09-15-2025 08:30 AM
Hello,
While using the Keysight N6705C I'm getting an error when trying to read back the voltage or power through Labview when passing through the command line :FETC:ARR:POW? (@1) or :FETC:ARR:VOLT? (@1). It works fine if I want current and pass the command :FETC:ARR:CURR? (@1). The error I'm getting is:
Error -1074001424 occurred at an unidentified location
Possible reason(s):
agn6700 Error Query;
instrument reports:
+303,"There is not a valid acquisition to fetch from"
Any help on this matter would be much appreciated.
Simon
09-15-2025 09:33 AM
I'm using a N6781A module in the N6705C chassis.
09-16-2025 11:20 AM
Based on the error, I suspect you can measure voltage or current at a time. Perhaps by default, it measures current, which is why there is no error. When you request a voltage reading, it complains that you have not configured it to measure voltage.
Please check the programmer's manual.
09-17-2025 02:22 AM
Hi Santhosh,
Thanks for coming back to me. I've had another look through the manual and I can't see anything else that I need to do to the SMU in order to read Voltage or Power (see snippet below on Fetch Array Command). In order to read a measurement from the device I am using the Agilent N6700 Series Fetch Array VI, which has the commands built into it. Also I've tried a separate module (N6762A) within the N6705C and I can get it to measure all three (current, voltage and power).
Is there something else I need to do to the N6781A in order to measure the Voltage and Power?
Thanks,
Simon