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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.
(Removed File URL: 210062_3A32/BMXNOC0401_CIP_Modbus_Object_Read.ppt)(Removed Image URL: /PubResEXPORT.nsf/2b87ee90be777fc085257c28006ee4ef/0dd308267593acbac1257ad800161c42/fl_block_5/0.112?OpenElement&FieldElemFormat=gif)