Hello,
I have been given the task of working with a Moeller 412-DC-R PLC device.
I know that device will accept input through a COM port and send a message to the device connected to it.


(1)I am unsure how to use C# to send a signal to the COM port
(2)Not sure what type of input the PLC would need.


I think I need a starting point..

Any ideas?

Thanks,

Alvin