Connection between PLC PM571 and control panel CP554
Greetings! Recently i faced with a one problem. I can't get a connection between PLC AC500 series PM571 and control panel CP500 series CP554. Connection between PLC and control panel is done via serial port RS232 to the PLC COM2 port and the display on it showing that connection is set. But never the less i can't get a reaction from PLC when i am pressing some interactive button on the panel. If it's needed I am done import of global variables from CoDeSys v2.3 to the CP Programmer and it was successful, no errors occured. So would be great if somebody who faced with this kind of problem could somehow help me to solve it.