GPIB VISA reading timeout

[rodriferfe]

Hi all,

I am trying to control the solartron SI 1287 using GPIB-USB-HS. The thing is that I can write commands with visa write and it performs it but when I want to read something a timeout expired problem comes up.

Things I´ve done:

- When I use GPIB write and read there is no problem.

-When I put bytes at port or enable termination character I get the response but the timeout problem is still on.

Taking into account the manual the outputs finish with "cr fl", shouldn´t the visa read stops?

Thanks a lot

[crossrulz]

Do NOT use the Bytes At Port.  That fuction is specific for serial.  And even then, you shouldn't use it with instruments that use a termination character.

Do not use the Configure Serial Port either.  Use the actual VISA property nodes to set up your bus.  Make sure the termination character is set to a line feed (0xA) and enabled.  Then make sure your VISA Read is given enough bytes to read to get the entire message.  Also make sure your timeout is actually a decently long time (enough time for the instrument to respond and then plenty of buffer).  10 seconds should be the default.

[Dennis_Knutson]

Bytes at Port is for serial communication. How are you setting the termination?

[rodriferfe]

Finally I got the solution, I changed the output termination character of the device for being just cr and instead of using byte at a port I just fixed to have cr (13) and enable termination character and it works. 

Thanks