I'm trying to connect a 34970A w/ two 34901A modules to BenchVue but am having trouble communicating with the instrument. The weird thing is I can connect through the latest version of Connection Expert 17.1 and 16.3, send SCPI commands and receive a response, and have no trouble connecting and running scans with Benchlink Data Logger. I can also use BenchVue to connect to my 34401A without issue. BenchVue recognizes my 34970A and GPIB address. It also adds the icon to the bottom of the screen. However when I try to connect, it just goes idle forever and says "Application launching. Please wait..." I'm connected through a GPIB cable and all the settings on the instrument are set up properly. I'm running Win 7 SP1 32-bit OS. Any advice?
I'm thinking it probably has something to do with the BenchVue program and not my equipment since I don't have any problem communicating with the equipment outside of BenchVue. I even tried uninstalling and reinstalling the program without any change.
My last resort is to try a GPIB to USB connection and see if that works...but I cannot see why that would matter. I'll try this tomorrow.
Any help would be very appreciated...thanks!
Gabe
I'm thinking it probably has something to do with the BenchVue program and not my equipment since I don't have any problem communicating with the equipment outside of BenchVue. I even tried uninstalling and reinstalling the program without any change.
My last resort is to try a GPIB to USB connection and see if that works...but I cannot see why that would matter. I'll try this tomorrow.
Any help would be very appreciated...thanks!
Gabe
I can understand the frustration. When we see messages like "Connection Expert sees it but BenchVue doesn't", it is almost always because NI VISA is also on the machine, and the IO is actually getting stuck somewhere in NI VISA. If both are installed (and they needn't be - you only need one), then NI VISA *must* be made primary (using Connection Expert's "VISA Conflict Manager") because it does not know how to be secondary. Connection Expert uses Keysight VISA to do direct IO via SCPI to an instrument, overriding the NI VISA setting, which is why you can talk to instruments just fine from there. But when BenchVue tries to communicate, the VISA calls are made via the NI version, and that dll is more than likely broken. There are two ways to fix this: 1) Remove NI VISA completely, making Keysight VISA primary, or 2) Reinstall NI VISA, then use Keysight Connection Expert to make NI VISA the preferred, default VISA on all interfaces that are in use.
Brian