/O Modules

Specifications

Table of Contents 5

Optimize Power Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7

Assigning Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8

Power Supply Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10

Chapter Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10

Chapter 7

What This Chapter Contains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Status Indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

1797-IE8H Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

1797-OE8H Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

Chapter Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

Appendix A

1797-IE8H Input Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

1797-IE8H CE, CENELEC I/O Entity Parameters. . . . . . . . . A-3

1797-IE8H UL, C-UL I/O Entity Parameters. . . . . . . . . . . . . . A-4

1797-IE8H FM I/O Entity Parameters . . . . . . . . . . . . . . . . . . . A-7

1797-OE8H Output Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-10

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-10

1797-OE8H CENELEC I/O Entity Parameters . . . . . . . . . . A-11

FLEX Ex HART Module Commands

Appendix B

What This Appendix Contains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

Protocol Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

Universal Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2

Common Practice Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3

Device-specific Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3

Command 128 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3

Command 129 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4

Command 130 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-6

Command 131 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-7

Command 132 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-8

Command 133 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-8

Command 134 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-9

Command 135 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-10

Command 136 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-11

Command 137 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-12

Command 138 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-13

Command 139 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-14

Command 140 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-15

Command 141 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-16

Command 143 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-17

Command 144 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-17

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Table of Contents 6

Additional HART Protocol Information

Command 145 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-18

Command 146 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-19

Command 147 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-20

Command 148 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-20

Command 149 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-21

Command 152 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-21

Command 154 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-22

Command 158 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-23

Command 159 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-24

Command 164 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-24

Appendix C

What This Appendix Contains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1

Message Structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1

Master-slave Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1

Multiple Master Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1

Transaction Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2

Burst Mode (not supported) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2

Universal Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-7

Common Practice Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-9

Configure the 1797-OE8H Module in RSLogix 5000 Software Over the ControlNet Network

Appendix D

What This Appendix Contains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1

Background Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1

Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-2

Analog Fault State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-4

Fault Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-4

Local Fault Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-4

Latch Retry Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-5

Analog/Digital Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-5

Digital Fault State. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-6

Analog Fault State Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-6

Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-7

Digital Output Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-7

Global Reset Bit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-7

Analog Output Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-7

Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-8

Diagnostic Status Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-8

HART Rebuild Bit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-8

Fault Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-8

HART Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-9

HART Readback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-9

HART Communication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-9

HART Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-10

Publication 1797-6.5.3 - March 2006

Configure the 1797-IE8H Module in RSLogix 5000 Software Over the ControlNet Network

Table of Contents 7

Appendix E

What This Appendix Contains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-1

Background Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-1

Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-2

Fault Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-2

Data Format Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-2

Filter Cutoff . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-4

Up/Down Bit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-5

High and Low Error Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-5

Square Root Threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-7

Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-7

Analog Input Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-7

Underrange Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-7

Overrange Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-8

Local Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-8

Remote Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-8

Diagnostic Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-9

FLEX Ex HART Modules Network Messaging

Appendix F

What This Appendix Contains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F-1

Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F-1

Differences Between Attributes and Assembly Indexes . . . . . . . . . . F-3

HART Frame Enhancements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F-6

Index

Rockwell Automation Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Installation Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

New Product Satisfaction Return . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Publication 1797-6.5.3 - March 2006

Table of Contents 8

Publication 1797-6.5.3 - March 2006

Preface

Why Read This Manual

Who Should Read This Manual

About the Vocabulary

What This Manual Contains

Chapter Title Contents

1 About the FLEX Ex HART Analog

2 Understand Configurable FLEX Ex

This manual shows you how to use your FLEX Ex analog modules with the ControlNet Ex products and ControlNet network. The manual helps you install, program, and troubleshoot your module.

You must be able to program and operate a ControlNet Ex product and ControlNet network to make efficient use of a FLEX Ex module.

In this manual, we refer to the:

• 1797-IE8H as the input module

• 1797-OE8H as the output module

The following chart lists each chapter with its corresponding title and a brief overview of the topics covered in that chapter.

Describes module functionality and physical

Modules

Analog Module Features

features

Describes configurable module features and configuration bits

3 How to Install Your FLEX Ex Analog

Modules

4 Input, Output and Configuration Files

for the Analog I/O Modules on the ControlNet Network

5 Calibrate Your Module Lists the tools needed, and the methods used to

6 Apply FLEX Ex Analog I/O Modules Describes how FLEX Ex is different from

7 Troubleshoot the FLEX Ex Analog I/O

Modules

Appendix Title Contents

A Outlines module specifications and accuracy

B Explains how to program the analog modules

C Additional HART Protocol Information Discusses the HART protocol and provides

How to install and wire the modules

Describes how to use these I/O modules over the ControlNet network

calibrate the module

traditional control systems

How to use the indicators to troubleshoot your module

references for additional information.

1 Publication 1797-6.5.3 - January 2006

Preface 2

D Configure the 1797-OE8H Module in

E Configure the 1797-IE8H Module in

F FLEX Ex HART Modules Network

For Additional Information

1797 Series FLEX Ex Selection Guide 1794-SG002

1797 Series ControlNet Ex System Cable Guide 1797-6.2.1

1797-TB3 FLEX Ex Terminal Base

1797-TB3S FLEX Ex Spring Clamp Terminal Base

1797-OE8H FLEX Ex HART 8 Output Analog Module 1797-5.3 1797-6.5.3

1797-IRT8 FLEX Ex RTD/Thermocouple/mV Module 1797-5.4 1797-6.5.2

1797-IE8H FLEX Ex HART 8 Input Analog Module 1797-5.5 1797-6.5.3

1797-OB4D 4 Output Module 1797-5.6

1797-IBN16 FLEX Ex NAMUR Digital Input Module 1797-5.7

1797-PS2E2 FLEX Ex Power Supply 1797-5.8

1797-IJ2 2 Frequency Input Module 1797-5.9 1797-6.5.4

1797-PS2N2 FLEX Ex Power Supply 1797-5.12

1797-BIC FLEX Ex Bus Isolator

1797-CEC FLEX Ex Flexbus Connector

1797-ACNR15 ControlNet Ex Adapter 1797-5.14

1797-RPA, -RPFM Fiber Hub 1797-5.15

1797-TPR, -TPRS,

-TPYR, -TPYS

1797-CE1S, -CE3S,

-CEFTN, -CEFTE

1797-EXMK Marker Kit 1797-5.23

1797-PS1E FLEX Ex Power Supply 1797-5.33

1797-PS1N FLEX Ex Power Supply 1797-5.34

1797-BCNR FLEX Ex Redundant ControlNet Barrier Module 1797-5.35

Provides the information necessary to configure

RSLogix 5000 Software Over the

the 1797-OE8H analog output module.

ControlNet Network

Provides the information necessary to configure

RSLogix 5000 Software Over the

the 1797-IE8H analog input module.

ControlNet Network

Discusses how to communicate with the HART

Messaging

modules via the MSG or CIO instruction, differences between attributes and assembly indexes, and enhancements to the HART frame.

For additional information on FLEX Ex systems and modules, refer to the following documents.

Catalog Number

FLEX Ex Taps

Interconnect Cables

Description

Installation Instructions

1797-5.1

1797-5.13

1797-5.18

1797-5.20

Publications

User Manual

1797-6.2.1

Publication 1797-6.5.3 - January 2006

Chapter

About the FLEX Ex HART Analog Modules

What This Chapter Contains

What the FLEX Ex Analog I/O Modules Do

Read this chapter to familiarize yourself with the input and output analog modules.

For See

What the FLEX Ex Analog I/O Modules Do

How FLEX Ex Analog Modules Communicate with Programmable Controllers

Physical Features of Your Analog I/O Module

Chapter Summary 1-15

The 1797-IE8H module accepts up to 8 analog inputs. The inputs are non-isolated and will accept current in either of the following two ranges: 4 to 20 mA or 0 to 20mA. The default input range is 0 to 20 mA. The inputs have both fixed hardware filters and selectable firmware digital filters.

Similarly, the 1797-OE8H module provides as many as eight analog outputs. The outputs are nonisolated and will provide current in either of the following two ranges: 4 to 20 mA or 0 to 20 mA. The default output range is 0 to 20 mA.

1-1

1-2

1-3

Each module offers host of features including:

• Local microprocessor intelligence for advanced features

• Full functionality without switches or jumpers

• Multiple data ranges that can be independently programmed

in channel groups

• Lead breakage detection

• Overrange/underrange alarms

• Remote transmitter alarm

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1-2 About the FLEX Ex HART Analog Modules

How FLEX Ex Analog Modules Communicate with Programmable Controllers

FLEX Ex analog I/O modules provide best utility when used with ControlNet Ex products on the ControlNet network. Data connections are established between the I/O module and an Allen-Bradley programmable controller to transfer information between the two at a scheduled rate.

Input module information is then automatically made available in the PLC data table through the data connection. Reciprocally, output data information determined by the PLC program is also automatically transferred from the PLC data table to the output module through the data connection.

In addition, when the data connection is originally established, configuration information for the module is automatically transferred to it via the network.

Events After Cycling Power

You must apply intrinsically safe +/-V power to your FLEX Ex analog I/O modules. The following sequence of events occurs after power has initially been applied to your module:

• The module begins an internal diagnostic check. The channel 0 LED

indicator turns ON to indicate the check has begun. The indicator turns OFF when the check is finished.

• After the diagnostic check, module configuration information, selected

by the user and downloaded over the network, is applied by the module.

For more information on configuration options, see Chapter 2.

• Following the module configuration download for the 1797-IE8H

module, the module begins producing runtime data for the PLC.

• Following the module configuration download for the 1797-OE8H

module, the module applies configuration data to output channels.

• If any diagnostics or alarms are generated during normal module

operation, the data is returned to the PLC controller.

Publication 1797-6.5.3 - March 2006

About the FLEX Ex HART Analog Modules 1-3

Physical Features of Your Analog I/O Module

The module label identifies the keyswitch position, wiring and module type. Use the removable label to note individual designations per your application.

Indicators

Indicators are provided to identify input or output fault conditions, and to show when power is applied to the module. For example, the 1797-IE8H module is shown below.

1797-IE8H

Module Type

Removable Label

8 CHANNEL ANALOG INPUT

IN1IN0 IN2 IN3 IN4

Input Designators

IN5

1797-IE8

IN6 IN7

PWR

Keyswitch Position

Indicator (#3)

Power On Indicator

40070

Using Alarms on the 1797-IE8H Module

The 1797-IE8H FLEX Ex module is capable of generating four alarms:

• Underrange

• Overrange

• Remote Fault

• Local Fault

These alarm conditions are described in general terms and as they relate to bits on the FLEX Ex I/O module on the following pages. The following graphic shows at what values these alarms are generated for Data Format 4.

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1-4 About the FLEX Ex HART Analog Modules

0 mA 4 mA 20 mA 22 mA

Remote Fault Remote Fault

Data Format Alarm Example

In this example, the normal active data range is 4 to 20 mA. The alarms are generated in three overlapping bands.

PHYSICAL INPUT SIGNAL RANGE

Underrange Overrange

Local Fault

-25.00%

-12.50%

Programmable

in 20 0.1 mA

Steps by Error

Level 0.1 mA

Steps

Parameter

0.00%

Remote Transmitter Error

Up/Down Parameter

Determines Which of These

is Active

100.00% 112.50%

Programmable

in 20 0.1 mA

Steps by Error

Level 0.1 mA

Steps

Parameter

Overrange Alarm

The Overrange alarm notifies you when module input is overrange. When the input signal exceeds 100% (20 mA), an Overrange Alarm is generated.

This alarm stays active at any value above 100% of range and is always enabled by the module.

Underrange Alarm

41666

Publication 1797-6.5.3 - March 2006

The Underrange alarm works in a fashion converse to the overrange. This feature notifies you when the input signal falls underrange. If the input signal falls below 0% (4 mA), an Underrange Alarm is generated.

This alarm stays active at any value below 0% of range and is always enabled by the module.

About the FLEX Ex HART Analog Modules 1-5

Remote Fault Alarm

The Remote Fault Alarm is primarily intended for use with remote transmitter loops.

For example, the remote transmitter may be measuring temperature and converting it to a standard mA signal. In such a loop, though, the input module cannot determine the state of the loop on the far side of the transmitter. However, the remote transmitter may be capable of diagnosing a problem in the remote loop and signal the input module local loop with a preprogrammed out of range (high or low) value.

The Remote Fault Alarm allows the 1797-IE8H module to work with transmitters like the one just described. You must use the Remote Transmitter Error Up or Down feature, see page 2-3, to configure your application for Remote Fault notification.

For example, you must determine if you want a remote fault to cause high out of range values or low out of range values to be returned to the controller.

IMPORTANT

Once the alarm is issued, it remains active as long as the input signal value remains above the programmed value.

Use Remote Fault Alarm to Determine High High or Low Low Alarm Levels

If you do not have a remote transmitter in your loop, this alarm can also be used to program a high high or low low alarm level between the levels which actuate the overrange or underrange alarms and the high or low local fault alarms.

IMPORTANT

When establishing high high or low low alarms, you can only select one side (high or low). You must use the Remote Transmitter Error Up or Down feature in conjunction with this alarm.

