C
hello,
i am confused about Modbus discrete input.
i found an example online. HMI is Client, PLC is server. To read the "motor servo-on status" by HMI.
it use function code 02 which refer to:
"The client reads the status of the discrete inputs of the server."
isn't it "servo-on status" an "OUTPUT" of the PLC?
Please help
i am confused about Modbus discrete input.
i found an example online. HMI is Client, PLC is server. To read the "motor servo-on status" by HMI.
it use function code 02 which refer to:
"The client reads the status of the discrete inputs of the server."
isn't it "servo-on status" an "OUTPUT" of the PLC?
Please help