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Products => Test Equipment => Topic started by: KSP on November 27, 2015, 12:25:57 pm

Title: Solartron 7081 DMM GP-IB programming getting no response
Post by: KSP on November 27, 2015, 12:25:57 pm

Hi all

I'm trying to write a calibration/verification routine for a 7081 DMM, but I can't seem to get it talking. It will listen just fine, Using NI-MAX's 488.2 Communicator I can send it individual lines of commands and I am able to set up ranges etc. but I cant seem to figure out how to get a response. With modern SCPI instruments the setting and result are different commands (i.e. "RANGe:VOLT DC" being the setup, and something like "FETch?" to acquire the result) but the commands for this seem to just set up the measurement samples, but not output anything. Am I missing a termination character or something? I'm setting the range with "MODe,VDC" and measurement single measurement using "MEAsure,SIngle", which are received by the unit just fine and I can see the reading on the display, but it returns no result to my PC. And querying using "MEAsure?" should return the measurement type (i.e. SIngle) but this returns nothing either, just a time-out error.

I've checked the rear of the instrument and the DIP switches for Listen Only and Talk Only are both off, beaning it should listen and talk.

Any ideas?

Title: Re: Solartron 7081 DMM GP-IB programming getting no response
Post by: 3roomlab on November 27, 2015, 12:43:57 pm

i saw this nice solartron website, maybe you can check
http://www.perdrix.co.uk/Solartron7081/index.htm (http://www.perdrix.co.uk/Solartron7081/index.htm)

gee whiz, all the used solartron under $2k are gone !

were you one of them buyers?

i hope to get 1 btw :P

**edit : mickle T is a 7081 owner, PM him :P (dmm noise thread #65)

Title: Re: Solartron 7081 DMM GP-IB programming getting no response
Post by: KSP on November 27, 2015, 12:51:57 pm

Thanks

I skimmed through that site earlier and it is all about the repair from what I could see, whereas I'm 90% certain the meter is fine and I'm just programming it wrong.

And no I didn't purchase this meter used, we have had it since new and I just dug it out from the pile in an attempt to find a use for it. Believe its from an old ATE test set which got decommissioned years ago

Title: Re: Solartron 7081 DMM GP-IB programming getting no response
Post by: picburner on November 27, 2015, 05:31:21 pm

For get answers from my 7081 I had to set:
DELI=END               page 3.13 User Manual
and
OUTPUT,GP-IB,ON    page 3.37 User Manual

Title: Re: Solartron 7081 DMM GP-IB programming getting no response
Post by: KSP on November 28, 2015, 09:12:24 am

Perfect! Seems to have worked nicely :)

Title: Re: Solartron 7081 DMM GP-IB programming getting no response
Post by: KSP on November 28, 2015, 09:13:05 am

Thank you very much!