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1-6 About the FLEX Ex HART Analog Modules

Program the Remote Fault Alarm

For the Remote Fault alarm, you must program the threshold in 0.1 mA steps at any level on the high or low end of input signal range. The Remote Fault alarm activates if your I/O module receives input signal values of:

• 100.63% (20.1 mA) to 111.88% (21.9 mA) on the high end of input

signal range

• -0.63% (3.9 mA) to -11.88% (2.1 mA) on the low end of input

signal range

IMPORTANT

This alarm is only active for one band, either on the high side of normal operation or the low side.The Remote Transmitter Error Up/Down parameter determines which side is active. See page 2-3 for a description of the Remote Transmitter Error Up/Down feature.

Local Fault Alarm

The Local Fault alarm notifies you when the loop to the transmitter or field device, if no transmitter is used, is open or shorted.

IMPORTANT

• 112.50% (22 mA) or higher on the high end of input signal range - This

value indicates a short in the loop.

Once the alarm is issued, it remains active as long as the input signal value remains in the programmed range.

Publication 1797-6.5.3 - March 2006

• -12.50% (2 mA) or lower on the low end of input signal range

- This value indicates an open wire condition in the loop.

The Remote Fault and Local Fault alarms are issued with the same bit whether the cause is an under or overrange. Monitor the Overrange and Underrange bits in your programming software to determine if the problem is a high current or low current.

About the FLEX Ex HART Analog Modules 1-7

How to Use the HART Capabilities

HART Implementation Overview

Before using the HART capabilities, be sure that:

• the I/O module and the associated field device are working properly in

the analog 4 to 20 mA mode.

• the I/O module is configured for 4 to 20 mA range.

• the field device is HART capable.

• no more than one HART field device is connected to each channel.

• input filtering is set to a valid (defined) value.

The FLEX Ex HART modules act as intelligent HART multiplexers. Basically, the module learns which HART devices are attached to its channels and then routes HART messages, as appropriate, between the HART field devices and the Flexbus. Since the HART modules act as intelligent HART multiplexers, HART commands can be issued to the HART modules themselves.

Communication on the Flexbus occurs between the adapter and the HART module. The adapter converts these messages to the appropriate network format for communication with the controlling controller. The controlling controller gets its command from the user program, storing the responses in its memory.

Controller

User Program

Command

For Example, ControlNet

Response

Adapter FLEX Ex HART

I/O Module

Flexbus 4 to 20 mA

HART Field Device

In its basic form, your ladder-logic program issues an MSG instruction containing a HART command. The MSG instruction is routed to the appropriate adapter and FLEX Ex I/O module. Upon receiving the message, the HART module routes the message to the appropriate channel and gathers the HART field device response. To retrieve this response, your ladder-logic program issues another MSG instruction.

Publication 1797-6.5.3 - March 2006

1-8 About the FLEX Ex HART Analog Modules

HART Commands

Building a usable HART command for the MSG instruction involves an understanding of how to create a standard HART command plus the additional knowledge of how to pack the message into a ControlNet frame. To simplify this process, you can download the ladder-logic program discussed here at http://www.ab.com/io. This ladder-logic program consists of a main program and several subroutines. Modify the main program to meet your application needs.

The first routine is HART_initialize. Use this routine after a power cycle or reset to enable HART functionality on a specific FLEX Ex HART module and to rebuild the associated HART loops to its field device(s). Once a FLEX Ex HART module is initialized, it remembers the HART addresses of the field devices and associates them to their corresponding analog channel. This routine calls the Get_Status_with_retry subroutine to poll an answer from the target I/O module.

The second routine is Send_Hart_SF. This routine accepts a generic HART message to a specific I/O channel and returns a generic HART response. This routine calls the Get_Message_with_retry subroutine to poll a response from the target I/O module.

The third routine is Purge. If a communication error is found, this routine is called to empty the HART buffer in the FLEX Ex HART I/O module.

Use the remaining routines to execute specific HART commands. Each routine is dedicated to its associated HART command. For example, the HART_CMD_3 issues a HART command 3 to the specified target device.

To issue a HART command, after the FLEX Ex HART I/O module is initialized, fill the tag HART_Target with the associated information to uniquely describe the path to the target. If the HART command requires information to be send to the target device, then fill a second tag with the appropriate information.

For example, to send a HART command 3, fill the HART_Target tag. As this is a HART read command, no other information is necessary. To send a HART command 35, fill the HART_Target tag. As this is a HART write command, also fill the CMD35_cmd tag with appropriate data.

Publication 1797-6.5.3 - March 2006

About the FLEX Ex HART Analog Modules 1-9

HART Target Tags

The HART_Target tag consists of four members:

• Path — HART_Target.Path

The Path specifies the direction the message follows to get to the desired target node. The data type is string.

• Slot — HART_Target.Slot

The Slot indicates the specific place where the I/O module is attached to the FLEX Ex adapter. The data type is SINT.

1 = the closest module to the adapter

8 = the module farthest from the adapter

0 = the adapter

• Channel

The Channel indicates which analog channel, 0 to 7, is desired. The data type is SINT.

• Host_Group

The FLEX Ex HART modules have two message-access ports into them allowing two systems to gather information from the module concurrently. The data type is SINT.

The HART_Groups are numbered either 1 or 2. If there are no other systems accessing the FLEX Ex Hart I/O module, that is, an asset management system, then select the first HART_Group by setting this value to 1.

IMPORTANT

If multiple owners access or control the same FLEX Ex HART I/O module and field device, they must maintain identical configurations.

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1-10 About the FLEX Ex HART Analog Modules

HART Command Tags

The response from the HART command routines is located in their associated reply tags:

• CMDx_Status (x is the specific command)

Table 1.1 CMDx_Status Tags

Tag Name Description Data Type

CMDx_Status.Started Indicates when the command is in

process

CMDx_Status.Done Indicates when the command has

completed without error

CMDx_Status.Error Indicates when the command has

completed with error

CMDx_Status.Error_Code If the CMDx_Status.Error bit is set,

the associated error code is placed here

CMDx_Status.Cmd_Performed If the CMDx_Status.Done bit is set,

the tag containing the HART command performed is placed here

BOOL

INT

• CMDx_Reply (x is the specific command)

This tag is only returned when the specific HART command has data in its reply. The CMDx_Reply tag contains the HART response reformatted to their associated data type.

Table 1.2 CMD3_Reply Tags Example

Tag Name Description Data Type

CMD3_Reply.Current_mA The measured current value REAL

CMD3_Reply.PV_Units_Code The units code for the primary value INT

Publication 1797-6.5.3 - March 2006

CMD3_Reply.Primary_Value The primary value REAL

CMD3_Reply.SV_Units_Code The units code for the secondary

value

CMD3_Reply.Secondary_Value The secondary value REAL

CMD3_Reply.TV_Units_Code The units code for the third value INT

CMD3_Reply.Third_Value The third value REAL

CMD3_Reply.FV_Units_Code The units code for the fourth value INT

CMD3_Reply.Fourth_Value The fourth value REAL

INT

About the FLEX Ex HART Analog Modules 1-11

You r Ladder-logic Program

HART_Target

CMDx_cmd

Status

CMDx_reply

HART_CMD_x

Convert CMD Data Type to Generic HART Frame

Convert Generic HART Reply Frame to Specific Reply Data Type

Generic_HART Command Frame

Generic_HART Reply Frame

Status

Send_HART_SF

Send Message to Target and Poll for a Response

HART Initialize Tags

The HART_Target tag consists of four members:

• Path — HART_Target.Path

The Path specifies the direction the message follows to get to the desired target node. The data type is string.

• Slot — HART_Target.Slot

The Slot indicates the specific place where the I/O module is attached to the FLEX Ex adapter. The data type is SINT.

1 = the closest module to the adapter

8 = the module farthest from the adapter

0 = the adapter

• Channel

The Channel indicates which analog channel, 0 to 7, is desired. The data type is SINT.

Publication 1797-6.5.3 - March 2006

1-12 About the FLEX Ex HART Analog Modules

• Host_Group

The FLEX Ex HART modules have two message-access ports into them allowing two systems to gather information from the module concurrently.

IMPORTANT

If multiple owners access or control the same FLEX Ex HART I/O module and field device, they must maintain identical configurations.

HART Initialize Channel Tags

The channel member of the HART_Target tag is a decimal number that indicates which channel is the target. The channels’ member of the HART_initialize tag consists of eight one bit flags.

0 = Search for a HART Field Device on the

Ch 7 Ch 6 Ch 5 Ch 4 Ch 3 Ch 2 Ch 1 Ch 0

IMPORTANT

To make the HART_initialize routine run effectively, only enable channels with active HART field devices.

Associated Channel

1 = Disables Searching for a HART Field Device on the Associated Channel

Publication 1797-6.5.3 - March 2006

About the FLEX Ex HART Analog Modules 1-13

Table 1.3 HART_Init_Status Tags

Tag Name Description Data Type

HART_Init_Status.Started Indicates when the command is in

process

HART_Init_Status.Done Indicates when the command has

completed without error

HART_Init_Status.Error Indicates when the command has

completed with error

HART_Init_Status.Error_Code If the CMDx_Status.Error bit is set,

the associated error code is placed here

HART_Init_Status.HART_Channels_ Found

If the CMDx_Status.Done bit is set, the tag containing the list of channels with active HART field devices

BOOL

INT

When these tags are initialized, a JSR to the HART_initialize routine is performed.

Modify Your Ladder-Logic Routine

With this background information, it is now time to modify the routine to meet the needs of your application. To do so, perform the following steps:

1. Make sure your wiring is correct and make note of your node address, the slot location of the FLEX Ex HART I/O module and the channel with your field device.

2. Load the program into Logix5000 software.

3. Modify the members of the HART_initialize tag to match your setup.

4. Modify the members of the HART_Target tag to match your setup.

5. If you plan to use a HART write command, which requires data to be

sent to the field device, modify the associated CMDx_cmd tag with the associated data.

6. Download the program to the ControlLogix controller.

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1-14 About the FLEX Ex HART Analog Modules

7. Place the controller into RUN mode.

This assumes you will re-write the Main Routine to meet your application.

8. Refer to the following list of error codes if an error is returned from one of the following routines:

Table 1.4 HART_Initialize Routine

Error Code Description

-1 Could not enable HART LEDs

-2 Could not rebuild HART loops

-3 Routine timed out

-4 Could not get status from Rebuild HART Loops command

Table 1.5 HART_CMD_x Routine

Error Code Description

-1 Invalid slot number

-2 Invalid expected data size

-3 Invalid Host Group number

-4 Could not get a response

Once you have modified your ladder-logic routine, the ladder logic will now call the HART_initialize routine. The yellow LEDs on the associated channels of the selected FLEX Ex HART module will start to flash. This indicates that the module has received the command and is in the process of searching for HART field devices on the associated channels. Upon successful completion of the HART_initialize routine, the HART_Init_Status_Done flag is set. At this point, the ladder logic will examine the contents of the HART_Cmd tag and attempt to issue the HART command associated with the decimal number contained in this tag. Any HART replies are placed in their associated CMDx_reply tag. To issue a different command, change the value of the HART_Cmd tag to match the desired HART Command.

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About the FLEX Ex HART Analog Modules 1-15

Selecting the Correct Path

The Path is a string that specifies the direction the message follows to get to a desired node. The MSG instruction requires a specific format for the string, consisting of a number sequence with each number separated by a $ sign. The message sequence is performed in sequential order from the perspective of the controller.

EXAMPLE

A path of $01$03$02$05 is interpreted as: $01 = Go out the backplane port of the 1756 controller

$03 = Go to the module in slot 3 of the 1756 chassis

(1)

$02 = Go out the front communications port of the module $05 = Go to node address 5

(1)

Assume that a 1756-CNB is in slot 3.

If you are using a ControlLogix system, the numbers $01 and the $02 will usually be in these sequence locations. The $03 may vary depending on the slot location of your network module. The $05 will vary according to your target address. If you need to bridge to other networks, then additional numbers will be needed in the sequence. For more details on this method, search in the Logix5000 Help.

Chapter Summary

In this chapter, you learned about FLEX Ex analog I/O modules and HART module capabilities. Move on to Chapter 2 to learn about configurable features on your module.

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1-16 About the FLEX Ex HART Analog Modules

Notes:

Publication 1797-6.5.3 - March 2006

Chapter

Understand Configurable FLEX Ex Analog Module Features

What This Chapter Contains

Read this chapter to familiarize yourself with configurable features on the input and output analog modules.

For See

Selecting a 1797-IE8H FLEX Ex Analog Input Module’s Operating Features

Selecting a 1797-OE8H FLEX Ex Analog Output Module’s Operating Features

Understanding Image Table Mapping and Bit/Word Descriptions

Instance: Slot number (range from 1 to 8 with 1 being the I/O module closest to the adapter

HART configurable features described in this chapter include:

Table 2.1 Analog/Digital Configurable Features on the FLEX Ex Analog I/O Modules

1797-IE8H Input Module Features 1797-OE8H Output Module Features

Fault Mode Output Enable

Remote Transmitter Error Up or Down Module Fault State Mode

High Low Error Level Local Fault Mode

2-2

2-7

2-12

2-19

Input Filter Cutoff Digital Output

Data Format Latch Retry Mode

Global Reset

Analog Digital State

Analog Fault State

Digital Fault State

Data Format

Fault Alarm

1 Publication 1797-6.5.3 - March 2006

2-2 Understand Configurable FLEX Ex Analog Module Features

Selecting a 1797-IE8H FLEX Ex Analog Input Module’s Operating Features

IMPORTANT

All features of the 1797-IE8H analog input module are independently configurable in two four-channel groups (channels 0 to 3 & channels 4 to 7).

