I am using your T100MD888 to communicate to a operator display. I need to send ASCII characters to this display. The display operates as a display only, not to communicate back to the Tri-PLC.
I am using the RS485 port with the Tri-PLC RS232-RS485 converter.
The operator display has a fixed baud rate of 1200, with no handshaking required. The operator display is set for RS232 levels, and uses "2" start bits, 1 Stop bit, 8 Data bits and no parity.
I wired the RS232/RS485 Tri-Plc converter using pins 3 and 5.
I have a custom function triggered from the 1st scan bit to set the buad rate on port #3
ie; Setbaud 3, &H0F
I have another custom function that is triggered with a pushbutton input to send out a single character to the operator display.
ie; Print #3 "A"
I get the Red LED on the RS232/RS485 to flash each time when the function is called but no data on the display.
What am I doing wrong?
