I have a setio command programmed into a custom function. TThe same function contains a SetLCD command. The custom function is activated by a single NO input. When I run it on the simulator it works fine. When I transfer it to the PLC (T100MD-888) and use on-line monitoring to watch the response, the SetLCD command works fine but the setio command doesn't work. I tried it on two different PLC boards with the same result. I also tried it with the setbit command with the same result. Any ideas?