IMPORTANT

You must use the I/O configuration portion of your PLC programming software to select and configure these features. This manual assumes familiarity with the programming software. A brief description of each module feature is provided here. For more information on your programming software, see the software user manual.

The default selection value for all parameters is 0.

Fault Mode

Your input modules are capable of indicating various fault conditions, depending on the input signal value. Use the Fault Mode feature to enable or disable two alarms:

• Remote Fault alarm

• Local Fault alarm

Use your programming software to set the Fault Mode bit to 0 to disable these alarms. Set the bit to 1 to enable them.

IMPORTANT

For more information on the Remote Fault Alarm, see page 1-5. For more information on the Local Fault Alarm, see page 1-6.

Fault Mode will only enable or disable the Remote and Local Fault alarms. It does not affect the Underrange and Overrange alarms. They are always active.

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Understand Configurable FLEX Ex Analog Module Features 2-3

Remote Transmitter Error Up or Down

A second feature of your input modules that affects use of the Remote Fault alarm is the Remote Transmitter Error Up or Down feature. Used in conjunction with the High Low Error level, this feature designates whether remote faults are displayed with input signal readings beyond the high or low signal levels normally used by the module.

When setting the Remote Transmitter Error Up or Down feature in your programming software, set this feature’s bit to 0 to select up. Set the bit to 1 to select down.

For more information on the Remote Fault Alarm, see page 1-5. For more information on the Local Fault Alarm, see page 1-6.

High Low Error Level

High Low Error level sets the high and low signal levels at which your input modules will indicate a signal fault. This feature works in conjunction with the Remote Transmitter Error Up or Down.

If the Remote Fault Alarm feature is enabled and a remote fault occurs, the module will detect and report the fault, depending on how the High Low Error level is configured.

Use your programming software to set the high or low error levels.

Input Filter Cutoff

Eight available input filter settings allow you to choose the best rolloff frequency for input channels on your I/O module. When choosing a filter, remember that time filter selection affects your input signal’s accuracy.

For example, if you choose the highest frequency of 10 Hz (filter 3), signal noise is more likely to affect the reading, but the slowest frequency of 0.5 Hz (filter 7) provides the most accurate signal due to incoming noise filtering.

See Table 2.2 to decide which input filter to use in your FLEX Ex analog I/O application:

Table 2.2 Input Filter Frequency

Filter 76543210

Frequency 0.5 Hz

(2 s)

1 Hz (1 s)

2 Hz (500 ms)

4 Hz (250 ms)

10 Hz (100 ms)

Reserved

Choose the best input filter cutoff in your programming software.

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2-4 Understand Configurable FLEX Ex Analog Module Features

(

)

(

)

Data Format

You must choose a module data format in your user program. For mats 8, 9, 10 and 15 are not used. If they are selected for a channel quad, a configuration fault will occur and will be reported as Diagnostic Data 2. All data for that channel quad will be set to zero (0).

• Formats 5, 12, 13 and 14 are 2’s complement data formats, and will

return data in that form.

• 12 Formats are available

• Default format is 0 to 20 mA

• The data format selected interprets input readings and returns them to

the PLC

Table 2.3 1797-IE8H Data Formats

controller

Data Format

Format Resolution Input

0 0…20 mA

as mA

1 0…20 mA

as %

2 0…20 mA

as √%

3 0…20 mA

as unsigned integer

4 4…20 mA

as mA

0.1% of 0…20 mA

0.2% of 0…20 mA

0.19% of 0…20 mA

0.03% of 0…20 mA

0.1% of 4…20 mA

Module Data Processing Data Table Value

Range

0…22 mA Datatable = 1000 (input) 0…22000

0…22 mA 0…11000

0…22 mA 0…10488

0…20 mA 0…65535

2…22 mA Datatable = 1000 (input) 2000…22000

Datatable = 10000

IF…Square_Root_Threshold

< 10000

Else…datatable = 0

Datatable = 65535

√

input

√

input

(Interpretation)

(0…22.000 mA)

(0…110.00%)

(0…104.88%)

(0…22 mA)

(2.000…22.000 mA)

Count per mA

1000 With

500

524

3276

1000

Error Steps

error steps

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Understand Configurable FLEX Ex Analog Module Features 2-5

(

)

(

)

(

)

(

)

(

)

(

)

Table 2.3 1797-IE8H Data Formats

Data Format

Format Resolution Input

5 4…20 mA

as %

6 4…20 mA

as √%

7 4…20 mA

as unsigned integer

Not assigned

11 0…20 mA

as A/D count

12 4…20 mA

as %

0.16% of 4…20 mA

0.17% of 4…20 mA

0.03% of 4…20 mA

0.04% of 0…20 mA

0.16% of 4…20 mA

Module Data Processing Data Table Value

Range

2…22 mA -1250 … +11250

4…22 mA 0…10607

4…20 mA 0…65535

0…22 mA 0…55000

3.6…21 mA

Datatable = 10000

IF…Square_Root_Threshold

< 10000

Else…datatable = 0

Datatable = 65535

Datatable = 55000

Datatable = 10000

√

input-4

input

input-4

(Interpretation)

(2’s complement) (-12.50% … +112.50%)

(0…106.07%)

(4…20 mA)

(0…22 mA)

-250 … +10625 ( 2 ’ s c o m p l e m e n t ) (-2.50… +106.25%)

Count per mA

625 With

589 With

4095 With

2500 All fixed

625 NAMUR

Error Steps

error steps

error steps, underrange not allowed

error steps

NE 4 all fixed

13 4…20mA

as %

14 4…20 mA

as %

15 Not assigned

0.16% of 4…20 mA

3…21 mA -625 … +10625

2…22 mA -1250 … +11250

Datatable = 10000

input-4

( 2 ’ s c o m p l e m e n t ) (-6.25… +106.25%)

( 2 ’ s c o m p l e m e n t ) (-12.50… +112.50%)

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All fixed

2-6 Understand Configurable FLEX Ex Analog Module Features

Data Formats and Error Ranges

0 mA 20 mA 22 mA

Normal Signal Range Overrange

Format 0 Format 1 Format 2 Format 3

Format 4 Format 5 Format 6 Format 7

Format 8 Format 9 Format 10 Format 11

0.00 mA

0.00%

0.00% 0

0 mA 20 mA 22 mA

Underrange

Remote Fault

Local fault

2 mA

-12.50%

0.00 mA

-25.00%

0 mA 20 mA 22 mA

2 mA 2 mA

Programmable

in 20

0.1 mA Steps

Normal Signal Range

PHYSICAL INPUT SIGNAL RANGE

20.00 mA

100.00%

100.00% 65535

Normal Signal Range

4.00 mA

0.00%

0.00% 0

Not Assigned Not Assigned Not Assigned

20.00 mA

100.00%

100.00% 65535

50000 5500055000

Programmable

in 20

0.1 mA Steps

Overrange

Programmable

in 20

0.1 mA Steps

Overrange

Remote Fault

22.00 mA

110.00%

104.88% 22 mA

Remote Fault

22.00 mA

112.50%

106.07% 22 mA

Remote Fault

Local Fault

Format 12 Format 13 Format 14 Format 15

0 mA 20 mA 22 mA

Overrange

Remote Fault

Underrange

Normal Signal Range

Local

-25.00%

Fault

-12.50%

-2.50%

-6.25%

-12.50%

-0.00%

Not Assigned

100.00%

106.25%

112.50%

Local Fault

41667

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Understand Configurable FLEX Ex Analog Module Features 2-7

Selecting a 1797-OE8H FLEX Ex Analog Output Module’s Operating Features

All features of the 1797-OE8H analog output module are independently configurable in two four-channel groups (channels 0 to 3 & channels 4 to 7).

IMPORTANT

The default selection value for all parameters is 0.

Local Fault Mode

The Local Fault Mode can be programmed to determine how the module responds to communications faults and internal module faults.

When setting the Local Fault Mode feature in your programming software, set this feature’s bit to 0 to use the analog fault state or digital fault state only if a communications fault occurs. Set the bit to 1 to use the analog fault state or digital fault state if any fault occurs.

Latch Mode

Latch Mode determines channel operation under wire off or lead break fault conditions. This feature controls the operation of two channel groups, channels 0 to 3 and channels 4 to 7. Channel detection occurs on a continuous basis. If a fault is detected, the channel fault alarm is set.

If Latch Mode is enabled when a fault occurs, the fault will remain latched in its fault state until a Global Reset (see below) is issued. If Latch Mode is disabled when a fault occurs, the channel reports a fault until the fault is corrected. Global Reset is not necessary if Latch Mode is disabled.

When using your programming software, set the Latch Mode bit to 0 to disable the feature. Set the bit to 1 to enable it.

Global Reset

Global Reset works in conjunction with Latch Mode during fault conditions. If Latch Mode is enabled and a fault condition occurs, the channel operating with a fault remains in this condition (with analog or digital fault state implied) until a Global Reset is issued. The Global Reset feature resets all outputs of a particular channel group to accept normal system output data.

The Global Reset feature is an edge triggered signal. Use your programming software to set the Global Reset bit to 1 for normal operation. Resetting of outputs occurs during the 1 to 0 transition.

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2-8 Understand Configurable FLEX Ex Analog Module Features

Analog Digital State

You can configure your FLEX Ex analog output modules to work in an analog mode or digital mode using the Analog Digital State feature. Depending on which state you choose for your application, additional parameters (see the descriptions of Analog Fault State and Digital Fault State on page 2-8) must be configured for your module to react to fault conditions.

Set the Analog Digital State bit in your programming software to 0 for your module to operate in an analog state. Set the bit to 1 for your module to operate in a digital state. A selection bit is available to each channel.

Analog Fault State

The Analog Fault State feature determines how your I/O module reacts to faults when a channel is used in analog mode. After a fault condition occurs, the module may got to minimum value, maximum value, hold last state or use analog fault state value.

Use your programming software to set the Analog Fault State bits on the I/O module for one of the following fault reactions:

• 0 = minimum value

• 1 = maximum value

• 2 = hold last state

• 3 = use analog fault state value

You can set these parameters independently for channels 0 to 1, 2 to 3, 4 to 5, 6 to 7.

Analog Fault State Value

Specifies the fault state value of the analog output data to the module. Specific format is controlled by the 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.

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Understand Configurable FLEX Ex Analog Module Features 2-9

Digital Fault State

The Digital Fault State feature determines how your I/O module reacts to faults when a channel is used in digital mode. After a fault condition occurs, the module may reset channel outputs or hold last state of the outputs.

Use your programming software to set the Digital Fault State bit to 0 to reset outputs. Set to 1 to hold last state of the outputs after a fault occurs. This feature is available on a per channel basis.

Data Format

You must choose a module data format in your user program. See 1797-OE8H Data Formats on page 2-10 for an explanation of each bit. Data Formats 2, 5, 6, 8, 9, 10, 12 and 15 are not assigned.

When choosing a data format, remember the following:

• If a non-assigned Analog Data Format is selected, the module sets

Diagnostic Data to 2 for configuration failure and puts affected channels affected in the corresponding fault state.

• An unconfigured module channel pair can be assumed to have the

default configuration Analog Data Format 0, 0 to 20 mA and Analog Mode Fault State minimum range. If a non-assigned format is selected, then the diagnostic 2 for configuration failure is set and the module channel pair goes to the default fault state minimum range.

• If the configuration had been changed, from the default, and then it was

changed again to a non-assigned format, then the diagnostic bit 2 for configuration failure is set and the module goes to the fault state for the last valid configuration.

• Formats 13 and 14 are 2’s complement data formats, and require data to

the module in that form.

• Range: 0 to 15

• Default: 0

• Data Table Reference: data format, word 12 and 13, bits 0 to 3, bits 4 to

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2-10 Understand Configurable FLEX Ex Analog Module Features

(

)

(

)

(

)

(

)

(

)

If data is sent to the module which is out of range, the value will be clipped and Diagnostic Data will be set to 11 data out of range.

datatable

20.000

16.000

12.000

8.000

4.000

0.000

Diagnos tic Data err or 11=data out of range

Table 2.4 1797-OE8H Data Formats

Data Format

0mA as

1 % as

2———Not assigned — ——

Format Resolution Full

Output Range

0…20 mA

0.1% of 0…20 mA

0.2% of 0…20 mA

0…22 mA 0…22000

0…22 mA 0…11000

Module Data Processing Data Table Value

Output =

Output = 20

-4.000 0 4 8 12 16 20 24

Output mA

(Interpretation)

datatable

1000

datatable

10000

(0…22.000 mA)

(0…110.00%)

Diagnostic Data error 11=data out of range

Count per mA

1000 Min=0 mA

500 Min=0 mA

Analog Fault State

Max=22 mA Hold last=hold 50%=11 mA

3 Unsigned

integer as 0…20 mA

4mA as

4…20 mA

5———Not assigned —

7 Unsigned

integer as 4…20 mA

Publication 1797-6.5.3 - March 2006

0.03% of 0…20 mA

0.1% of 4…20 mA

0.03% of 4…20 mA

0…20 mA 0…65535

2…22 mA 2000…22000

4…20 mA 0…65535

Output = 20

Output =

Output = 16

datatable

65535

datatable

1000

datatable

65535

+ 4

(0…22 mA)

(2.000…22.000 mA)

(4…20 mA)

3276 Min=0 mA

Max=20 mA Hold last=hold 50%=10 mA

1000 Min=2 mA

Max=22 mA Hold last=hold 50%=12 mA

——

4095 Min=4 mA

Max=20 mA Hold last=hold 50%=12 mA

Understand Configurable FLEX Ex Analog Module Features 2-11

(

)

(

)

(

)

Table 2.4 1797-OE8H Data Formats

Data Format

8———Not assigned — ——

11 D/A count

12 4…20 mA — — Not assigned — — —

13 % as

14 % as

Format Resolution Full

Output Range

as 0…20 mA

4…20 mA

0.28% of 0…20 mA

0.16% of 4…20 mA

0…22 mA 0…8000

3…21 mA -625 …+10625

2…22 mA -1250…+11250

Module Data Processing Data Table Value

(Interpretation)

Output = 22

Output = 16

datatable

8000

datatable

10000

datatable

10000

+ 4

(0…22 mA)

(2’s complement) (-6.25…+106.25 %)

(2’s complement) (-12.50…+112.5 0%)

Count per mA

363 Min=0 mA

625 Min=3 mA

625 Min=2 mA

Analog Fault State

Max=22 mA Hold last=hold 50%=11 mA

Max=21 mA Hold last=hold 50%=12 mA

Max=22 mA Hold last=hold 50%=12 mA

15———Not assigned — ——

Fault Alarm

Fault Alarm selects whether the channel pair fault detection is enabled or disabled. There is a 100 Hz (10 ms) filter for wire off/lead break detection.

