Appendix B Introduction; Module Input Image - Rockwell Automation Allen-Bradley 1769-OF4 User Manual

Introduction

Module Input Image

Publication 1769-UM020A-EN-P - December 2009
Module Addressing and Configuration with
MicroLogix 1500 Controller
Topic
Module Input Image
Module Configuration File
Configure Analog I/O Modules in a MicroLogix 1500 System
This appendix examines the modules' addressing scheme and
describes module configuration using RSLogix 500 software and a
MicroLogix 1500 controller.
The module's input image file represents status bits and data echo
words. Input word 0 holds the status bits for the analog output
channels. Input words 1...4 hold the data that represents the directed
value of the analog outputs for channels 0...3. These data words are
valid only when the channel is enabled and there are no errors.
For example, to obtain the general status of channel 2 of the analog
module located in slot 3, use address I:3.0/2.
Input File Type
Element Delimiter
The end cap does not use a slot address.
TIP
Slot
Word
I:3.0/2
Word Delimiter
Bit Delimiter
0 1 2 3
Slot Number
B
Appendix
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55
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Bit
55