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Implementing CIP Explicit Message to Modbus Object between a M340 NOC401 (client) and a 140NOC78000 (server)

Goals and Symptoms

When using the 140NOC78000 as a server, to get process data through the Modbus object, only Unconnected_ Send messaging will work. The attachment is an example on how to perform an Explicit messaging using the DATA_EXCH block from a M340 NOC401 client.

Causes and Fixes

Using UCMM and connected messaging will only return diagnostic data when communicating to a 140NOC78000.

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