Use your programming software to set the Fault Alarm. Set the feature bit to 0 to disable the alarm. Set the bit to 1 to enable wire off/lead break fault detection.

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2-12 Understand Configurable FLEX Ex Analog Module Features

Understanding Image Table Mapping and Bit/Word Descriptions

Bit Descriptions

Use the table below to understand bits used in image table mapping and bit/word descriptions. Complete definitions of these feature documented below can be found in Chapter 2.

Table 2.5 Bit/Word Descriptions

Bit(s) Location Definition

Ch 1797-IE8H Input and output maps

1797-OE8H Input and output maps

Ovr Alm 1797-IE8H Input map Overrange Alarm

Und Alm 1797-IE8H Input map Underrange Alarm

Rm Flt 1797-IE8H Input map Remote Fault

Lo Flt 1797-IE8H Input map Local Fault

Res Flg 1797-IE8H Input map

1797-OE8H Input map

U/D 1797-IE8H Output map Up/down

Flt Md 1797-IE8H Output map Fault Module

Cd Flg 1797-IE8H Output map

1797-OE8H Output map

Channel

Response Flag

Command Flag

Flt Alm 1797-OE8H Input map Fault Alarm

Glbl Rst 1797-OE8H Output map Global Reset

Lo Flt Md 1797-OE8H Output map Local Fault Module

Alg Flt Ste 1797-OE8H Output map Analog Fault State

Lth Rty 1797-OE8H Output map Latch Retry

Dig Flt Ste 1797-OE8H Output map Digital Fault State

Alg Dig Md 1797-OE8H Output map Analog Digital Module

Diagnostic Status

HRBD 1797-IE8H Input map

HRB 1797-IE8H Input map

HFAIL 1797-IE8H Input map

HTMT 1797-IE8H Input map

HCM 1797-IE8H Input map

1797-IE8H Input map 1797-OE8H Input map

1797-OE8H Input map

Diagnostic Status

HART Rebuild Flag

HART Readback Flag

HART Failure Flag

HART Transmitter Flag

HART Communication Flag

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Understand Configurable FLEX Ex Analog Module Features 2-13

Analog Input Module (1797-IE8H) Image Table Mapping

Table 2.6 Input Map (Read Words)

Bit

→

Word

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

↓

0 Channel 0 Input Data 1 Channel 1 Input Data 2 Channel 2 Input Data 3 Channel 3 Input Data 4 Channel 4 Input Data 5 Channel 5 Input Data 6 Channel 6 Input Data 7 Channel 7 Input Data 8Ovr

9Rm

Alm

Flt ch

Ovr

Alm

Flt ch

Ovr

Alm

Flt ch

Ovr

Alm

Flt ch

Ovr

Alm

Flt ch

Ovr

Alm

Flt ch

Ovr

Alm

Flt ch

Ovr

Alm

Flt ch

10 Reserved H

11 H

Rb ch

12 H

Tmt

Und Alm

Lo Flt ch

Rbd

Fail

7 H

Und

Alm

Flt

Reserved Diagnostic Status

Fail

Und Alm

Lo Flt ch

Fail

1 H

Und Alm

Lo Flt ch

Fail

0 H

Where: ch = channel

Ovr Alm = Over Range Alarm Und Alm = Under Range Alarm Rm Flt = Remote Fault Lo Flt = Local Fault H Rbd = HART Rebuild H Rb = HART Readback H Fail = HART Failure H Tmt = HART Transmitter H Cm = HART Communication

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2-14 Understand Configurable FLEX Ex Analog Module Features

Table 2.7 Configuration Map (Write Words)

→

Bit

Word

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

↓

0 Reserved High and Low Error Level 0…3 U/D

1 Sqrt High and Low Error Level 4…7 U/D

Where: U/D = up/down

Flt Md = Fault Module Sqrt = Square Root

Bit/Word Description for the Analog Input Module (1797-IE8H)

Table 2.8 Fault Mode - Write Words 0 and 1

Word 0 Bit 00 Fault enable for channels 0…3 Word 1 Bit 00 Fault enable for channels 4…7

Where: 0 = disabled

1 = enable with wire-off and overload or short circuit

0…3

4…7

Write

Filter Cutoff 0…3 Data Format 0…3 Flt

0…3

Filter Cutoff 4…7 Data Format 4…7 Flt

4…7

Table 2.9 Add-on Filter Selections - Write Words 0 and 1

Word Bits Description

0 070605Channels 0…3 1 070605Channels 4…7

000Reserved 001 010 0 1 1 10 Hz (100 ms) 1004 Hz (250 ms) 1012 Hz (500 ms) 1101 Hz (1 s)

1110.5 Hz (2 s)

Table 2.10 Remote Transmitter Error Up/Down - Write Words 0 and 1

Word 0 Bit 08 Up/down channels 0…3 Word 1 Bit 08 Up/down channels 4…7

Where: 0 = remote fault is enabled by transmitter overrange

1 = remote fault is enabled by transmitter underrange

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Understand Configurable FLEX Ex Analog Module Features 2-15

Table 2.11 Data Format - Write Words 0 and 1

Bits Description

Word 0 04030201Data format for channels 0…3 Word 1 04030201Data format for channels 4…7

00000…22 mA, w/error steps (default) 00010…22 mA = 0…110%, w/error steps 00100…22 mA = 0…104.8%, square root, w/error steps 00110…22 mA = 0…65,535, unsigned integer, w/error

steps 01002…22 mA, w/error steps 01012…22 mA = -12.5…112.5%, w/error steps 01104…22 mA = 0…106%, square root, w/error steps 01114…20mA = 0…65,535, unsigned integer, w/error steps 1000Not assigned 1001Not assigned 1010Not assigned 10110…22 mA = A/D count, w/fixed error

11003.6…21 mA = NAMUR NE 43, w/fixed error 11013…21 mA = -6.25…106.28% w/fixed error 11102…22 mA = -12.5…112.5% w/fixed error 1111Not assigned

Table 2.12 Error Level 0.1mA Steps

Bits Description

Word 0 131211109 Error level channels 0…3 Word 1 131211109 Error level channels 4…7

00000Disabled

0.1 mA * step value = remote fault alarm threshold Examples

Data Format 2…22 mA

00111Step value = 7, 0.1 mA * 7 = 0.7 mA

Remote fault alarm at -4.38% or +104.38%

01111Binary value = 15, 0.1 mA * 15 = 1.5 mA

Remote fault alarm at -9.38% or + 109.38%

-12.5…

112.5%

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2-16 Understand Configurable FLEX Ex Analog Module Features

Analog Output Module (1797-OE8H) Image Table Mapping

Table 2.13 Input Map (Read Words)

→

Bit

Word

0Flt

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

↓

Alm ch7

Flt

Alm

ch6

ch5

ch4

ch3

ch2

ch1

ch0 1 Reserved 2H

ch 7

Tmt

ch 7

Where: ch = channel

Flt Alm = Fault Alarm H Rbd = HART Rebuild H RB = HART Readback H Fail = HART Failure H Tmt = HART Transmitter H Cm = HART Communication

ch 6

Tmt

ch 6

ch 5

Tmt

ch 5

ch 4

Tmt

ch 4

ch 3

Tmt

ch 3

ch 2

H Tmt ch 2

ch 1

Tmt

ch 1

ch 0

Tmt

ch 0

Table 2.14 Output Map (Write Words)

→

Bit

Word

0Rese

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

↓

rved

Glbl

Reserved Dig

Rst

1 Channel 0 Output Data 2 Channel 1 Output Data 3 Channel 2 Output Data 4 Channel 3 Output Data 5 Channel 4 Output Data 6 Channel 5 Output Data 7 Channel 6 Output Data 8 Channel 7 Output Data

Where: ch = channel

Dig Out = Digital Output Glbl Rst = Global Reset

Fail

ch 7

Out

ch 7

Reserved Diagnostic Status

Fail

ch 1

ch 2

ch 3

ch 4

ch 5

ch 6

ch 1

ch 2

ch 3

ch 4

ch 5

ch 6

Dig

Out

ch 6

ch 5

ch 4

ch 3

ch 2

ch 1

Fail

ch 0

Dig Out

ch 0

Publication 1797-6.5.3 - March 2006

Table 2.15 Configuration Map (Write Words)

Understand Configurable FLEX Ex Analog Module Features 2-17

→

Bit

Word

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

↓

Dig

Flt

Ste

ch 1

Alg Flt

Ste

0…1

Alg Flt

Ste

4…5

Dig

Flt

Ste

ch 0

Alg Dig Md

ch 7

0 Lo Flt MdRese

rved

Flt

Ste

Lth Md

0…3

Dig

Flt

Ste

ch 6

1Lth

4…7

2Dig

ch 7

Flt

2…3

Flt

6…7

Dig

Flt

Ste

ch 5

Flt

0…1

Flt

4…5

Dig

Flt

Ste

ch 4

Dig

Flt

Ste

ch 3

Alg Flt

Ste

2…3

Alg Flt

Ste

6…7

Dig

Flt

Ste

ch 2

3 Analog Fault State Value Channel 0

4 Analog Fault State Value Channel 1

5 Analog Fault State Value Channel 2

6 Analog Fault State Value Channel 3

7 Analog Fault State Value Channel 4

8 Analog Fault State Value Channel 5

Data Format

ch 2…3

Data Format

ch 6…7

Alg

Dig

ch 6

ch 5

Alg Dig Md

ch 4

Alg Dig Md

ch 3

Data Format

ch 0…1

Data Format

ch 4…5

Alg

Dig

ch 2

ch 1

Alg Dig Md

ch 0

9 Analog Fault State Value Channel 6

10 Analog Fault State Value Channel 7

Where: ch = channel

Lo Flt Md = Local Fault Mode Flt Md = Fault Mode Alg Flt Ste = Analog Fault State Lth Md = Latch Mode Dig Flt Ste = Digital Fault State Alg Dig Md = Analog/Digital Mode Cd Flg = Command Flag

Publication 1797-6.5.3 - March 2006

2-18 Understand Configurable FLEX Ex Analog Module Features

Table 2.16 Data Format Control

Data Format

00000…20 mA0.1% of

Range Resolution Full

Range

0…22 mA 0…22 mA 0…2000 1000

Interpretation Data Table

0…20 mA

0001 0.2% of

0…110% 0…11000 500

0…20 mA 0010Not assigned 00114…20 mA0.03% of

0…20 mA 0100 0.1% of

0…20 mA Unsigned

integer

2…22 mA 2…22 mA 2000…

4…20 mA 0101Not assigned 0110 01114…20 mA0.03% of

4…20 mA

4…20 mA Unsigned

integer 1000Not assigned 1001 1010 10110…20 mA0.28% of

0…22 mA D/A count 0…8000 363

0…20 mA 1100Not assigned 11014…20mA0.16% of

4…20 mA

3…21 mA -6.25…

+106.25%

1110 2…22 mA-12.5…

+112.5%

1111Not assigned

Count per

Value

0…65535 3276

1000

22000

0…65535 4095

-625…

625

+10625

-1250…

625

+11250

Publication 1797-6.5.3 - March 2006

Understand Configurable FLEX Ex Analog Module Features 2-19

1797-IE8H and -OE8H

The FLEX Ex HART modules are addressed by using an MSG or CIO instruction. When using one of these instructions, configure it to the

Extended Configuration

following:

Data Table

• Class: 0x7D

• Instance:

module closest to the adapter

• Attribute: 0x66

• Service: 0x0E for a get attribute single or 0x10 for a set attribute single

Also, configure the communication path to the target I/O module.

For a set attribute single, configure two words as defined in the Extended Configuration Data Table to be sent to the I/O module.

For a get attribute single, two words configured as defined in the Extended Configuration Data Table will be returned from the instruction.

