boxcar SR245 communication via GPIB

[GZV]

Hi everyone,

I'm trying to communicate with the SR245 boxcar via GPIB connection. I can see and communicate with the device in the NI MAX environment. However, when I try to run a very simple query VI, there is no response from the device and error 1073807331 (timeout err) or 1073807339 (read) appear . Why I can write and read in the NI MAX environment but not with LabView?

One thought is, in the device manual it was indicated that the read command will wait for a trigger, so how can I implement the trigger command in the LabVIEW?

I appreciate any help.

[Minions]

This product does not respond to the normal SCPI commands and as such, you will get errors.  Read this manual, in particular Figure 24 on listed page 45 which is page 54 of the pdf file.  You will need the CR & LF characters at the end (for GPIB shown 3 pages previous).

[GZV]

Yes I know. The command for query of port 1 should be "?1\r". As I mentioned, I can communicate with it in NI MAX without any problem.

I tried to add trigger command such as PB1 to induce a trigger (Command will be "?1;PB1\r") with no luck. 

Is there any working VI for this instrument out there?

[Minions]

That would be the correct command for RS-232 communications.  For GPIB, it mentions that you need to add the \n after the \r in your command/query.  See the Default Termination Characters for GPIB on listed page 42 of the manual.

[Albert.Geven]

Hi

Just to be sure, use a string (front panel or block diagram both) in the '/' code display mode.

In the normal mode just enter a new line, no slashes.

[GZV]

I still have the time out problem, even with \n as you suggested.