ControlLogix Analog I/O Modules ?· ControlLogix Analog I/O Modules Catalog Numbers 1756-IF16, 1756-IF…

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ControlLogix Analog I/O ModulesCatalog Numbers 1756-IF16, 1756-IF6CIS, 1756-IF6I, 1756-IF8, 1756-IR6I, 1756-IT6I, 1756-IT6I2, 1756-OF4, 1756-OF6CI, 1756-OF6VI, 1756-OF8

User Manual

Important User Information

Read this document and the documents listed in the additional resources section about installation, configuration, and operation of this equipment before you install, configure, operate, or maintain this product. Users are required to familiarize themselves with installation and wiring instructions in addition to requirements of all applicable codes, laws, and standards.

Activities including installation, adjustments, putting into service, use, assembly, disassembly, and maintenance are required to be carried out by suitably trained personnel in accordance with applicable code of practice.

If this equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired.

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, when necessary, we use notes to make you aware of safety considerations.

Labels may also be on or inside the equipment to provide specific precautions.

Allen-Bradley, Rockwell Automation, Rockwell Software, RSLogix 5000, Logix5000, RSNetWorx, RSLinx, PowerFlex, DeviceNet, EtherNet/IP, Data Highway Plus-Remote I/O, and TechConnect are trademarks of Rockwell Automation, Inc.

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

WARNING: 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.

ATTENTION: 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, and recognize the consequence.

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

SHOCK HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that dangerous voltage may be present.

BURN HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that surfaces may reach dangerous temperatures.

ARC FLASH HAZARD: Labels may be on or inside the equipment, for example, a motor control center, to alert people to potential Arc Flash. Arc Flash will cause severe injury or death. Wear proper Personal Protective Equipment (PPE). Follow ALL Regulatory requirements for safe work practices and for Personal Protective Equipment (PPE).

Summary of Changes

This manual contains new and updated information. Changes throughout this revision are marked with change bars, as shown to the right of this paragraph.

New and Updated Information

The table explains the new and updated information in this manual.

Section Changes

Chapter 3 Updated the Electronic Keying section Updated the Difference Between Integer and Floating Point example

Chapter 4 Added advisory not to exceed the specific isolation voltage when using a separate power source when wiring various modules

Chapter 5 Added advisory not to exceed the specific isolation voltage when using a separate power source when wiring various modules

Updated diagram labels for wiring the 1756-IF6I Module

Chapter 6 Updated Fahrenheit temperature conversion range values for Cold-junction Compensation Types and Cold Junction Offset Option

Added advisory not to exceed the specific isolation voltage when using a separate power source when wiring various modules

Chapter 7 Added advisory not to exceed the specific isolation voltage when using a separate power source when wiring various modules

Chapter 8 Added advisory not to exceed the specific isolation voltage when using a separate power source when wiring various modules

Rockwell Automation Publication 1756-UM009D-EN-P - March 2015 3

Summary of Changes

Notes:

4 Rockwell Automation Publication 1756-UM009D-EN-P - March 2015

Table of Contents

Preface Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Who Should Use This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13For More Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Chapter 1What Are ControlLogix Analog I/O Modules?

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15I/O Module in the ControlLogix System. . . . . . . . . . . . . . . . . . . . . . . . . . . 16Module Identification and Status Information. . . . . . . . . . . . . . . . . . . . . . 17Preventing Electrostatic Discharge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Chapter 2Analog I/O Operation in theControlLogix System

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Ownership . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Using RSNetWorx and RSLogix 5000 Software . . . . . . . . . . . . . . . . . . . . 20Direct Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Input Module Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22Input Modules in a Local Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Real Time Sample (RTS). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22Requested Packet Interval (RPI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23Triggering Event Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Input Modules in a Remote Chassis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Remote Input Modules Connected Via the ControlNet Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Remote Input Modules Connected Via the EtherNet/IP Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Output Module Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27Output Modules in a Local Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27Output Modules in a Remote Chassis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Remote Output Modules Connected Via the ControlNet Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28Remote Output Modules Connected Via the EtherNet/IP Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Listen-only Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Multiple Owners of Input Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31Configuration Changes in an Input Module with Multiple Owners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Chapter 3ControlLogix Analog I/O Module Features

