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Configuring a Message
Instruction
Message Structure and Configuration
Example Configuration Examples
This appendix provides additional information and examples that explain how to
configure a Message Instruction.
In the examples that we show, we are assuming the use of the ControlLogix®
controller. A ControlLogix controller can accommodate both downloading
Explicit Message Requests and uploading Explicit Message Responses. The
Message Instruction dialog blocks must be formatted as shown in the examples
shown.
Example Format of a Read Message
In this example the steps necessary to Read the IO-Link Parameter value for
"Vendor Name: from the 42EF are shown. The screen capture that is shown is
the Message Configuration dialog box that shows all of the information needed
to complete this task. To open this dialog box, click the blue square box in the
Message Instruction.
Some of the data that are required to complete the Message Configuration dialog
box comes from
Appendix
and Size of all the Parameters that are available in the 42EF. To complete the
dialog box, the Service Code and Source Length needs to be provided.
A table of the different Read and Write Service Codes and their associated
Source Lengths are shown on
Rockwell Automation Publication 42EF-UM001A-EN-P - September 2015
Message Structure and Configuration Example Configuration Examples
B.
Appendix B
shows the Index Number, Data Type,
page
68.
C
Appendix
61
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