I need to communicate with a MODBUS slave through RS232, and the documentation for the slave specifies that there should be no stop bit. As far as I can tell, Labivew doesn't let you configure a serial port with no stop bit. Is there some way to do this?

Could the manual have a typo? 19.2,N,8,1 would normally mean Baud=19.2, No Parity, 8 Data, 1 stop I have never come across No stop bit!

What you are missing is that the manual is wrong and needs editing. You can't have a serial communication without a stop bit. 8-n-1 means 8 data bits, No parity, 1 stop bit.

LabVIEW

Serial port with no stop bit

Solved!

Another problem with that manual on page 28 is that it says pin 2 is RS-232 positive and pin 3 is RS-232 negative.

NO SUCH THING!

One is transmit the other is receive, and both are relative to pin 5 ground.

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LabVIEW

Serial port with no stop bit

Re: Serial port with no stop bit