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Rockwell Automation 1761-NET-DNI DeviceNet Interface (DNI) User Manual

Page 83

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Publication 1761-UM005B-EN-P - October 2006

Explicit Messaging (DNI Series B Only) 83

The message instruction setup screen is shown below.

• The actual data portion of the controller’s write message (N7:1)

must match the size parameter in the respective profile register.
In this example:

• the size of profile register 241 is 1
• the controller’s write message has a length of 2

the first word identifies the profile register to be used

the second word is the actual data

To verify that this is a valid routing profile, we see that the data
portion of this message is 1, which corresponds to the profile’s size of
1. So, this example is valid. If the sizes do not match, the controller’s
write message will result in an error.