Re: [volt-nuts] Fw: Datron 1281 / 1271 secret GPIB cmds for CALRAM-Readout

[Wim de Jong]

PeLuLe,

I've a Fluke 9010A with a 9000A-68000 pod.
This equipment is capable to read out the cal ram data, if you know the 
adresses, but as binary information.


Can this be of any help?
WimdJ

Op 18-2-2016 om 20:37 schreef ludger.len...@gmx.de:

Yes, I absolutey agree. Also in my understandig a good re-engineering means a 
reproducabel, secure and as good as possible documented.
Due to the sensivity of a possible CAL-Data damage the tests for verification 
should be well prepared.
I am actually digging into the firmware, to check how the data is processed.
My "worst case" scenario is, if there is no suitable command, to add one by 
extendig the firmware.
There is ~4k used ROM space free for, should be more than enought.

BR
PeLuLe


Gesendet: Donnerstag, 18. Februar 2016 um 04:41 Uhr
Von: "Illya Tsemenko" <il...@xdevs.com>
An: "volt-nuts@febo.com" <volt-nuts@febo.com>
Betreff: [volt-nuts] Fw: Datron 1281 / 1271 secret GPIB cmds for CALRAM-Readout

PeLuLe, thank you for files.



The only reason why article hidden from list, is it's draft status. I'd like to 
publish well-prepared and detailed content, which can be used by other 
volt-nuts without confusion.

It's still work in progress, so if you have anything to correct or contribute, 
feel free to share.



BR,

Illya "TiN" Tsemenko





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[volt-nuts] Fw: Datron 1281 / 1271 secret GPIB cmds for CALRAM-Readout

[Illya Tsemenko]

PeLuLe, thank you for files.



The only reason why article hidden from list, is it's draft status. I'd like to 
publish well-prepared and detailed content, which can be used by other 
volt-nuts without confusion.

It's still work in progress, so if you have anything to correct or contribute, 
feel free to share.



BR,

Illya "TiN" Tsemenko





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Re: [volt-nuts] Fw: Datron 1281 / 1271 secret GPIB cmds for CALRAM-Readout

[Ludger . Lenzen]

Thanks for the link, Todd.

It's a great site, I didn't find, even I looked for it. I regular check xDevs 
for interesting project.

I have looked to the page and found a minor errors I like to note:
The "Datron 1281 Calibration and service manual, Volume 1, Issue 1, July 1989"
in fact is the complete SM (Vol1 and Vol2), I know as I have uploaded to KO4BB 
myself :-)

My firmware is: v3.12, 05/11/96. I have placed the ROM files to a Dropbox 
folder.

On the site is mentioned, you are looking for the specs of the DC405E2 (VFD 
1x40 DOT Matrix Display).
I could manage to get the original spec from ITRON service some years ago (I am 
a good customer).
I have optimized and added some useful information. I dropped to the Dropbox 
also.

I had the plan for a "Datron 1281 DC4052 replacement". Mine was broken on 
shipping.
I have added a picture of latest state of project.
It's on hold, as I got a complete Display Assembly and had no need for anymore.

I will keep the Dropbox for one week, than I will delete as I need the space 
for a joined project.
Link: https://www.dropbox.com/sh/rxeb86eq9m35tyu/AADwDNeCYQWp4RSZ2rVQ3y-ua?dl=0

