boxcar SR245 communication via GPIB

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.