Randy, I am the person that wrote that EzGPIB script. It was my first before I moved on to Python and I have only written a couple for the different meters I have on hand. Version 1.01 is the most current version I have for the 3458A. I see that I should have added at least one more command to the meter initialization. The additional init command is used in the scripts on xDevs.
Add the following line in the Init_Device procedure EZGPIB_BusWriteData(gpib_address,'END ALWAYS'); This tells the meter to send an EOI on every read. I am looking for one of my Prologix adapters or I would test this. When I find it, I will also test it. I want to make sure there are no further issues. Also, do both meters run the same firmware versions? I wonder if the HP meter is using a much older version. Todd On Sat, Dec 30, 2017 at 10:42 AM, Randy Evans <randyevans2...@gmail.com> wrote: > Todd, > > I have version 1.01. Yes, please e-mail me your modified version. Maybe it > will help. > > Thanks, > > Randy > > On Sat, Dec 30, 2017 at 4:24 AM, Todd Micallef <tmical...@gmail.com> > wrote: > > > Randy, > > > > Is there a version number at the top of the file? I had two versions > (1.00 > > and 1.01). I can't remember all that changed between the two since it has > > been a while but I did find an additional timeout code that limited the > > wait time for reading data to 1 minute. I am guessing I had a problem > with > > mine and added it. > > > > I can email it to you if you want to try it. If it works for you, I will > > have Illya update it on xDevs. > > > > Todd > > > > On Sat, Dec 30, 2017 at 12:39 AM, Randy Evans <randyevans2...@gmail.com> > > wrote: > > > > > I am still unable to get my HP-3458A to work with the xdevs program > > > "HP3458A_Measure_DMM_Noise.488" (https://xdevs.com/article/dmm_noise/ > ). > > > It > > > works fine with my Agilent 3458A and with a friend's HP-3458A and his > > > Agilent 3458A using the EZGPIB program. The SW versions are identical > > with > > > my friend's DMMs, the HP units are (8.2) and with the Agilent units are > > > (9.2). However, both of my units work fine with the KE5FX GPIB Toolkit > > > HP3458.EXE program to download the NVRAM CAL data. This would seem to > > > indicate that my HP-3458 GPIB works at least partially. > > > > > > Does anyone have a EZGPIB program that I could try to run (that is > > > different from the Xdev program)? It would be nice to see if I could > get > > > something to work other than the HP3458.EXE program. Or if any one has > > > some ideas on what to look for. > > > > > > Thanks, > > > > > > Randy Evans > > > > > > On Tue, Dec 26, 2017 at 7:24 PM, Randy Evans <randyevans2...@gmail.com > > > > > wrote: > > > > > > > I am hoping some of you experts might be able to assist with a > strange > > > > problem i am having trying to make automated measurements using > EZGPIB > > > with > > > > an Agilent and an HP 3458A. I have a program given to me by Martin > > > > Reynolds, which is a variant on the Xdevs noise measurement program. > > > > Martin's program continuously reads the voltage measurements > > sequentially > > > > from the two meters and then stores then in a measurements file, > along > > > with > > > > the temperature measurements from both meters. The program works > fine > > on > > > > his Agilent and HP 3458As. > > > > > > > > On my two 3458As, it takes the temperature measurements just fine but > > > only > > > > takes a voltage measurement from the Agilent unit. The HP unit will > > not > > > > make any voltage measurements although I can see both the 3458As in > > talk > > > > states and, of course, it does sent the temperature measurements. > > > However, > > > > if I turn the HP unit off and then on again, the HP will start to > take > > > > voltage and temperature measurements and send them to the PC. > > > > > > > > Any ideas on what might be causing the strange behavior? > > > > > > > > Thanks, > > > > > > > > Randy Evans > > > > > > > _______________________________________________ > > > volt-nuts mailing list -- volt-nuts@febo.com > > > To unsubscribe, go to https://www.febo.com/cgi-bin/ > > > mailman/listinfo/volt-nuts > > > and follow the instructions there. > > > > > _______________________________________________ > > volt-nuts mailing list -- volt-nuts@febo.com > > To unsubscribe, go to https://www.febo.com/cgi-bin/ > > mailman/listinfo/volt-nuts > > and follow the instructions there. > > > _______________________________________________ > volt-nuts mailing list -- volt-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/volt-nuts > and follow the instructions there. > _______________________________________________ volt-nuts mailing list -- volt-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.