MessageBasedSession VISA Serial Synchronously

[grantsenn]

Hello

Microsoft Visual Studio 2010 with Measurement Studio

I have an RS232 interface instrument. I am able to comunicate with it using Measurement & Automation Explorer's Open Visa Test Panel

So I know the hardware path is there..

I am able to Open a session, and able to Write

But the following Read allways times out with

Timeout expired before operation completed. VISA error code -1073807339

At this point I opened up NI Spy

I noticed the  Open Visa Test Panel uses viWrite and viRead, and those work

Where as when I run my program, my MBS apears to be using viWriteAsync and viReadAsync

Is there a way to configure my MBS session to use the SYNC versions instead of the ASYNC version? I see that LabVIEW apears to have this option, but I dont see it in Measurement Studios

But my software allways gets a timeout

[WearWolf]

Hey grantsenn,

There are some VISA examples that could help solve this issue. The examples are located under :

Start » All Programs » National Instruments » VISA » Examples » DotNET3.5 » SimpleReadWrite » cs

Try looking through the Simple Read and Write examples and see if they help.

Hope this helps!