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

[Ludger.Lenzen at gmx.de]

> Gesendet: Sonntag, 07. Februar 2016 um 18:30 Uhr
> Von: Ludger.Lenzen at gmx.de
> An: volt-nuts-bounces at febo.com
> Cc: "Adrian Bernhard" <acbern at 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
> 
> 
>