Properly opening and closing visa session

[b_lee]

I have had problems with my vi's having problems connecting to RS232 ports. how do you properly open and close VISA sessions for VI's?

[James_R]

To open and close a visa session simply

a more elegant approach is to use two loops. one for receive then pass the data into a queue and process it in another loop

Message Edited by James R on 04-03-2007 10:55 AM

[b_lee]

And what if I have multiple serial ports...I have the problem of one devices working on com 1 but not on any other port.

[James_R]

there must be a visa close for each port

you could read all ports at the same time when data arives at any port

or you could just duplicate the previous example i posted for each port

Message Edited by James R on 04-03-2007 12:26 PM