Re: [volt-nuts] GPIB Issue with 3458A

Todd, Since the KE5FX NVRAM download software works, that would seem to indicate the GPIB is working, wouldn't it (download completes and checksums OK)? Randy On Sat, Dec 30, 2017 at 9:52 PM, Randy Evans wrote: > Todd, > > The minimal quick test would be greatly

Re: [volt-nuts] GPIB Issue with 3458A

Todd, The minimal quick test would be greatly appreciated if you have the time. I know this is above and beyond what I would expect but it would be really useful to see if there is any hope for the GPIB on this unit. I will do the service note 13 procedure in the morning. Thanks again, Randy

Re: [volt-nuts] GPIB Issue with 3458A

Randy, Short of swapping out the A5 digital board I have no other ideas. If you don't have a NI or Agilent adapter, I am sure I can find a spare for you to test. There is a Service Note 3458A-13A that deals with GPIB communication failures. There is a test within the document to see if a

Re: [volt-nuts] GPIB Issue with 3458A

Todd, Same as before. Still not working. All it does is print out "HP3458A" on the output console and then just sits there. Randy On Sat, Dec 30, 2017 at 7:43 PM, Todd Micallef wrote: > Randy, > > I just remembered that I changed the duration from 30 minutes to 2

Re: [volt-nuts] GPIB Issue with 3458A

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 wrote: > Randy, > > I just sent it. I haven't modified Martin's code yet. That can be

Re: [volt-nuts] GPIB Issue with 3458A

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 wrote: > Todd, > If you don't mind, just send the code directly to me. > Randy > > Sent from my

Re: [volt-nuts] GPIB Issue with 3458A

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 Date: 12/30/17 6:40 PM (GMT-08:00) To: Discussion of precise voltage measurement

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

Re: [volt-nuts] GPIB Issue with 3458A

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

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 wrote: > Todd, > > I have swapped

Re: [volt-nuts] GPIB Issue with 3458A

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

Re: [volt-nuts] GPIB Issue with 3458A

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

Re: [volt-nuts] GPIB Issue with 3458A

Todd, I tried adding the line but it made no difference. Randy On Sat, Dec 30, 2017 at 12:19 PM, Randy Evans wrote: > Todd, > > Does it matter where I put the line in the Init_Device procedure? > > > procedure Init_Device; > begin; >

Re: [volt-nuts] GPIB Issue with 3458A

Randy, You can add it after the last line with the OUTPUT_FORMAT Todd On Sat, Dec 30, 2017 at 3:19 PM, Randy Evans wrote: > Todd, > > Does it matter where I put the line in the Init_Device procedure? > > > procedure Init_Device; > begin; >

Re: [volt-nuts] GPIB Issue with 3458A

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

Re: [volt-nuts] GPIB Issue with 3458A

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 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

Re: [volt-nuts] GPIB Issue with 3458A

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