AnsweredAssumed Answered

34401A RS232 connection issues

Question asked by linners on Jan 19, 2016
Latest reply on Mar 20, 2016 by linners
I've been tearing my hair out all day! I have an older 34401A (firmware rev 3-1-1), and have connected it to my windows 7 x64 machine via a USB-RS232 converter (a Tripp-Lite Keyspand USA-49WG). I have installed the latest IO libraries and BenchVue software, and the latest drivers for the 34401A. I am able to successfully install and communicate with the 34401A through the Keysight Connection Expert, but I have had little luck within the BenchVue software.

At one stage I did reinstall the BenchVue software, and after a PC reboot, I was able to communicate with my 34401A and perform some measurements. Halfway through the measurements, my PC reset unexpectedly, and when it rebooted, I could no longer connect through the BenchVue software.

In the Keysight Connection Expert, I can "Send Commands to this Instrument" and everything seems to be working fine. In the BenchVue software the 34401A comes up under the hidden or unsupported instruments with the green tick (I guess indicating that it is hidden, but supported). The "show" button is grayed out, and try as I may, I cannot get the 34401A to show up!

I have attached a couple of screenshots to help explain what I am seeing.

Thanks in advance for any help you can offer!  

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