Table 2.17 1797-IE8H and -OE8H Extended Configuration Data Table

→

Bit

Word

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

↓

Slot number (range from 1 to 8 with 1 being the I/O

0PMI

1 Reserved HART Read Back Threshold

Where: ch = channel

PMI = Primary Master Inhibit SME = Secondary Master Enable HS LED = HART Status LEDs HS Inht = HART Status Inhibit

ch 7

PMI

ch 6

PMI

ch 5

PMI

ch 4

PMI ch 3

PMI ch 2

ch 4…7

PMI

ch 1

PMI

ch 0

SME ch 7

LED

SME

ch 6

Inht

SME

ch 5

50/

60 Hz

SME

ch 4

ch 3

ch 2

HART Read Back Threshold

ch 0…3

SME

ch 1

SME ch 0

Publication 1797-6.5.3 - March 2006

2-20 Understand Configurable FLEX Ex Analog Module Features

Secondary Master Enable (SME) and Primary Master Inhibit (PMI)

These two bits control a few module internal functions individually for channels 0 to 7.

Table 2.18

(1)

Bits

PMI 8, 9, 10, 11, 12, 13, 14, 15 0 0 1 1

SME 0, 1, 2, 3, 4, 5, 6, 7 0 1 0 1

HART Smooth Filter Pulsed On Off On

Rebuild On On Off Off

HART Read Back On On Off Off

Primary Master On On Off Off

Secondary Master Off On Off On

1Where:

Ch0 - bits 0 and 8; Ch1 - bits 1 and 9; Ch2 - bits 2 and 10; Ch3 - bits 3 and 11; Ch4 - bits 4 and 12; Ch5 - bits 5 and 13; Ch6 - bits 6 and 14; Ch7 - bits 7 and 15

1 (Default) 2 3 4

HART Status LEDs

When this bit is set, the LEDs are used for HART diagnostics. LED behavior changes to show communication on HART with each LED representing a HART loop. A flashing yellow LED indicates that communication is currently being processed while a solid yellow LED means that this device is in the transmitter list.

Publication 1797-6.5.3 - March 2006

HART Status Inhibit

When this bit is set, the HART communication status is not shown in the realtime data table to enable compatibility. The appropriate areas are cleared with zeroes.

50/60 Hz Filter

The values are:

• 0 = 50 Hz (default)

• 1 = 60 Hz

Understand Configurable FLEX Ex Analog Module Features 2-21

HART Read Back Threshold

This bit delivers the percentage value, in steps of 1%, of the threshold for forcing the HART read back indication. The maximum input signal deviation for HART analog modules is 31%.

If there is no HART transmitter on the loop or if the loop is not in the transmitter list, the function is switched off internally in the I/O module. The values are:

• 0 = disabled (default)

• 1 to 4 = not supported from the I/O module (set to 5 internally)

• 5 to 31 = percentage threshold data (5 to 31%)

Chapter Summary

In this chapter, we told you about the FLEX Ex system and the analog I/O modules, and how they communicate with programmable controllers. Move to Chapter 3 to learn how to install your FLEX Ex analog module.

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2-22 Understand Configurable FLEX Ex Analog Module Features

Notes:

Publication 1797-6.5.3 - March 2006

Chapter

How to Install Your FLEX Ex Analog Modules

What This Chapter Contains

Before You Install Your Analog Module

Read this chapter to install the input and output analog modules.

For See

Before You Install Your Analog Module 3-1

Compliance to European Union Directives 3-2

Installation in Zone 1 3-3

Removal and Insertion Under Power 3-4

Install the Module 3-4

Connecting Wiring to the FLEX Ex I/O Analog Modules

Ground the Module 3-14

Chapter Summary 3-15

Before installing your FLEX Ex analog module:

Table 3.1 Steps to Complete Before Installation

You Need To As Described Under

Verify that the module will be installed in a suitable metal enclosure

Position the keyswitch on the terminal base

3-11

Installation in Zone 1, page 3-3

Installing the Module, page 3-9

ATTENTION

1 Publication 1797-6.5.3 - March 2006

These modules do not receive primary operational power from the backplane. +/-V dc power must be applied to your module before installation. If power is not applied, the module position will appear to the adapter as an empty slot in your chassis.

3-2 How to Install Your FLEX Ex Analog Modules

Compliance to European Union Directives

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 89/336/EC Electromagnetic Compatibility (EMC) as amended by 92/31/EC and 93/68/EEC, by applying the following standards:

• EN61000-6-4:2001, Electromagnetic Compatibility (EMC) - Part 6-4:

Generic Standard for Industrial Environments (Class A)

• EN61000-6-2:2001, Electromagnetic Compatibility (EMC) - Part 6-2:

Generic Standards - Immunity for Industrial Environments

• EN61326-1997 + A1-A2, Electrical Equipment For Measurement,

Control, and Laboratory Use - Industrial EMC Requirements

ATEX Directive

These products are tested in conjunction with associated I/O modules to meet the Council Directive 94/9/EC (ATEX) Equipment and Protective Systems Intended for Use in Potentially Explosive Atmospheres by applying the following standards:

• EN50014:1997 + A1-A2, Electrical Apparatus for Potentially Explosive

Atmospheres

• EN50020:1994, Electrical Apparatus for Potentially Explosive

Atmospheres - Intrinsic Safety “i”

• EN50284:1999, Special Requirements for Construction, Test and

Marking of Electrical Apparatus of Equipment Group II, Category 1G

• EN50281-1-1:1998 + A1, Electrical Apparatus for Use in the Presence

of Combustible Dust - Part 1-1: Protection by Enclosure

Publication 1797-6.5.3 - March 2006

How to Install Your FLEX Ex Analog Modules 3-3

Installation in Zone 1

Installation in Zone 22

These modules must not be exposed to the environment. Provide a suitable metal enclosure. These modules have a protection factor of IP20.

WARNING

When the module is installed in Zone 22, the following cabinets must be used: IVK-ISRPI-V16LC; IVK-ISRPI-V8HYW; or IVK-ISRPI-V8LC. These cabinets can be purchased from:

Pepperl+Fuchs GmbH Konigsberger Allee 85-87, D-68307 Mannheim, Germany Attn: PA Sales Dept. Kirsten Becker Telephone +49 776 1298 www.pepperl-fuchs.com

These modules cannot be used in an intrinsically safe environment after they have been exposed to nonintrinsically safe signals.

Electrostatic Charge

The IS-RPI cabinets (type IVK2-ISRPI-V8LC, IVK2-ISRPI-V8HYW, or IVK-ISRPI-V16LC) ensures the basic protection for the intrinsically safe apparatus of the IS-RPI system for use in Zone 22. It corresponds with category 3D according to RL 94/9 EG and with the type label marked with the following information:

Pepperl+Fuchs GmbH 68301 Mannheim IVK2-ISRPI-V8LC (or IVK2-ISRPI-V8HYW or IVK-ISRPI-V16LC)

II 3D IP54 T 70°C CE Serial (manufacturing) number Model

Protect the system against electrostatic charge. Post a sign near this module: Attention! Avoid electrostatic charge. For your convenience, a sign which can be cut out and posted is included in this user manual before the back cover.

Publication 1797-6.5.3 - March 2006

3-4 How to Install Your FLEX Ex Analog Modules

Removal and Insertion Under Power

Install the Module

WARNING

Installation of the analog module consists of:

• Mounting the terminal base unit

• Installing the analog I/O module into the terminal base unit

• Installing the connecting wiring to the terminal base unit

These module are designed so you can remove and insert them under power. However, take special care when removing or inserting these modules in an active process. I/O attached to any module being removed or inserted can change states due to its input/output signal changing conditions.

If you insert or remove the terminal base while backplane 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.

If you are installing your module into a terminal base unit that is already installed, proceed to Mounting the Analog Modules on the Terminal Base on 3-9.

ATTENTION

Make certain that you power this terminal base module combination with an instrinsically safe power supply. Do not exceed the values listed in the specifications for the terminal base or module.

Do not use the unused terminals on the terminal base unit. Using the terminals as supporting terminals can result in damage to modules and/or unintended operation of your system.

Publication 1797-6.5.3 - March 2006

Mount on a DIN Rail

How to Install Your FLEX Ex Analog Modules 3-5

ATTENTION

Do not remove or replace a terminal base unit when power is applied. Interruption of the flexbus can result in unintended operation or machine motion.

1. Remove the cover plug in the male connector of the unit to which you are connecting this terminal base unit.

2. Check to make sure that the 16 pins in the male connector on the adjacent device are straight and in line so that the mating female connector on this terminal base unit will mate correctly.

3. Make certain that the female flexbus connector is fully retracted into the base unit.

4. Position the terminal base over the 35 x 7.5mm DIN rail A (A-B pt. no. 199-DR1).

Position terminal base at a slight angle and hooked over the top of the DIN rail A.

41106

Publication 1797-6.5.3 - March 2006

3-6 How to Install Your FLEX Ex Analog Modules

41107

Slide the terminal base over tight against the adapter (or proceeding terminal base). Make sure the hook on the terminal base slides under the edge of the adapter (or proceeding terminal base) and the flexbus connector is fully retracted.

ATTENTION

Do not force the terminal base into the adjacent modules. Forcing the units together can bend or break the hook and allow the units to separate and break communication over the backplane.

5. Rotate the terminal base onto the DIN rail with the top of the rail hooked under the lip on the rear of the terminal base.

Use caution to make sure that the female flexbus connector does not strike any of the pins in the mating male connector.

41108

Press down on the terminal base unit to lock the terminal base on the DIN rail. If the terminal base does not lock into place, use a screwdriver or similar device to open the locking tab, press down on the terminal base until flush with the DIN rail and release the locking tab to lock the base in place.

Publication 1797-6.5.3 - March 2006

41109

Gently push the flexbus connector into the side of the adapter (or proceeding terminal base) to complete the backplane connection.

How to Install Your FLEX Ex Analog Modules 3-7

6. For specific wiring information, refer to the installation instructions for the module you are installing in this terminal base unit.

Terminal assignments are also given later in this chapter, see page 3-11.

7. Repeat the above steps to install the next terminal base.

8. Be sure the flexbus connector cover on the last terminal base is in place.

Panel/Wall Mount

Installation on a wall or panel consists of:

• Laying out the drilling points on the wall or panel

• Drilling the pilot holes for the mounting screws

1 - Mounting Plate for Adapter 2 - 18 #6 Self-tapping Screws

(2 for the Adapter, and 2 Each for Up to 8 Modules)

Adapter Module (Not Included)

• Mounting the adapter mounting plate

• Installing the terminal base units and securing them to the wall or panel

If you are installing your module into a terminal base unit that is already installed, proceed to Mounting the Analog Modules on the Terminal Base Unit on page 3-9.

Use the mounting kit Cat. No. 1794-NM1 for panel/wall mounting.

1.4

(35.5)

41547

Terminal Base Unit (Not Included)

Publication 1797-6.5.3 - March 2006

3-8 How to Install Your FLEX Ex Analog Modules

To install the mounting plate on a wall or panel:

1. Lay out the required points on the wall/panel as shown in the drilling dimension drawing.

Drilling Dimensions for Panel/Wall Mounting of FLEX Ex I/O

(2.0)

35.5

(0.51)

.83 (21)

(In)

ATTENTION: Be careful of metal chips when drilling cable mounting holes. Do not drill holes

above a system that has any modules installed.

58.5 (2.3)

35.5 (1.4)

58.5 (2.3)

Cable length

approximately

292.1 (11.5) or

901.0 (35.5) from upper connector

[length depends

upon cable - 0.3 m

(1 ft) or 0.091 m

(3 ft)]

35.5 (1.4)

40.5 (1.6)

15.6

(0.61)

(0.3)

-V V

-V

40871

2. Drill the necessary holes for the #6 self-tapping mounting screws.

3. Mount the mounting plate (1) for the adapter module using two #6

self-tapping screws (18 included for mounting up to 8 modules and the adapter).

IMPORTANT

Make certain that the mounting plate is properly grounded to the panel. Refer to Industrial Automation Wiring and Grounding Guidelines, publication 1770-4.1.

4. Hold the adapter (2) at a slight angle and engage the top of the mounting plate in the indention on the rear of the adapter module.

5. Press the adapter down flush with the panel until the locking lever locks.

Publication 1797-6.5.3 - March 2006

How to Install Your FLEX Ex Analog Modules 3-9

6. Position the terminal base unit up against the adapter and push the female bus connector into the adapter.

7. Secure to the wall with two #6 self-tapping screws.

8. Repeat for each remaining terminal base unit.

Mounting the Analog Modules on the Terminal Base Unit

The analog input and output modules mount on a 1797-TB3 or TB3S intrinsically safe terminal base unit.

1. Rotate keyswitch (1) on terminal base unit (2) clockwise to position 3 for the 1797-IE8H or position 4 for the 1797-OE8H as required for each type of module.

Do not change the position of the keyswitch after wiring the terminal base unit.

Label under here or under here

40231

2. Make certain the flexbus connector (3) is pushed all the way to the left to connect with the neighboring terminal base/adapter. You cannot install the module unless the connector is fully extended.

Publication 1797-6.5.3 - March 2006

3-10 How to Install Your FLEX Ex Analog Modules

3. Make sure the pins on the bottom of the module are straight so they will align properly with the connector in the terminal base unit.

4. Position the module (4) with its alignment bar (5) aligned with the groove (6) on the terminal base.

5. Press firmly and evenly to seat the module in the terminal base unit. The module is seated when the latching mechanism (7) is locked into the module.

6. Make certain that you only connect terminal base units to other intrinsically safe system modules or adapters to maintain the integrity of the intrinsically-safe backplane.

7. Remove cap plug (8) and attach another intrinsically safe terminal base unit to the right of this terminal base unit if required.

Make sure the last terminal base has the cap plug (8) in place.

Wire the Terminal Base Units

41307

The adapter is capable of addressing eight modules. Do not exceed a maximum of eight terminal base units in your system.

