reading on a rs422 connection

[thierryd]

I need to read rs422 protocol (1 bit start, 8 bits data, 1 bit stop), How can I do with Labwindows CVI.
with OpenComConfig I can't specify the start bit.
Help, please !!!!

[Al_S]

Asynchronous serial communication (whether it's RS-323, RS-422, RS-485, etc.) by convention uses one start bit. The signal is idle high, then goes low for one bit time to indicate to the receiver that a byte is coming in. You do not need to specify the start bit: the UART hardware expects it. Your software doesn't need to do anything about it.