BR
PeLuLe



> Gesendet: Montag, 08. Februar 2016 um 00:56 Uhr
> Von: "Todd Micallef" <tmical...@gmail.com>
> An: "Discussion of precise voltage measurement" <volt-nuts@febo.com>
> Betreff: Re: [volt-nuts] Fw: Datron 1281 / 1271 secret GPIB cmds for 
> CALRAM-Readout
>
> https://xdevs.com/fix/d1281/
> 
> 
> 
> On Sun, Feb 7, 2016 at 6:43 PM, <ludger.len...@gmx.de> wrote:
> 
> > Hi Todd,
> > have tried to find the information @ xDevs. No luck.
> > Is there a link you can share?
> >
> > BR
> > PeLuLe
> >
> >
> > > Gesendet: Sonntag, 07. Februar 2016 um 21:59 Uhr
> > > Von: "Todd Micallef" <tmical...@gmail.com>
> > > An: "Discussion of precise voltage measurement" <volt-nuts@febo.com>
> > > Betreff: Re: [volt-nuts] Fw: Datron 1281 / 1271 secret GPIB cmds for
> > CALRAM-Readout
> > >
> > > PeLuLe,
> > >
> > > I am currently working on two 1281's. If you have anything you would like
> > > me to try, let me know. I am certain my cal constants are not good on one
> > > of them. The battery was just changed a few days ago and it appears to be
> > > the original from '87. I also had some intermittent NVRAM errors.
> > >
> > > Replacing caps worked for the first 1281 and cleared the DCV 2182 error.
> > > The project is a WIP and everything is being documented on xDevs.
> > >
> > > Also, please post your FW versions. Both of mine are at different revs
> > and
> > > I would like to know the different versions from Datron/Wavetek
> > >
> > > On Sun, Feb 7, 2016 at 2:33 PM, <ludger.len...@gmx.de> wrote:
> > >
> > > >
> > > >
> > > > > Gesendet: Sonntag, 07. Februar 2016 um 18:30 Uhr
> > > > > Von: ludger.len...@gmx.de
> > > > > An: volt-nuts-boun...@febo.com
> > > > > Cc: "Adrian Bernhard" <acb...@gmx.de>
> > > > > Betreff: Datron 1281 / 1271 secret GPIB cmds for CALRAM-Readout
> > > > >
> > > > > Hi volt-nuts
> > > > >
> > > > > I like to backup the Datron 1281 CAL RAM data. Mine need to be
> > > > refurbished (caps replacement, case cleaning...)
> > > > > The 1281 quite good in cal (~3ppm difference to my 3458A which had
> > last
> > > > cal 2014/OCT), which I don't want to risk.
> > > > > In any case this migh a helful knowledge for all of us.
> > > > >
> > > > > I am lucky having another 1281 "for part" without a Display- and
> > > > DC-Assembly but a wokring Digital Board.
> > > > > I dumped the ROM to have a deep look into the GPIB commands and
> > searched
> > > > for potential undocumented existing
> > > > > (like it was done for the 3458A already).
> > > > >
> > > > > I found following, in the service and user manual not documented,
> > > > potential commands (?):
> > > > >   RAM = may a RAM command, seems to be the best chance
> > > > >   PRIM = may a subfunction of RAM for primary RAM
> > > > >   SECN = may a subfunction of RAM for secondary RAM
> > > > >
> > > > >   IPZ = no glue yet
> > > > >
> > > > >   YEUK = command to set something, no glue yet about function
> > > > >   YEUK? = query comand of the YEUK command
> > >

Re: [volt-nuts] Fw: Datron 1281 / 1271 secret GPIB cmds for CALRAM-Readout

[Todd Micallef]

PeLuLe,

I am currently working on two 1281's. If you have anything you would like
me to try, let me know. I am certain my cal constants are not good on one
of them. The battery was just changed a few days ago and it appears to be
the original from '87. I also had some intermittent NVRAM errors.

Replacing caps worked for the first 1281 and cleared the DCV 2182 error.
The project is a WIP and everything is being documented on xDevs.

Also, please post your FW versions. Both of mine are at different revs and
I would like to know the different versions from Datron/Wavetek

On Sun, Feb 7, 2016 at 2:33 PM,  wrote:

>
>
> > Gesendet: Sonntag, 07. Februar 2016 um 18:30 Uhr
> > Von: ludger.len...@gmx.de
> > An: volt-nuts-boun...@febo.com
> > Cc: "Adrian Bernhard" 
> > Betreff: Datron 1281 / 1271 secret GPIB cmds for CALRAM-Readout
> >
> > Hi volt-nuts
> >
> > I like to backup the Datron 1281 CAL RAM data. Mine need to be
> refurbished (caps replacement, case cleaning...)
> > The 1281 quite good in cal (~3ppm difference to my 3458A which had last
> cal 2014/OCT), which I don't want to risk.
> > In any case this migh a helful knowledge for all of us.
> >
> > I am lucky having another 1281 "for part" without a Display- and
> DC-Assembly but a wokring Digital Board.
> > I dumped the ROM to have a deep look into the GPIB commands and searched
> for potential undocumented existing
> > (like it was done for the 3458A already).
> >
> > I found following, in the service and user manual not documented,
> potential commands (?):
> >   RAM = may a RAM command, seems to be the best chance
> >   PRIM = may a subfunction of RAM for primary RAM
> >   SECN = may a subfunction of RAM for secondary RAM
> >
> >   IPZ = no glue yet
> >
> >   YEUK = command to set something, no glue yet about function
> >   YEUK? = query comand of the YEUK command
> >
> >   CALISS? = seems to be a qery for calibration purpose
> >
> > To (hopefully) save some of the allways limited private time, I would
> like to aks, if some of you have seen that commands (?) or have more
> details on them. They may used at other Daltron tools also...
> > Next I will start with the debugging of the unknown remaining commands
> on processor board level.
> >
> > Thanks for help already in advance.
> > BR
> > PeLuLe
> >
> >
> >
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[volt-nuts] Fw: Datron 1281 / 1271 secret GPIB cmds for CALRAM-Readout

[Ludger . Lenzen]

