Allen-Bradley 1756-IR12 - User Manual

High Resolution Analog I/O Modules
Catalog Numbers 1756-IF8I, 1756-IRT8I, 1756-OF8I, 1756-IR12, 1756-IT16
User Manual
Original Instructions

Allen-Bradley 1756-IR12 Specifications

General

Brand	Allen-Bradley
Model	1756-IR12
Category	I/O Systems
Language	English

Summary

Chapter 1 Analog IO Module Operation in the ControlLogix System

Configure a Module

Describes how to configure I/O modules using the Logix Designer application.

Input Module Operation

Explains how ControlLogix analog input modules broadcast data to their backplane.

Output Module Operation

Explains how RPI defines when a controller sends data to analog output modules.

Chapter 2 Analog IO Module Features

Calibration

Details the methods for calibrating ControlLogix analog modules.

Chapter 3 1756-IF8 I Isolated Analog Input Module

1756-IF8 I Module Features

Lists the features of the 1756-IF8I Isolated Analog Input Module.

Fault and Status Reporting

Details how the module multicasts fault and status data via module tags.

Chapter 4 Temperature-sensing Analog Modules

Common Module Features

Lists common features available across temperature-sensing analog modules.

Process Alarms

Alerts when the module exceeds configured high or low limits for each channel.

Rate Alarm

Triggers if the rate of change between input samples exceeds a specified trigger point.

Cold Junction Compensation

Explains the need to compensate for thermoelectric effects in thermocouple measurements.

Chapter 5 1756-OF8 I Isolated Analog Output Module

1756-OF8 I Module Features

Lists the features of the 1756-OF8I Isolated Analog Output Module.

Redundant Owners

Allows a single controller to use redundant adapters or two controllers to coordinate output.

Configure the Output Module

Steps to configure output modules for redundant owner applications.

Troubleshooting

Provides guidance for troubleshooting common issues with output modules.

Chapter 6 Install ControlLogix Analog IO Modules

Install the IO Module

Describes how to install or remove a module while chassis power is applied.

Chapter 7 Configure ControlLogix Analog IO Modules

Create a New Module

Steps to create a module in a Logix Designer application project.

Edit the Configuration

Explains how to use tabs in the New Module dialog box to edit configuration.

Configuration Tab

Details fields specific to module type for tasks like selecting I/O type and range.

Calibration Tab

Allows recalibration of the module to correct hardware inaccuracies.

Alarm Configuration Tab

Details fields specific to module type for disabling alarms and setting parameters.

Chapter 8 Calibrate the ControlLogix Analog IO Modules

Calibrate Via Profile or Ladder

Describes calibrating modules online via software using Ladder Logic or Module Profile.

Calibrate the Input Modules

Details the multi-step process for calibrating input modules.

Calibrate the 1756-IF8 I Module For Voltage Input Type

Provides steps for calibrating the 1756-IF8I module using voltage inputs.

Calibrate the Temperature-sensing Modules

Guides calibration for 1756-IRT8I, 1756-IR12, and 1756-IT16 modules.

Calibrate the Module for an RTD Input Type

Explains the process for calibrating modules with RTD input types using precision resistors.

Calibrate the Module for a Thermocouple Input Type

Provides steps for calibrating modules with thermocouple input types.

Calibrate the Output Module

Guides calibration for the 1756-OF8I module with current or voltage outputs.

Calibrate the 1756-OF8 I Module for a Current Output Type

Details steps for calibrating the 1756-OF8I module for current output.

Chapter 9 Troubleshoot Your Module

Status Indicators for the 1756-IF8 I Module

Explains the status indicators for the 1756-IF8I module.

Status Indicators for the 1756-IRT8 I Module

Explains the status indicators for the 1756-IRT8I module.

Status Indicators for the 1756-IR12 Module

Explains the status indicators for the 1756-IR12 module.

Status Indicators for the 1756-IT16 Module

Explains the status indicators for the 1756-IT16 module.

Status Indicators for the 1756-OF8 I Module

Explains the status indicators for the 1756-OF8I module.

Troubleshoot Incorrect Readings on the Module

1756-IRT8 I and 1756-IT16 Modules - Incorrect Temperature Readings

1756-IRT8 I and 1756-IR12 Modules - Incorrect RTD Readings

1756-IF8 I Module - Incorrect Input VoltageCurrent Readings

1756-OF8 I Module - Incorrect Output VoltageCurrent Readings