I have another question about how Modbus TCP works. Is the connection between LM and slave always established or does the LM, connect-->Poll-->disconnect-->polling intervall-->connect.... and so on?
Because my TCP slave says there is no connection to a master, but the LM manages to read out from it.
The supplier of modbus slave says to connection normally stays connected.
Because my TCP slave says there is no connection to a master, but the LM manages to read out from it.
The supplier of modbus slave says to connection normally stays connected.