Added all DG800 SCPI commands here:
https://www.eevblog.com/forum/testgear/lists-of-rigol-scpi-commands/
Thanks, I put the "hidden" commands from your list in that thread.
Some of the interesting ones (response on the right):
:PROJect:PWM:FREQuency? -> '2'
:PROJect:PWM:FINe:CH? -> '0.000'
:PROJect:PWM:LEVel:CH? -> '0.000'
Ones that can only be written:
:PROJect:KEY
:PROJect:DAC:AMP:CH
:PROJect:DAC:OFFSet:CH
:PROJect:MODE
:PROJect:SN
Calibration stuff (I can't read anything back, seems like its just write commands?)
:SOURce<n>:CALibration:RANGNUM
:SOURce<n>:CALibration:SETVALUE
:SOURce<n>:CALibration:MEASVALUE
:SOURce<n>:CALibration:STORE
:SOURce<n>:CALibration:RECALL
:SOURce<n>:CALibration:PRESet
:SOURce<n>:CALibration:DATE
:SOURce<n>:CALibration:HIGHest
Unsure if any of the PROJ commands other than MODEl need a USB key inserted to work.
edit: guide is
here btw, I'm impressed that there are ~470 SCPI commands/queries.