> Gesendet: Sonntag, 07. Februar 2016 um 18:30 Uhr
> Von: ludger.len...@gmx.de
> An: volt-nuts-boun...@febo.com
> Cc: "Adrian Bernhard" 
> Betreff: Datron 1281 / 1271 secret GPIB cmds for CALRAM-Readout
>
> Hi volt-nuts
> 
> I like to backup the Datron 1281 CAL RAM data. Mine need to be refurbished 
> (caps replacement, case cleaning...)
> The 1281 quite good in cal (~3ppm difference to my 3458A which had last cal 
> 2014/OCT), which I don't want to risk.
> In any case this migh a helful knowledge for all of us.
> 
> I am lucky having another 1281 "for part" without a Display- and DC-Assembly 
> but a wokring Digital Board.
> I dumped the ROM to have a deep look into the GPIB commands and searched for 
> potential undocumented existing
> (like it was done for the 3458A already).
> 
> I found following, in the service and user manual not documented, potential 
> commands (?):
>   RAM = may a RAM command, seems to be the best chance
>   PRIM = may a subfunction of RAM for primary RAM
>   SECN = may a subfunction of RAM for secondary RAM
> 
>   IPZ = no glue yet
> 
>   YEUK = command to set something, no glue yet about function
>   YEUK? = query comand of the YEUK command
> 
>   CALISS? = seems to be a qery for calibration purpose
> 
> To (hopefully) save some of the allways limited private time, I would like to 
> aks, if some of you have seen that commands (?) or have more details on them. 
> They may used at other Daltron tools also...
> Next I will start with the debugging of the unknown remaining commands on 
> processor board level.
> 
> Thanks for help already in advance.
> BR
> PeLuLe
> 
> 
> 
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Re: [volt-nuts] Fw: Datron 1281 / 1271 secret GPIB cmds for CALRAM-Readout

[Ludger . Lenzen]

Hi Todd,
have tried to find the information @ xDevs. No luck.
Is there a link you can share?

BR
PeLuLe


> Gesendet: Sonntag, 07. Februar 2016 um 21:59 Uhr
> Von: "Todd Micallef" <tmical...@gmail.com>
> An: "Discussion of precise voltage measurement" <volt-nuts@febo.com>
> Betreff: Re: [volt-nuts] Fw: Datron 1281 / 1271 secret GPIB cmds for 
> CALRAM-Readout
>
> PeLuLe,
> 
> I am currently working on two 1281's. If you have anything you would like
> me to try, let me know. I am certain my cal constants are not good on one
> of them. The battery was just changed a few days ago and it appears to be
> the original from '87. I also had some intermittent NVRAM errors.
> 
> Replacing caps worked for the first 1281 and cleared the DCV 2182 error.
> The project is a WIP and everything is being documented on xDevs.
> 
> Also, please post your FW versions. Both of mine are at different revs and
> I would like to know the different versions from Datron/Wavetek
> 
> On Sun, Feb 7, 2016 at 2:33 PM, <ludger.len...@gmx.de> wrote:
> 
> >
> >
> > > Gesendet: Sonntag, 07. Februar 2016 um 18:30 Uhr
> > > Von: ludger.len...@gmx.de
> > > An: volt-nuts-boun...@febo.com
> > > Cc: "Adrian Bernhard" <acb...@gmx.de>
> > > Betreff: Datron 1281 / 1271 secret GPIB cmds for CALRAM-Readout
> > >
> > > Hi volt-nuts
> > >
> > > I like to backup the Datron 1281 CAL RAM data. Mine need to be
> > refurbished (caps replacement, case cleaning...)
> > > The 1281 quite good in cal (~3ppm difference to my 3458A which had last
> > cal 2014/OCT), which I don't want to risk.
> > > In any case this migh a helful knowledge for all of us.
> > >
> > > I am lucky having another 1281 "for part" without a Display- and
> > DC-Assembly but a wokring Digital Board.
> > > I dumped the ROM to have a deep look into the GPIB commands and searched
> > for potential undocumented existing
> > > (like it was done for the 3458A already).
> > >
> > > I found following, in the service and user manual not documented,
> > potential commands (?):
> > >   RAM = may a RAM command, seems to be the best chance
> > >   PRIM = may a subfunction of RAM for primary RAM
> > >   SECN = may a subfunction of RAM for secondary RAM
> > >
> > >   IPZ = no glue yet
> > >
> > >   YEUK = command to set something, no glue yet about function
> > >   YEUK? = query comand of the YEUK command
> > >
> > >   CALISS? = seems to be a qery for calibration purpose
> > >
> > > To (hopefully) save some of the allways limited private time, I would
> > like to aks, if some of you have seen that commands (?) or have more
> > details on them. They may used at other Daltron tools also...
> > > Next I will start with the debugging of the unknown remaining commands
> > on processor board level.
> > >
> > > Thanks for help already in advance.
> > > BR
> > > PeLuLe
> > >
> > >
> > >
> > ___
> > 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.
> >
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> 
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