Using VB.NET and OPC on testbench system. Trying to switch from Polled to Unsolicited MSG'ing using ControlLogix v15 and RSLogix 2.52. Polled OPC worked fine. Tried unsolicited MSG. Getting Error Code 16#1000 -- Illegal command from local processor. I am unclear how to configure the MSG and the OPC Topic. Does everyone know of an example or instructions that I can use. Thanks

Found my problem. By using desc of sending native CIP messages in Rslinx.chm, I was able to get the unsolicited messages to work.