grnick50
Lifetime Supporting Member
Hello all,
I was wondering if there is a way to turn on the SF LED using an instruction in the program.
i.e. My PLC has no HMI and it has modbus TCP comms. I want when the communication is lost to turn the SF LED on.
I used Gen_usrMSG & Program_Alarm instructions to write a message in the Diag buffer but it does not turn the SF LED on.
Regards
I was wondering if there is a way to turn on the SF LED using an instruction in the program.
i.e. My PLC has no HMI and it has modbus TCP comms. I want when the communication is lost to turn the SF LED on.
I used Gen_usrMSG & Program_Alarm instructions to write a message in the Diag buffer but it does not turn the SF LED on.
Regards