> 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
>
>
>
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