I want to communicate SCADA with one controller there we are using Modbus RTU protocol.
Hello Rob, I want to communicate SCADA with one controller there we are using Modbus RTU protocol.Please tell me process How to communicate with Compact HMI scada with modbus rtu.
I think this is too general a question to answer easily. PLC Connect is one solution that can do this for you.
Try the Reference manuals for "PLC Connect Configuration". Information on how to set up Modbus communication links in 800xA is given both in the printed manuals and the on line help. There is also some additional information in the Post-Installation Guide on how to set up PLC networks
Information on the general working principles of Modbus is easily found with a google search.