Rockwell Automation 1769-ADN Compact I/O 1769-ADN DeviceNet Adapter User Manual

Page 178

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Publication 1769-UM001B-EN-P - October 2002

B-20 Explicit Messaging Application Examples

The following ladder logic program is an example of the logic needed
to initiate an explicit message to the scanner/adapter/1769 I/O
module and how to obtain the reply. This logic is specifically for the
Get 1769 I/O Module Status command. Assume the 1747-SDN scanner
is in slot 3 of the processor chassis and the 1769-OF2 module that we
are reading status from is in slot 10 of the 1769-ADN remote system.

Data Table File N11 (Shown in Hexadecimal Radix)

Offset

0

1

2

3

4

5

6

7

8

9

N11:0

101

6

E13

30C

A

C

0

0

0

0

N11:10

0

0

0

0

0

0

0

0

0

0

N11:20

0

0

0

0

0

0

0

0

0

0

N11:30

0

0

0

0

0

0

0

0

0

0

N11:40

4

0

0

0

0

0

0

0

0

0

N11:50

101

1

8E13

4

0

0

0

0

0

0

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