Agilent E4980A list sweep E420 query unterminated

[soon1]

Hi,

I am controlling Agilent E4980A LCR meter using labview 8.6 with GPIB to measure the capacitance for multiple frequencies. I was able to ran the LIST SWEEP frequncies up to 65 points without any problem. Buy if I want to measure more frequency points (says 70 points) then I got the -420 Query Unterminated error. My LCR meter works fine if I trigger manually with 201 measurement points (maxinum limit of points of the LCR meter). I was using the NI E4980a driver. Does anyone have the same problem? Thanks.

Soon

[nyc_(is_out_of_here)]

This is usually a timing issue. The instrument is still in the process of obtaining the measurements and you've already sent it another command.

[soon1]

But I am using the same Labview program. The only thing I change was I add more sweep frequency points on the Agilent E4980a LCR meter and save it into the E4980a memory. Here is how my program works: I will store my list sweep frequency points with all my initial measurement setting into E4980a memory. Labview program will then recall that setting ang trigger. If timing is the issue. Do you have any idea how to correct it? I can't find any command in the E4980a manual.Thanks.

[nyc_(is_out_of_here)]

You have an error somewhere in your VI which you haven't posted.

http://www.keithley.com/data?asset=4072 discusses possible causes for a -420 error 

[Albert.Geven]

The only timing that always is active is the standard 10 sec timeout.

You could try to increase that

[soon1 · Accepted solution]

I change the timing from 10 seconds to 30 seconds and it is working now. Thank you all. I really appreciated your help.

[jjameson18]

Can you explain how to change this setting within Labview?

Thanks!

[nyc_(is_out_of_here)]

Instrument I/O ---> VISA ---> Advanced ---> Set Timeout