Randy, I just remembered that I changed the duration from 30 minutes to 2 minutes to speed up the test. I forgot to change it back.
Todd On Sat, Dec 30, 2017 at 10:27 PM, Todd Micallef <[email protected]> wrote: > Randy, > > I just sent it. I haven't modified Martin's code yet. That can be done > once you confirm it works for you. > > Todd > > On Sat, Dec 30, 2017 at 10:12 PM, randyevans2688 <[email protected] > > wrote: > >> Todd, >> If you don't mind, just send the code directly to me. >> Randy >> >> Sent from my Verizon, Samsung Galaxy smartphone >> -------- Original message --------From: Todd Micallef < >> [email protected]> Date: 12/30/17 6:40 PM (GMT-08:00) To: Discussion >> of precise voltage measurement <[email protected]> Subject: Re: >> [volt-nuts] GPIB Issue with 3458A >> Randy, >> >> I have not written anything else for the 3458A using EzGPIB. If you have >> a >> National Instruments or Agilent adapters, I have a handful of Python code >> I >> use to measure some of my standards. >> >> If you are reading the temperature from the HP meter, I would think that >> the problem lies in how the triggering is configured. The triggering has >> been changed in this script so it may work for you. There was an >> additional >> command added for disabling the buffer. >> The code can be posted here, if possible or I can email it to you for >> testing. >> >> Todd >> >> On Sat, Dec 30, 2017 at 9:26 PM, randyevans2688 <[email protected] >> > >> wrote: >> >> > Todd, thanks for the help. Where will you post the new code? >> > BTW, do you have any very simple code that is likely to work. I am >> > interested in seeing if anything other than KE5FX's memory dump program >> > will work on my HP3458A. >> > Thanks again, >> > Randy >> > >> > Sent from my Verizon, Samsung Galaxy smartphone >> > -------- Original message --------From: Todd Micallef < >> [email protected]> >> > Date: 12/30/17 6:13 PM (GMT-08:00) To: Discussion of precise voltage >> > measurement <[email protected]> Subject: Re: [volt-nuts] GPIB Issue >> with >> > 3458A >> > Randy, >> > >> > I found the Prologix adapters and have modified the code in the original >> > script. I am doing a test run now and will post the script when I am >> > certain I didn't make it worse. >> > >> > Todd >> > >> > On Sat, Dec 30, 2017 at 7:15 PM, Randy Evans <[email protected]> >> > wrote: >> > >> > > Todd, >> > > >> > > I have swapped cables, moved the Prologix adapter to both meters >> (Agilent >> > > works, HP doesn't), tried Martins code as well as Xdevs's. I have not >> > > tried another PC yet, maybe the next step. >> > > >> > > Here is the code that Martin modified for two meters, as well as the >> > > modified Xdev's code per your directions (V1.02). >> > > >> > > Thanks, >> > > >> > > Randy >> > > >> > > On Sat, Dec 30, 2017 at 3:55 PM, Todd Micallef <[email protected]> >> > > wrote: >> > > >> > > > Randy, >> > > > >> > > > I will continue to look for my adapter. I haven't used it for quite >> a >> > > > while. >> > > > >> > > > I have seen similar issues and swapped cables, moved the adapter to >> the >> > > > other meter, etc... One of my cables was bad from one side of the >> > > connector >> > > > to the other (on the same end of the cable) and caused me lots of >> > wasted >> > > > time. Weird reading errors were happening. >> > > > >> > > > Would you email me Martin's code so I can test it here and I will >> see >> > if >> > > > anything can be done to replicate your issue. >> > > > >> > > > Todd >> > > > >> > > > >> > > > On Sat, Dec 30, 2017 at 6:42 PM, Randy Evans < >> [email protected] >> > > >> > > > wrote: >> > > > >> > > > > Todd, >> > > > > >> > > > > I tried adding the line but it made no difference. >> > > > > >> > > > > Randy >> > > > > >> > > > > On Sat, Dec 30, 2017 at 12:19 PM, Randy Evans < >> > > [email protected]> >> > > > > wrote: >> > > > > >> > > > > > Todd, >> > > > > > >> > > > > > Does it matter where I put the line in the Init_Device >> procedure? >> > > > > > >> > > > > > >> > > > > > procedure Init_Device; >> > > > > > begin; >> > > > > > EZGPIB_BusWriteData(gpib_address,GET_ID); // Get >> ID >> > of >> > > > > meter >> > > > > > if EZGPIB_BusWaitForData(gpib_address,meter_id,Timeout) then >> > > > > > EZGPIB_ScreenWriteLn(meter_id); >> > > > > > >> > > > > > EZGPIB_BusWriteData(gpib_address,TRIGGER_SOURCE); // Hold >> > > > trigger >> > > > > > until meter can be setup >> > > > > > EZGPIB_BusWriteData(gpib_address,'INBUF ON'); >> > > > > > EZGPIB_BusWriteData(gpib_address,AUTO_ZERO); >> > > > > > EZGPIB_BusWriteData(gpib_address,OUTPUT_FORMAT); >> > > > > > end; >> > > > > > >> > > > > > >> > > > > > Randy >> > > > > > >> > > > > > On Sat, Dec 30, 2017 at 11:20 AM, Todd Micallef < >> > [email protected] >> > > > >> > > > > > wrote: >> > > > > > >> > > > > >> 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 < >> > > > [email protected] >> > > > > > >> > > > > >> 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 < >> > > [email protected] >> > > > > >> > > > > >> > 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 < >> > > > > >> [email protected]> >> > > > > >> > > 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 < >> > > > > >> [email protected] >> > > > > >> > > >> > > > > >> > > > 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 -- [email protected] >> > > > > >> > > > To unsubscribe, go to https://www.febo.com/cgi-bin/ >> > > > > >> > > > mailman/listinfo/volt-nuts >> > > > > >> > > > and follow the instructions there. >> > > > > >> > > > >> > > > > >> > > _______________________________________________ >> > > > > >> > > volt-nuts mailing list -- [email protected] >> > > > > >> > > To unsubscribe, go to https://www.febo.com/cgi-bin/ >> > > > > >> > > mailman/listinfo/volt-nuts >> > > > > >> > > and follow the instructions there. >> > > > > >> > > >> > > > > >> > _______________________________________________ >> > > > > >> > volt-nuts mailing list -- [email protected] >> > > > > >> > To unsubscribe, go to https://www.febo.com/cgi-bin/ >> > > > > >> > mailman/listinfo/volt-nuts >> > > > > >> > and follow the instructions there. >> > > > > >> > >> > > > > >> _______________________________________________ >> > > > > >> volt-nuts mailing list -- [email protected] >> > > > > >> To unsubscribe, go to https://www.febo.com/cgi-bin/m >> > > > > >> ailman/listinfo/volt-nuts >> > > > > >> and follow the instructions there. >> > > > > >> >> > > > > > >> > > > > > >> > > > > _______________________________________________ >> > > > > volt-nuts mailing list -- [email protected] >> > > > > To unsubscribe, go to https://www.febo.com/cgi-bin/ >> > > > > mailman/listinfo/volt-nuts >> > > > > and follow the instructions there. >> > > > > >> > > > _______________________________________________ >> > > > volt-nuts mailing list -- [email protected] >> > > > To unsubscribe, go to https://www.febo.com/cgi-bin/ >> > > > mailman/listinfo/volt-nuts >> > > > and follow the instructions there. >> > > > >> > > >> > > _______________________________________________ >> > > volt-nuts mailing list -- [email protected] >> > > To unsubscribe, go to https://www.febo.com/cgi-bin/ >> > > mailman/listinfo/volt-nuts >> > > and follow the instructions there. >> > > >> > _______________________________________________ >> > volt-nuts mailing list -- [email protected] >> > To unsubscribe, go to https://www.febo.com/cgi-bin/ >> > mailman/listinfo/volt-nuts >> > and follow the instructions there. >> > _______________________________________________ >> > volt-nuts mailing list -- [email protected] >> > To unsubscribe, go to https://www.febo.com/cgi-bin/ >> > mailman/listinfo/volt-nuts >> > and follow the instructions there. >> > >> _______________________________________________ >> volt-nuts mailing list -- [email protected] >> To unsubscribe, go to https://www.febo.com/cgi-bin/m >> ailman/listinfo/volt-nuts >> and follow the instructions there. >> _______________________________________________ >> volt-nuts mailing list -- [email protected] >> To unsubscribe, go to https://www.febo.com/cgi-bin/m >> ailman/listinfo/volt-nuts >> and follow the instructions there. >> > > _______________________________________________ volt-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.
