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Rockwell Automation DeviceNet Communications Module User Manual

Page 53

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Using I/O Messaging

6-5

Figure 6.2 – Sample ControlLogix Ladder Logic Program

0

Local:3:O.CommandRegister.Run

Sample ControlLogix program with an MD65 drive at node address 1.

specifc tags for use elsewhere in the ladder program.

1

Copy File
Source

Local:3:I.Data[0]

Dest

DriveInputImage[0]

Length

2

COP

2

DriveInputImage[0].0

DriveStatusReady

3

DriveInputImage[0].1

DriveStatusActive

4

DriveInputImage[0].3

DriveStatusForward

5

DriveInputImage[0].7

DriveStatusFaulted

6

DriveInputImage[0].8

DriveStatusAtReference

7

Copy File
Source

DriveInputImage[1]

Dest

DriveFeedback

Length

1

COP

8

DriveCommandStop

DriveOutputImage[0].0

9

DriveCommandStart

DriveOutputImage[0].1

10

DriveCommandJog

DriveOutputImage[0].2

11

DriveCommandClearFaults

DriveOutputImage[0].3

Command bits and Reference) and writes them to the scanner for output over the network.

This rung enables the scanner (changes the scanner to RUN mode).

This section retrieves the Logic Status and Feedback data from the scanner and moves it to

This section takes the data from specific tags used elsewhere in the ladder program (Logic