Wiring the FLEX Ex I/O analog modules is done through the 1797-TB3 and 1797-TB3S terminal base units.

ATTENTION

The FLEX Ex analog I/O modules do not receive primary operational power from the backplane. +/-V dc power must be applied to your module before operation. If power is not applied, the module position will appear to the adapter as an empty slot in your chassis. If the adapter does not recognize your module after installation is completed, cycle power to the adapter.

Make certain that you power these modules with an intrinsically safe power supply. Do not exceed the values listed in the specifications for the modules.

Publication 1797-6.5.3 - March 2006

How to Install Your FLEX Ex Analog Modules 3-11

Connecting Wiring to the FLEX Ex I/O Analog Modules

Inputs/Outputs

Each 1797-IE8H input can be operated from an analog field device signal, and each 1797-OE8H output channel can operate an analog field device. Do not apply any non-intrinsically safe signals to these modules.

IMPORTANT

When using an intrinsically safe electrical apparatus according to EN50020, the European Community directives and regulations must be followed.

The channels of the 1797-IE8H are electrically connected to each other and have a common plus-line. The channels of the 1797-OE8H are electrically connected to each other.

IMPORTANT

When interconnecting several lines, you must consider the total accumulated power and check for intrinsic safety.

Connections for the 1797-IE8H Module

Row B

Row A

Row C

-V

4 to 20mA

Xmit

flexbus

10 234 5678 9101112131415

Ch 0 Ch 1 Ch 2 Ch 3

Ch 4 Ch 5 Ch 6 Ch 7

+V +V–V –V

Bus

1797-IE8H Module

No connection allowed

91 Ω 17V

+ sig –+ sig –+ sig –

sig

22 Ω

+ sig –

28 29 30 31 32 3322 23 24 25 26 2716 17 18 19 20 21

+ sig –+ sig –+ sig –+ sig –

46 47 48 49 50 5140 41 42 43 44 4534 35 36 37 38 39

No connection allowed

4 to 20mA

Xmit

40072

40071

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3-12 How to Install Your FLEX Ex Analog Modules

For Two-Wire Transmitter Devices

1. Connect the individual input wiring to (+) terminals (0, 4, 8, 12) on the 0 to 15 row (A) and on the 16 to 33 row (B) (terminals 17, 21, 25, 29) as indicated in the table below.

2. Connect the associated input to the corresponding (sig) terminal (1, 5, 9,

13) on the 0 to 15 row (A), and on the 16 to 33 row (B) (terminals 18, 22, 26, 30) for each input as indicated in the table below.

3. Connect +V dc power to terminal 34 on the 34 to 51 row (C).

4. Connect -V to terminal 35 on the 34 to 51 row (C).

5. If continuing power to the next terminal base unit, connect a jumper

from terminal 50 (+V) on this base unit to terminal 34 on the next base unit.

6. If continuing common to the next terminal base unit, connect a jumper from terminal 51 (-V) on this base unit to terminal 35 on the next base unit.

Table 3.2 Wiring Connections for the 1797-IE8H Module

Input Input

Source

Input 0 A-0 A-1 A-2 Input 4 B-17 B-18 B-19

Input 1 A-4 A-5 A-6 Input 5 B-21 B-22 B-23

Input 2 A-8 A-9 A-10 Input 6 B-25 B-26 B-27

Input 3 A-12 A-13 A-14 Input 7 B-29 B-30 B-31

+V Terminals 34 and 50

-V Terminals 35 and 51

Terminals 16, 33, 40, 41, 42, 43, 44 and 45 are connected to chassis ground.

ATTENTION

Input Signal

Input Return

Input Input

Source

Input Signal

Input Return

Do not use the unused terminals on the terminal base unit. Using these terminals as supporting terminals can result in damage to the module and/or unintended operation of your system.

Publication 1797-6.5.3 - March 2006

Connections for the 1797-OE8H Module

flexbus

Bus

How to Install Your FLEX Ex Analog Modules 3-13

power supply

-V

4 to 20mA valve

1797-OE8H Module

Row A

Row B

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

+- + - +- +-

ch0

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33

+ +++----

ch4 ch5 ch6

34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51

Row C

+V +V-V -V

No connections allowed to terminals 2, 3, 6, 7, 10, 11, 14, 15, 19, 20, 23, 24, 27, 28, 31, 32, 36, 37, 38, 39, 46, 47, 48, 49

ch1 ch2 ch3

ch7

1. Connect the individual output wiring to (+) terminals (0, 4, 8, 12) on the 0 to 15 row (A) and on the 16 to 33 row (B) (terminals 17, 21, 25, 29) as indicated in the table below.

4 to 20mA actuator

41441

41440

2. Connect the associated output to the corresponding (-) terminal (1, 5, 9,

13) on the 0 to 15 row (A), and on the 16 to 33 row (B) (terminals 18, 22, 26, 30) for each input as indicated in the following table.

3. Connect +V dc power to terminal 34 on the 34 to 51 row (C).

4. Connect -V to terminal 35 on the 34 to 51 row (C).

5. If continuing power to the next terminal base unit, connect a jumper

from terminal 50 (+V) on this base unit to terminal 34 on the next base unit.

6. If continuing common to the next terminal base unit, connect a jumper from terminal 51 (-V) on this base unit to terminal 35 on the next base unit.

Publication 1797-6.5.3 - March 2006

3-14 How to Install Your FLEX Ex Analog Modules

Table 3.3 Wiring connections for the 1797-OE8H Module

Output Output + Output – Output Output + Output –

Output 0 A-0 A-1 Output 4 B-17 B-18

Output 1 A-4 A-5 Output 5 B-21 B-22

Output 2 A-8 A-9 Output 6 B-25 B-26

Output 3 A-12 A-13 Output 7 B-29 B-30

+V Terminals 34 and 50

-V Terminals 35 and 51

Terminals 16, 33, 40, 41, 42, 43, 44 and 45 are connected to chassis ground.

Ground the Module

ATTENTION

Do not use the unused terminals on the terminal base unit. Using these terminals as supporting terminals can result in damage to the module and/or unintended operation of your system.

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.

Publication 1797-6.5.3 - March 2006

30820

How to Install Your FLEX Ex Analog Modules 3-15

Chapter Summary

In this chapter, we told you how to install your input module in an existing programmable controller system and how to wire to the terminal base units.

Move to chapter 4 to learn about input, output and configuration files for the analog I/O modules on ControlNet.

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3-16 How to Install Your FLEX Ex Analog Modules

Notes:

Publication 1797-6.5.3 - March 2006

Chapter

Input, Output and Configuration Files for the Analog I/O Modules on the ControlNet Network

What This Chapter Contains

Read this chapter to familiarize yourself with input, output and configuration files for analog I/O modules on the ControlNet network.

For See

Using Programming Software in Your FLEX Ex Application

About the ControlNet Ex Adapter 4-2

Communication Over the FLEX Ex Backplane 4-3

I/O Structure 4-5

Fault State Data 4-7

Device Actions 4-7

Chapter Summary 4-8

In this chapter, you will learn about:

• Using software to configure the FLEX Ex I/O modules

• ControlNet Ex Adapter

• I/O structure

• Fault state data

• Communication fault data

• Idle state behavior

• Input data behavior upon module removal

4-2

IMPORTANT

This chapter provides a brief description of the steps you must take in your programming software to configure FLEX Ex I/O modules and an overview of what occurs during configuration.

For a full explanation of how to use your programming software to perform module configuration, use the software online help.

1797-6.5.3 - March 2006

4-2 Input, Output and Configuration Files for the Analog I/O Modules on the ControlNet Network

Using Programming Software in Your FLEX Ex Application

When using FLEX Ex I/O analog modules, you must perform I/O mapping and configure the ControlNet network before generating configuration data for your I/O modules.

For example, you may use RSNetWorx software to connect FLEX Ex I/O modules to a ControlNet controller or scanner through a FLEX Ex ControlNet Ex adapter (cat. no. 1797-ACNR15). The I/O configuration portion of another programming software, for example RSLogix5 software could be used to generate the configuration data for each I/O module in the control system.

Configuration data is transferred from the controller to the I/O modules when communication to the modules is first established.

Follow these general guidelines when configuring I/O modules:

1. Perform I/O mapping.

2. Configure all I/O modules.

3. Change to Run mode to initiate communication

4. Download module configuration.

About the ControlNet Ex Adapter

The FLEX Ex ControlNet Ex adapter interfaces up to eight FLEX Ex modules to a ControlNet controller or scanner. The adapter can support ControlNet real-time data connections to individual modules or module groups. Each connection is independent of the others and can be from different controllers or scanners.

Publication 1797-6.5.3 - March 2006

Input, Output and Configuration Files for the Analog I/O Modules on the ControlNet Network 4-3

Communication Over the FLEX Ex Backplane

Network

ControlNet Ex Adapter

Write

One 1797-ACNR15/B ControlNet Ex adapter can interface up to eight terminal base units with installed FLEX Ex modules, forming a FLEX Ex system of up to eight slots.

The adapter communicates to other network system components (typically one or more controllers or scanners, and/or programming terminals) over the ControlNet network. The adapter communicates with its I/O modules over the FLEX Ex backplane.

Read

I/O Module I/O ModuleI/O Module

Inputs Inputs Inputs

Status

Outputs

Configuration Configuration Configuration

Slot 0 Slot 1 Slot 7

Read Words

Write Words

StatusStatus

OutputsOutputs

Configuration data is not continuously updated to the module.

41626

Scheduled Data Transfer

Scheduled data transfer:

• is continuous.

• is asynchronous to the controller program scan.

• occurs at the actual rate displayed in the Actual Packet Interval field on

the programming software ControlNet I/O mapping (monitor) dialog

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4-4 Input, Output and Configuration Files for the Analog I/O Modules on the ControlNet Network

Unscheduled Data Transfer

Unscheduled operations include:

• Unscheduled non-discrete I/O data transfers–through ControlNet I/O

Transfer (CIO) instructions

• Peer-to-peer messaging–through message (MSG) instructions

• Messaging from programming devices

Unscheduled messaging on a ControlNet network is non-deterministic. Your application and your configuration, that is, the number of nodes, application program, NUT, amount of scheduled bandwidth used, determine how much time there is for unscheduled messaging.

Module I/O Mapping

The I/O map for a module is divided into read words and write words. Read words consist of input and status words, and write words consist of output and configuration words. The number of read words or write words can be 0 or more.

The length of each I/O module’s read words and write words vary in size depending on module complexity. Each I/O module will support at least 1 input word or 1 output word. Status and configuration are optional, depending on the module.

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Input, Output and Configuration Files for the Analog I/O Modules on the ControlNet Network 4-5

I/O Structure

Network READ

Network WRITE

Output data is received by the adapter in the order of the installed I/O modules. The output data for slot 0 is received first, followed by the output data for slot 1, and so on up to slot 7.

The first word of input data sent by the adapter is the Adapter status word. This is followed by the input data from each slot, in the order of the installed I/O modules. The input data from slot 0 is first after the status word, followed by input data from slot 1, and so on up to slot 7.

ControlNet Adapter

Read Data

Adapter Status

Slot 0 Input Data

Slot 1 Input Data

Slot 7 Input Data

Slot 0 Output Data Slot 1 Output Data

Read

Write

I/O

Module

Slot 0

I/O

Module

Slot 1

I/O

Module

Slot 7

Slot 7 Input Data

Adapter Status Word

The status word consists of:

• I/O module fault bits – 1 status bit for each slot

Additionally, in the case of a PLC-5 controller, it adds:

• Node address changed – 1 bit (created by PLC-5 controller)

• I/O status – 1 bit (created by PLC-5 controller)

41628

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4-6 Input, Output and Configuration Files for the Analog I/O Modules on the ControlNet Network

The following FLEX Ex adapter status word for a PLC-5 controller results.

Bit: 15 910…15 8 7 6 5 4 3 2 1 0

I/O Module Fault Bits

Created by PLC-5 controller

Bit Description Bit Explanation

I/O Module Fault

Node Address Changed (Created by PLC-5 controller.)

I/O Status Bit

Node Address Changed Bit

41629

As an example, in a PLC-5 system, the adapter status word bit descriptions are shown in the following table.

Table 4.1 Adapter Status Word Bit Descriptions

0 This bit is set (1) when an error is detected in slot position 0.

1 This bit is set (1) when an error is detected in slot position 1.

2 This bit is set (1) when an error is detected in slot position 2.

3 This bit is set (1) when an error is detected in slot position 3.

4 This bit is set (1) when an error is detected in slot position 4.

5 This bit is set (1) when an error is detected in slot position 5.

6 This bit is set (1) when an error is detected in slot position 6.

7 This bit is set (1) when an error is detected in slot position 7.

8 This bit is set (1) when the node address switch setting has

been changed since power-up.

I/O State (Created by PLC-5 controller.)

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9 Bit = 0 - idle

Bit = 1 - run

10…15 Not used – set to 0

Input, Output and Configuration Files for the Analog I/O Modules on the ControlNet Network 4-7

Possible causes for an I/O module fault are:

• Transmission errors on the FLEX Ex backplane

• Failed module

• Module removed from its terminal base

• Incorrect module inserted in a slot position

• Slot is empty

• Slot contains a non-discrete module

Fault State Data

Device Actions

The FLEX Ex HART modules provides storage for alternate module output data during communication faults or controller idle state. This fault state data assures that a known output will be applied to the output devices during the previously mentioned modes.

