PLC and Serial Communication


Thread Starter

Mohammad Ayesh

How can I send and receive messages to any PLC? I know that Mscomm object and I know how to set the port, but I need someone to help me. How can I write my first protocol using Visual Basic 6?

Thanks much to who helps me with this.
It depends, which PLC are u using. Vendors have softwares for this purpose which communicate through serial port.