Input module addressing, Appendix b, See appendix b – Rockwell Automation 1769-OF4VI Compact I/O Isolated Analog Modules User Manual

Page 91: Appendix

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Publication 1769-UM014B-EN-P - May 2010

Appendix

B

Module Addressing and Configuration with

MicroLogix 1500

This appendix examines the analog modules’ addressing scheme and describes
module configuration using RSLogix 500 and MicroLogix 1500 software.

Input Module Addressing

In the following example, the 1769-IF4I module is used.

Detailed information on the input image table can be found in 1769-IF4I
Input Data File on page 3-3.

Figure B.1 1769-IF4I Memory Map

Slot e

Input Image

File

Output Image

File

Configuration

File

Slot e

Slot e

Input Image
7 Words

Output Image
1 Word

Configuration File
26 Words

Memory Map

Bit 15

Bit 0

Channel 3 Configuration Words

Words 20 to 25

Channel 2 Configuration Words

Words 14 to 19

Channel 1 Configuration Words

Words 8 to 13

Channel 0 Configuration Words

Words 2 to 7

Clear Latched Alarm Bits

Word 0

High-/Low-alarm & Over-/Under-range

Word 6

General Status Bits

Word 5

Time Stamp Value Word

Word 4

Channel 3 Data Word

Word 3

Word 2

Channel 2 Data Word

Word 1

Channel 1 Data Word

Channel 0 Data Word

Word 0

Enable Time Stamp

Word 1, bit 15

Real Time Sample Rate

Word 0

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