![]() I tried to restart the process and stop and start the local variable engine without success. All other variables with a 'read' access mode signal "failure of process". ![]() I opened the Manager of distributed systems OR to display the State of all variables in the Modbus Library that I created, and I noticed that the ILO CommFail permanently the value 'true '. I'm using LabVIEW 2011 SP1 with the DSC module. My installation is simply to a PC directly connected to the controller via Ethernet without a router between the two. However, when I try to query the PLC using the LabVIEW shared variable engine, I am unable to read the values of the same addresses that I consult with Modbus Poll. I confirmed that the PLC will update the values and in response to a MODBUS communication correctly by using a third-party program called Modbus Poll. I'm currently reading from operating records a PLC with MODBUS/TCP. Deal with failure when using LabVIEW 2011 and DSC MODBUS communication
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