The controller or scanner software must include the means to specify this fault state data for each module. If applicable, this data is sent in the configuration block, see Image Table Mapping on page 2-12.

Device actions include:

• Communication fault behavior

• Idle state behavior

• Input data behavior upon module removal

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4-8 Input, Output and Configuration Files for the Analog I/O Modules on the ControlNet Network

Communication Fault Behavior

You can configure the response to a communication fault for each I/O module in its system. Upon detection of a communication fault, the module can:

• Leave the module output data in its last state (hold last state)

• Reset the module output data to zero (reset)

• Apply fault state data to the module output

Idle State Behavior

The FLEX Ex HART I/O module can detect the state of the controlling controller or scanner. Only 2 states can be detected: run mode, or program mode (idle).

Chapter Summary

When run mode is detected, the adapter copies the output data received from the controller to the corresponding module output. When program mode is detected, the I/O module can be configured to:

• Leave the module output data in its last state (hold last state)

• Reset the module output data to zero (reset)

• Apply fault state data to the module output

In this chapter you learned about input, output and configuration files for the analog I/O modules on ControlNet. Move to Chapter 5 to learn how to calibrate your module.

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Calibrate Your Module

Chapter

What This Chapter Contains

Use this chapter to calibrate the FLEX Ex analog I/O modules.

For See

When and How to Calibrate Your FLEX Ex Analog I/O Module

Tools and Equipment 5-2

1797-IE8H Calibration Features 5-3

1797-IE8H Calibration Command Structure 5-4

1797-IE8H Calibration Command Byte 5-5

1797-IE8H Calibration Item Byte Channel-Mask

1797-IE8H Calibration with Offset and Gain 5-11

1797-OE8H Calibration Features 5-12

1797-OE8H Calibration Command Byte 5-13

1797-OE8H Calibration Item Byte Channel-Mask

1797-OE8H Calibration Flowchart Procedure 5-21

IMPORTANT

This chapter provides a detailed method to perform module calibration with individual commands. This discussion is only given here to explain the general process.

5-2

5-8

5-19

In practice, you must use the I/O configuration portion of your programming software to calibrate your modules. The software executes the methodology explained here.

1 Publication 1797-6.5.3 - March 2006

5-2 Calibrate Your Module

When and How to Calibrate Your FLEX Ex Analog I/O Module

Your module is shipped already calibrated. If a calibration check is required, the module must be in a FLEX Ex I/O system.

Perform module calibration periodically, based on your application. Module calibration may also be required to remove module error due to aging of components in your system.

ATTENTION

Use one of these general methods to calibrate your module:

• Intrinsically safe equipment

• Factory trained personnel under controlled conditions with

non-intrinsically safe equipment to maintain your module’s intrinsic safety certification

ATTENTION

Your FLEX Ex analog I/O modules are intrinsically safe equipment. This module cannot be used in instrinsically safe environment after having been exposed to non-intrinsically safe signals.

Calibration personnel must use extreme care to avoid compromising the intrinsically safe characteristics of the modules. This method may never be used in a hazardous environment.

Tools and Equipment

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Use the following tools and equipment to calibrate your analog I/O modules:

Table 5.1 Tools for Calibration

Tool or Equipment Description

Precision Current Source 0…22 mA, 0.01 µA

resolution

Precision Current Meter 0…22 mA, 0.01 µA

resolution

Industrial Terminal and Interconnect Cable

Programming terminal for A-B family controllers

Used for input modules

Used for output modules

Calibrate Your Module 5-3

1797-IE8H Calibration Features

The following features are unique to the 1797-IE8H module:

• There are two different values per channel that need to be calibrated:

gain and offset at room temperature (25 °C).

• All values are stored in the I/O module non-volatile EEPROM.

• You can calibrate each channel separately or a specified number of

channels together in respect of one value.

• If an offset value is calibrated, the corresponding gain value is invalid

because the gain value depends on the actual offset value. Therefore, the gain values have to be calibrated after the offset values.

• After calibration, the actual date must be transmitted to the IOM and

stored in the module non-volatile.

• The whole calibration can be set to default values by sending a reset

command. The default date is Jan,01,2000.

• A specified calibration value can be set to default by sending a reset

command for that channel.

• There is a special command to store the whole calibration data from

RAM to EEPROM within the I/O module.

• If one value, except the calibration date, isn’t calibrated yet, or if you set

one value to default, the I/O module displays a calibration error within the Real Time Data diagnostic field.

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5-4 Calibrate Your Module

1797-IE8H Calibration

Calibration of the HART I/O module is performed using data structures and MSG Ladder-logic instructions. The MSG instruction sends the data structure

Command Structure

to a dedicated attribute in the FLEX HART I/O module and the associated response is read from the same attribute. The data structure contains commands and its associated parameters. Depending on the command, they are either writable or readable. Only one access, either read or write, is executable at a time.

The Calibration data structure has four members: Command, Item, Data1, and Data2.

Table 5.2 Calibration Data Structure

Attribute Field Size Implementation Description Value (Hex) Access

hex

4 byte struct { Conditional Read or write

USINT Command; Calibration

command;

USINT Item; Additional command

information;

USINT Data1; Data according to

command;

USINT Data2; Data according to

command

} Calibration;

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Calibrate Your Module 5-5

1797-IE8H Calibration Command Byte

The Calibration command byte uses the following format to write to the module:

76543210

Calibration command

Reserved (10

The Calibration command byte uses the following format to read from the module:

must be written)

bin

76543210

Last Calibration command mirrored back

Status of last written Calibration command

= last written command executed/idle

bin

= error occurred during execution of last

bin

command, command aborted

= last written command pending

bin

= reserved

bin

Table 5.3 1797-IE8H Calibration Command List

Calibration Command (Decimal)

Function

Bits 0…5

0 Reserved

1 Calibrate offset at 25 °C

2 Calibrate gain at 25 °C

3…7 Reserved

8 Set all calibration values to default

9 Set one specified calibration value to

default

10…13

Reserved

(1)

14 Save calibration content to EEPROM

15…63 Reserved

(1)

Used during manufacture of the product. Do not use.

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5-6 Calibrate Your Module

Table 5.4 1797-IE8H Interpretation of Command Data Structure Content During Write Access

Command Byte Item Byte Data1 Byte Data2 Byte

Reserved (Binary) Command Bits 0…5 (Decimal)

(1)

1 Calibrate offset at 25 °C Channel-Mask

Reserved

(4)

Reserved

2 Calibrate gain at 25 °C

3…7

Reserved

(2)

8 Set all calibration values to default

—

Reserved

(4)

Reserved

(2)

(4)

—

Reserved

9 Set one specified calibration value to default Value identifier (0)

Reserved

(3)

(4)

14 Save calibration content to EEPROM

15…63

(1)

Always must be 10

(2)

Do not use. Designated for future use.

(3)

Reserved. Used during manufacture of the product. Do not use.

(4)

In attempt to write this byte, write 0.

bin

Reserved

(2)

Reserved

———

(3)

(4)

Reserved

(3)

(4)

Reserved

(4)

(3)

(4)

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Calibrate Your Module 5-7

Table 5.5 1797-IE8H Interpretation of Calibration Data Structure Content During Read Access (Idle Status)

Command Byte Item Byte Data1 Byte Data2 Byte

Status (Binary) Command Bits 0…5 (Decimal)

00 Idle 0 Nothing is done. The state after power on. 0 0 0

1 Calibration of offset at 25 °C is done according to

Channel-Mask

channel-mask

2 Calibration of gain at 25 °C is done according to

channel-mask

8 All calibration values are set to default 0

9 The specified calibration value is set to default Value-identifier

Reserved

(1)

Reserved

(1)

Reserved

(1)

Reserved

14 The calibration content is saved to EEPROM. 0 0 0

(1)

Reserved. Used during manufacture of the product.

Table 5.6 1797-IE8H Interpretation of Calibration Data Structure Content During Read Access (Error Status)

Command Byte Item Byte Data1 Byte Data2 Byte

Status (Binary) Command Bits 0…5 (Decimal)

01 Error 1 Calibration of offset at 25 °C according to

Channel-mask 0 0

channel-mask has failed

(1)

2 Calibration of gain at 25 °C according to

channel-mask has failed

3…7 Unknown command is mirrored back 0

8 The calibration values are not set to default 0

9 The specified calibration value is not set to default Value-identifier

Reserved

(1)

14 The calibration content could not be saved to

EEPROM

15…61 Unknown command is mirrored back

62 Reserved Reserved Reserved Reserved

63 Reserved

(1)

Reserved. Used during manufacture of the product. Do not use.

Reserved

(1)

Reserved

(1)

Reserved

(1)

000

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5-8 Calibrate Your Module

Table 5.7 1797-IE8H Interpretation of Calibration Data Structure Content During Read Access (Pending Status)

Command Byte Item Byte Data1 Byte Data2 Byte

Status (Binary) Command Bits 0…5 (Decimal)

10 Pending 1 Calibration of offset at 25 °C is in process

according to channel-mask

2 Calibration of gain at 25 °C is in process according

to channel-mask

3…7 The unknown command is trying to be interpreted

8 All calibration values are set to default 0 0 0

9 The specified calibration value is set to default Value-identifier

Reserved

(1)

14 The calibration content is saved to EEPROM

15…61 Unknown command is mirrored back 0 0 0

62 Reserved Reserved Reserved Reserved

63 Reserved

(1)

Reserved. Used during manufacture of the product. Do not use.

(2)

The received values are mirrored back.

Channel-mask 0 0

(2)

Reserved

(2)

(1)

(2)

Reserved

(2)

(1)

(2)

Reserved

(2)

(1)

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1797-IE8H Calibration Item Byte Channel-Mask

76543210

Calibrate channel 0 Calibrate channel 1

Calibrate channel 7

Calibrate Your Module 5-9

Table 5.8 1797-IE8HCalibration Item Byte Value Identifier List

Identifier (Decimal) Value Access Rule

0 Offset channel 0 Read/write

………

7 Offset channel 7 Read/write

8 Gain channel 0

………

15 Gain channel 7 Read/write

16…47 Reserved —

48 Status mask offset Read/write

49 Status mask gain

50 Calibration day

51 Calibration month

52 Calibration year

53 Checksum over calibration

Read

values

54…255 Reserved —

1797-IE8H Calibration Item Byte Value Identifier 48 (Status Mask Offset)

Each bit of the lower byte of this word corresponds to one channel. A logical 1 within the lower byte of the words means that this channel is calibrated according to offset at room temperature. A logical 0 means that this channel is not calibrating. In an attempt to write the upper byte of this word, write 0x00h. In an attempt to read the upper byte of this word, 0x00h is given back.

Reserved Offset

15 14 13 12 11 10 9 8

76543210

Channel 0

Channel 1

Channel 7

Reserved

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5-10 Calibrate Your Module

1797-IE8H Calibration Item Byte Value Identifier 49 (Status Mask Gain)

Each bit of the lower byte of this words corresponds to one channel. A logical 1 within the lower byte of the word means that this channel is calibrated according to gain at room temperature. A 0 means that this channel is not calibrating. In an attempt to write the upper byte of this word, write 0x00h. In an attempt to read the upper byte of this word, 0x00h is given back.

Reserved Gain

15 14 13 12 11 10 9 8

76543210

Channel 0

Channel 1

Channel 7

Reserved

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Calibrate Your Module 5-11

1797-IE8H Calibration with Offset and Gain

You must calibrate the offset from a channel before gain is calibrated at the same channel, because the gain value depends on the offset value. During the calibration of offset, the corresponding gain value is declared invalid. Before all values are calibrated, there is a calibration error displayed within the Real Time Data in the diagnostic status. After calibration is complete, the calibrated values are stored in the RAM area by the I/O module. Therefore, a store command is necessary to cause the I/O module to transfer the RAM content to the EEPROM.

Use the following guidelines when setting the offset and gain calibrations:

• To calibrate a channel according to offset, the corresponding channel

must be sorted, or opened, so that flow is 0.00 mA.

• To calibrate a channel according to gain, the corresponding channel

must be supplied with 20.00 mA.

• Set the I/O module ambient temperature in the range of 25…±5 °C.

• Check the calibration status to see if it is idle or erroneous before

sending the calibration command by reading attribute 67

hex

Calibration Command Given Back by the I/O Module

Idle or erroneous Calibration is complete

Pending Poll the status again and recheck

Does not correspond with the first written command

Idle and it corresponds with the first written command

Indicates

Access conflict with another calibration device or another access error — repeat the calibration command

Successful calibration by the module

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5-12 Calibrate Your Module

1797-OE8H Calibration Features

The following features are unique to the 1797-OE8H module:

• There are six values per channel that the I/O module uses to calculate

the corresponding calibration values (offset and gain).

– Min Scale DAC at 1500

– Max Scale DAC at 6700

– Current-read-back Min Scale at 1500

– Current-read-back Max Scale at 6700

– Voltage-read-back Min. Scale at 1500

– Voltage-read-back Max Scale at 6700

about 1 mA

dec

about 20 mA

dec

about 1 mA

dec

about 20 mA

dec

• The module internally calculated calibration values are:

– Offset DAC

– Gain DAC

– Offset I-read-back

– Gain I-read-back

– Offset U-read-back

– Gain U-read-back

• All calibration values are stored in the module non-volatile EEPROM.

• Only one channel can be calibrated at a time according to one

calibration value (max scale or min scale values).

• The actual date must be transmitted after calibration to the I/O module

and stored in the module non-volatile EEPROM. The data can be read out over the EDT channel.

