Posted 17 Dec 2015 I am using PLC Modicon M221, I want to make communication between PLC Modicon M221 to OPC Kepware by modbus tcp/ip ethernet. In PLC, I use software somachine basic, I set digital input and digital output. And in OPC Kepware my address 00001, but when I switch turn On/Off in PLC, value in OPC Kepware doesnt change. Could you please correct me? Thank you Bujang Share this post Link to post Share on other sites
Posted 10 May 2019 Hi ! i have the same problem. Did you get answer? can you share? Share this post Link to post Share on other sites
