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Hello, I'm trying to send a command ASDU to a PLC. However, I encountered a few difficulties. I tried to send a command ASDU to a PLC and the PLC ignored my command. I know for sure that the link ID that I sent is correct. I suspect that this is because that I didn't perform some sort of initialization or conversation hand-shake.
I couldn't find any explanation in the IEC 60870-5-101 standard regarding session management or conversation flow in the protocol. I will appreciate if someone can please explain me how to protocol works in this aspect.
Thank you very much,
Noam
I couldn't find any explanation in the IEC 60870-5-101 standard regarding session management or conversation flow in the protocol. I will appreciate if someone can please explain me how to protocol works in this aspect.
Thank you very much,
Noam