O0:x.0/0, 1762 expansion i/o addressing – Rockwell Automation 1762-OV32T MicroLogix Solid State 24V DC Sink Output User Manual

Page 16

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16 MicroLogix 1762-OV32T Solid State 24V DC Sink Output Module

Publication 1762-IN021B-EN-P - July 2013

I/O Memory Mapping

For each output module, slot x, words 0...1 in the output data file contain the control program’s
directed state of the digital output points.

1762 Expansion I/O Addressing

The addressing scheme for 1762 Expansion I/O is represented in the following figure.

Output Data File

Bit Position

Word

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

0

w

w

w

w

w

w

w

w

w

w

w

w

w

w

w

w

1

w

w

w

w

w

w

w

w

w

w

w

w

w

w

w

w

Where:

w = write

O0:x.0/0

Slot number

(1)

Data file

Output

Slot delimiter

Word delimiter

Bit delimiter

Bit (0...15)

Word

(1)

I/O located on the controller (embedded I/O) is slot 0. I/O added to the controller (expansion I/O) begins with slot 1.

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