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33Common Analog I/O Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Removal and Insertion Under Power (RIUP) . . . . . . . . . . . . . . . . . . . 34Module Fault Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34Configurable Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Electronic Keying . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Rockwell Automation Publication 1756-UM009D-EN-P - March 2015 5

Table of Contents

More Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35Access to System Clock for Timestamp Functions . . . . . . . . . . . . . . . 36Rolling Timestamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36Producer/Consumer Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36Status Indicator Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37Full Class I Division 2 Compliance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37Agency Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37Field Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37Sensor Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38Latching of Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38Module Inhibiting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Relationship Between Module Resolution, Scaling, and Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Module Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40Scaling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42Data Format as Related to Resolution and Scaling . . . . . . . . . . . . . . . 43

Chapter 4Non-isolated Analog Voltage/Current Input Modules (1756-IF16, 1756-IF8)

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47Choose a Wiring Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Single-ended Wiring Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48Differential Wiring Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49High-speed Mode Differential Wiring Method. . . . . . . . . . . . . . . . . . 49

Choose a Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50Features Specific to Non-Isolated Analog Input Modules . . . . . . . . . . . . 51

Multiple Input Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51Module Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52Real Time Sampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53Underrange/Overrange Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53Digital Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54Process Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54Rate Alarm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55Wire Off Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Use Module Block and Input Circuit Diagrams . . . . . . . . . . . . . . . . . . . . . 58Field-side Circuit Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Wire the 1756-IF16 Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61Wire the 1756-IF8 Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 651756-IF16 Module Fault and Status Reporting . . . . . . . . . . . . . . . . . . . . . 691756-IF16 Fault Reporting in Floating Point Mode . . . . . . . . . . . . . . . . . 70

1756-IF16 Module Fault Word Bits Floating Point Mode. . . . . . 711756-IF16 Channel Fault Word Bits Floating Point Mode . . . . . 711756-IF16 Channel Status Word Bits Floating Point Mode . . . . 71

1756-IF16 Fault Reporting in Integer Mode . . . . . . . . . . . . . . . . . . . . . . . . 721756-IF16 Module Fault Word Bits Integer Mode. . . . . . . . . . . . . 741756-IF16 Channel Fault Word Bits Integer Mode . . . . . . . . . . . . 741756-IF16 Channel Status Word Bits Integer Mode . . . . . . . . . . . 75

6 Rockwell Automation Publication 1756-UM009D-EN-P - March 2015

Table of Contents

1756-IF8 Module Fault and Status Reporting . . . . . . . . . . . . . . . . . . . . . . 761756-IF8 Fault Reporting in Floating Point Mode . . . . . . . . . . . . . . . . . . 77

1756-IF8 Module Fault Word Bits Floating Point Mode. . . . . . . 781756-IF8 Channel Fault Word Bits Floating Point Mode . . . . . . 781756-IF8 Channel Status Word Bits Floating Point Mode . . . . . 78

1756-IF8 Fault Reporting in Integer Mode . . . . . . . . . . . . . . . . . . . . . . . . . 801756-IF8 Module Fault Word Bits Integer Mode . . . . . . . . . . . . . 811756-IF8 Channel Fault Word Bits Integer Mode. . . . . . . . . . . . . 811756-IF8 Channel Status Word Bits Integer Mode . . . . . . . . . . . . 82

Chapter 5Sourcing Current Loop Input Module (1756-IF6CIS) and Isolated Analog Voltage/Current Input Modul e (1756-IF6I)

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83Use the Isolated Power Source on the 1756-IF6CIS . . . . . . . . . . . . . . . . . 84

Power Calculations with the 1756-IF6CIS Module . . . . . . . . . . . . . 84Other Devices in the Wiring Loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Choose a Data Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85Features Specific to the 1756-IF6I and 1756-IF6CIS Modules . . . . . . . 85

Multiple Input Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

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