Hello,
I have managed to send output to a terminal using a serial channel. I have not been able to send data from the terminal to the Mitsubishi PLC.
I am not using terminating resistors but I have a slow baud rate of 4800. I am just using regular wires (1.5mm square) . I think the hardware is okay as I can see the output from the PLC on the screen.
Attached is the code. I just send from the terminal the character 22 every second,
I hope this is not too incomplete to get some help. The plan I guess later is to interface with LabVIEW probably using Modbus but I need to try to get this working first.
UL9.gx3