• The whole calibration can be set to default values by sending a reset

command. The default date is Jan,01,2000.

• A specified calibration value can be set to default by sending a reset

command for that channel.

• There is a special command to store the whole calibration data from

RAM to EEPROM within the I/O module.

• If one value, except the calibration date, isn’t calibrated yet, or if you set

one value to default, the I/O module displays a calibration error within the Real Time Data diagnostic field.

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Calibrate Your Module 5-13

1797-OE8H Calibration Command Byte

The Calibration command byte uses the following format to write to the module:

76543210

Calibration command

Reserved (10

The Calibration command byte uses the following format to read from the module:

must be written)

bin

76543210

Last Calibration command mirrored back

Status of last written Calibration command

= last written command executed/idle

bin

= error occurred during execution of last

bin

command, command aborted

= last written command pending

bin

= reserved

bin

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5-14 Calibrate Your Module

Table 5.9 1797-OE8H Calibration Command List

Calibration Command (Decimal)

Function

Bits 0…5

0 Reserved

1 Calibration command min scale

2 Calibration command max scale

3 Write measured min scale value (Current, uA)

4 Write measured min scale value (Voltage, uV)

5 Write measured max scale value (Current, uA)

6 Write measured max scale value (Voltage, uV)

7 Reserved

8 Set all calibration values to default

9 Set one specified calibration value to default

10…13

Reserved

(1)

14 Save calibration content to EEPROM

15…63 Reserved

(1)

Used during manufacture of the product. Do not use.

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Calibrate Your Module 5-15

Table 5.10 1797-OE8H Interpretation of Command Data Structure Content During Write Access

Command Byte Item Byte Data1 Byte Data2 Byte

Reserved (Binary) Command Bits 0…5 (Decimal)

(1)

1 Calibration command min scale Channel-Mask

Reserved

(4)

Reserved

2 Calibration command max scale

(4)

3 Write measured min scale value (Current, uA) Value

4 Write measured min scale value (Voltage, uV)

5 Write measured max scale value (Current, uA)

6 Write measured max scale value (Voltage, uV)

Reserved

(2)

8 Set all calibration values to default

9 Set one specified calibration value to default Value identifier (0)

Reserved

(3)

(4)

14 Save calibration data to EEPROM

15…63

(1)

Always must be 10

(2)

Do not use. Designated for future use.

(3)

Reserved. Used during manufacture of the product. Do not use.

(4)

In attempt to write this byte, write 0.

bin

Reserved

(2)

Value

low-byte

high-byte

———

Reserved

(4)

(3)

(4)

Reserved

(4)

(3)

(4)

Reserved

(4)

(3)

(4)

———

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5-16 Calibrate Your Module

Table 5.11 1797-OE8H Interpretation of Calibration Data Structure Content During Read Access (Idle Status)

Command Byte Item Byte Data1 Byte Data2 Byte

Status (Binary) Command Bits 0…5 (Decimal)

00 Idle 0 Nothing is done. The state after power on. 0 0 0

1 The min scale value is supported at the outputs

Channel-Mask

according to channel-mask

2 The max scale value is supported at the outputs

according to channel-mask

3 The written min scale value of Current was

4 The written min scale value of Voltage was

5 The written max scale value of Current was

6 The written max scale value of Voltage was

8 All calibration values are set to default 0 0 0

9 The specified calibration value is set to default Value-identifier

14 The calibration content is saved to EEPROM. 0 0 0

(1)

Do not use. Designated for future use.

(2)

Reserved. Used during manufacture of the product.

accepted

Reserved

Value low-byte

(1)

(2)

Reserved

(1)

(2)

Reserved

(1)

(2)

Value high-byte

Reserved

(1)

(2)

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Calibrate Your Module 5-17

Table 5.12 1797-OE8H Interpretation of Calibration Data Structure Content During Read Access (Error Status)

Command Byte Item Byte Data1 Byte Data2 Byte

Status (Binary) Command Bits 0…5 (Decimal)

01 Error 3 The written min scale value of Current was not

accepted/internal read back erroneous

4 The written min scale value of Voltage was not

accepted/internal read back erroneous

5 The written max scale value of Current was not

accepted/internal read back erroneous

6 The written max scale value of Voltage was not

accepted/internal read back erroneous

Reserved

(1)

8 The calibration values are not set to default 0 0 0

9 The specified calibration value is not set to default Value-identifier

10 The specified calibration value is not written Value

Reserved

(2)

15…61 Unknown command is mirrored back 0 0 0

(1)

Do not use. Designated for future use.

(2)

Reserved. Used during manufacture of the product. Do not use.

(3)

Only for internal use. Do not use for calibration purposes.

The specified setup value is not written

The setup data could not be saved to EEPROM

(3)

Channel-Mask Value

low-byte

Reserved

(1)

Reserved

(1)

Value high-byte

Reserved

Value

low-byte

Reserved

Setup value-identifier

(3)

000

(2)

Reserved

Value low-byte

(2)

high-byte

Reserved

Value high-byte

(1)

(2)

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5-18 Calibrate Your Module

Table 5.13 1797-OE8H Interpretation of Calibration Data Structure Content During Read Access (Pending Status)

Command Byte Item Byte Data1 Byte Data2 Byte

Status (Binary) Command Bits 0…5 (Decimal)

10 Pending 1 Calibration command number 1 is in interpretation

Channel-Mask 0 0

now

2 Calibration command number 2 is in interpretation

now

3 The written min scale value of Current is in

interpretation now

Value low-byte

4 The written min scale value of Voltage is in

interpretation now

5 The written max scale value of Current is in

interpretation now

6 The written max scale value of Voltage is in

interpretation now

Reserved

(1)

Reserved

(1)

Reserved

(1)

8 All calibration values are set to default now 0 0 0

9 The specified calibration value is set to default

Value-identifier

now

Reserved

(2)

Reserved

(2)

Reserved

(2)

14 The calibration data is saved to EEPROM right now 0 0 0

15…61 The unknown command is trying to be interpreted x

62 The specified setup-value is written now Setup

value-identifier

Value low-byte

Value high-byte

Reserved

Value high-byte

(1)

(2)

63 The setup data is saved to EEPROM right now 0 0 0

(1)

Do not use. Designated for future use.

(2)

Reserved. Used during manufacture of the product. Do not use.

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Calibrate Your Module 5-19

1797-OE8H Calibration Item Byte Channel-Mask

The Calibration item byte channel-mask uses each bit of the byte to correspond to one channel: where 1 is calibrate this channel and 0 is do not calibrate this channel. The LSB corresponds to channel 0, for example, 0x03 > channel 0 and 1 have to be calibrated. Only one channel can be calibrated at a time. If there are more channels selected within the calibration commands, the I/O module signals an error.

76543210

Calibrate channel 0 Calibrate channel 1

Calibrate channel 7

Table 5.14 1797-OE8HCalibration Item Byte Value Identifier List

Identifier (Decimal) Value Access Rule

0 Offset channel 0 Read/write

……

7 Offset channel 7

8 Gain channel 0

……

15 Gain channel 7

16 Offset current-read-back

channel 0

……

23 Offset current-read-back

channel 7

24 Gain current-read-back

channel 0

……

31 Gain current-read-back

channel 7

32 Offset voltage-read-back

channel 0

……

39 Offset voltage-read-back

channel 7

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5-20 Calibrate Your Module

Table 5.14 1797-OE8HCalibration Item Byte Value Identifier List

Identifier (Decimal) Value Access Rule

40 Gain voltage-read-back

Read/write

channel 0

……

47 Gain voltage-read-back

channel 7

48 Status mask calibration

49 Reserved

50 Calibration day

51 Calibration month

52 Calibration year

53 Checksum over calibration

Read

values

54…255 Reserved —

1797-OE8H Calibration Item Byte Value Identifier 48 (Status Mask Calibration)

Each bit of the lower byte of this word corresponds to one channel. A logical 1 within the lower byte of the words means that this channel is completely calibrated. A logical 0 means that this channel is not completely calibrated. In an attempt to write the upper byte of this word, write 0x00h. In an attempt to read the upper byte of this word, 0x00h is given back.

Reserved Offset

15 14 13 12 11 10 9 8

76543210

Publication 1797-6.5.3 - March 2006

Channel 0

Channel 1

Channel 7

Reserved

Calibrate Your Module 5-21

1797-OE8H Calibration Flowchart Procedure

Perform the calibration at ambient room temperature, 25 (±5) °C, according to the procedure flowchart. Each channel is calibrated one after the other. The current is measured indirectly via a precision voltmeter placed across a precision 100 ohm resistor.

+-CHx

100 ohm 650 ohm

Voltmeter

Before all values are completely calibrated, a calibration error is displayed within the Real Time Data field in the diagnostic status field. After calibration is complete, the I/O module stores the calibrated values in the RAM area. Therefore, you must send a store command to cause the I/O module to transfer the RAM content to the EEPROM.

Publication 1797-6.5.3 - March 2006

5-22 Calibrate Your Module

Start of

calibration

Measurement

equipment is connected to

channel x

Write calibration

command 1 or 2 to

I/O module

calibration

status

idle?

The voltage is

measured

calibration

status

erroneous?

Abort by

power-cycl

Write voltage

value to I/O

module with

command 4 or 6

calibration

status

idle?

The current is

measured

Write current

value to I/O

module with

command 3 or 5

calibration

status

idle?

calibration

status

erroneous?

calibration

status

erroneous?

Abort by

power-cycl

Abort by

power-cycl

Publication 1797-6.5.3 - March 2006

Calibration of this value at this channel is done

End

Apply FLEX Ex Analog I/O Modules

Chapter

What This Chapter Contains

Evaluate the Application

Read this chapter to learn how to use entity parameters when electrically interconnecting your FLEX Ex analog I/O module in a hazardous area.

For See

Evaluate the Application 6-1

Define the Area Classification 6-2

Select Protection Method(s) 6-3

Match Field Devices and I/O Modules 6-3

Optimize Power Distribution 6-7

Chapter Summary 6-10

The FLEX Ex system is different from traditional control systems used the intrinsic safety in its ability to be located directly in hazardous areas and to embrace high speed network-based control.

Follow these steps when designing a FLEX Ex system for your application:

1. Define the area classification.

2. Select protection method(s).

3. Match field devices and I/O modules.

4. Optimize power distribution.

5. Layout the ControlNet Ex network.

An explanation of each of these steps is provided in this chapter.

1 Publication 1797-6.5.3 - March 2006

6-2 Apply FLEX Ex Analog I/O Modules

Define the Area Classification

Before you can determine what components will make up your FLEX Ex system, you must define the area in which that system will operate. You must determine the following:

• Classification method

• Hazard

• Temperature rating

Decide Classification Method

Your application location will usually decide whether the classification method is Zone or Class/Division, but the system designer may make this determination. FLEX Ex is certified for zone method only. Certification is pending for Division method.

Determine Hazard

Hazard–typically gas, dust, or fibers–is determined by the material being processed. For example, a coal mine will generally be rated for dust and methane gas hazards. FLEX Ex is certified for gas hazard only. Certification is pending for attaching wiring to FLEX Ex I/O modules from a dust and fiber hazardous area.

Determine Temperature Rating

The spontaneous ignition temperature of the hazard in your application determines the temperature rating. For example, an application with a hydrogen hazard may use equipment with a temperature rating of T1 because hydrogen’s ignition temperature is 550 °C. FLEX Ex is certified as a T4 system.

Publication 1797-6.5.3 - March 2006

Rockwell Automation 1797-OE8H User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Important User Information

Summary of Changes

What’s Changed

Table of Contents

Preface

Why Read This Manual

Who Should Read This Manual

About the Vocabulary

What This Manual Contains

For Additional Information

About the FLEX Ex HART Analog Modules

What This Chapter Contains

What the FLEX Ex Analog I/O Modules Do

How FLEX Ex Analog Modules Communicate with Programmable Controllers

Physical Features of Your Analog I/O Module

Using Alarms on the 1797-IE8H Module

How to Use the HART Capabilities

HART Implementation Overview

HART Commands

Selecting the Correct Path

Chapter Summary

Understand Configurable FLEX Ex Analog Module Features

What This Chapter Contains

Selecting a 1797-IE8H FLEX Ex Analog Input Module’s Operating Features

Selecting a 1797-OE8H FLEX Ex Analog Output Module’s Operating Features

Understanding Image Table Mapping and Bit/Word Descriptions

Chapter Summary

How to Install Your FLEX Ex Analog Modules

What This Chapter Contains

Before You Install Your Analog Module

Compliance to European Union Directives

Installation in Zone 1

Installation in Zone 22

Electrostatic Charge

Removal and Insertion Under Power

Install the Module

Wire the Terminal Base Units

Connecting Wiring to the FLEX Ex I/O Analog Modules

Ground the Module

Chapter Summary

Input, Output and Configuration Files for the Analog I/O Modules on the ControlNet Network

What This Chapter Contains

Using Programming Software in Your FLEX Ex Application

About the ControlNet Ex Adapter

Communication Over the FLEX Ex Backplane

I/O Structure

Fault State Data

Device Actions

Chapter Summary

Calibrate Your Module

What This Chapter Contains

When and How to Calibrate Your FLEX Ex Analog I/O Module

Tools and Equipment

1797-IE8H Calibration Features

1797-OE8H Calibration Features

Apply FLEX Ex Analog I/O Modules

What This Chapter Contains

Evaluate the Application

Define the Area Classification