GE Fanuc 90-30 RS232 PC to PLC Comms

[Guest AJ]

Hello all, I need to talk to a GE 90-30 series PLC using the RS232 protocol. I need to be able to send data strings in the following format to the PLC via RS232 from a PC: stx <Data> etx Is this easy enough to do? I'm OK with the PC side of things but I'm unsure of how this will be achieved in the PLC. For example, is this possible through the RS232 port of the PLC and if so how do I “see” or access the data in the PLC? What I need to do ultimately is fire different PLC outputs depending on the data value received. Any help would be greatly appreciated. Thanks, AJ

[Guest Guest]

"Is this easy enough to do?" It is if you have a CPU363 and use either port 1 or 2 configured for 'Serial I/O Only'. It will not work through the port on the power supply, as it is SNP Slave protocol only.

[Guest Guest]

Hi All, It's a GE Fanuc 90-30 350 CPU. Can anyone help with how we talk to it? The PC application can communicate via RS232, Profibus or TCP/IP. Thanks AJ