[Nut-upsdev] UPS commands

Charles Lepple clepple at gmail.com
Mon Mar 23 23:24:15 UTC 2015

On Mar 23, 2015, at 10:33 AM, Rob Groner <rgroner at RTD.com> wrote:

> Ok, so the reason I keep asking about this is in case I have to actually implement this in our UPS.
> I meant that a human could power the UPS back on. Nearly all of the UPSes I have worked on have momentary power buttons (either toggle on/off, or a pair of on and off buttons).
> So, when a power-off-stay-off comes through, then the UPS *itself* shuts down as well, and essentially goes into a soft-off that won’t respond to resumed AC power from the wall outlet?  And when the UPS *does* get powered back on (via a button press), then the power outlet for the PC will come back on as well….  I see.  So the UPS basically has an “ignore the wall power” flag that gets set when you tell it stayoff, and for poweroff-return, it wouldn’t ignore wall power, and so would come back on when AC is restored.


It's a little closer to what some PC BIOSes default to, where they will stay off when power comes back, if they were last commanded to turn off.

Charles Lepple
clepple at gmail

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