Hi
I am trying to use a GPIB-USB-HS to control an old HP 436 power meter. using Labview.
I have an Agilent 82357A USB to GPIB interface, and using that my routine which is a VISA open followed by VISA read then close works fine every time I call it. Using the same routine with the GPIB-USB-HS it will read correctly once and then when called again it imes out with the HP436 stuck in remote. If I switch off the power meter and switch it back on aagin I can read it, but again only once.
Serching the forum I found reference to setting the EOS byte to LF. Using NI MAX I've done this , but it makes no difference. I've ried pretty much all combinations in the termination settings with the same result..
I've also found reference to sendign CR LF to terminate commands, but can't find any way of doing that using the VISA blocks.
The reason I'm wanting to use the USB-HS rather than just stick with the Agilent adaptor is a move away from 32 bit computers to 64 and the lack of 64 bit drivers for the old adaptor. It works with W7 32 bit so I could kick the can down the road a bit, probably unitl I retire and then it won't be my problem by forcing the test guys to use 32 bit W7, but I'd like to get it sorted properly, so If anyone has any ideas I'd apreciate hearing them.
Thanks
Peter