Nut upsuser - Feb 2019 - Delay for ONBATT event

Hi,

my UPS (APC SMC1000C) goes to ONBATT every day for a few seconds. This
event is emitted because of the short daily UPS self-test, which
cannot be disabled.

Depending on the poll interval upsmon/NUT sometimes picks this event
up and a power failure is logged, even if this is not a real power
outage. I would like to prevent that.

Now I was wondering if there is a way to delay the ONBATT event for a
few seconds, so it would only get emitted if the UPS is at ONBATT for
at least ~6 seconds? I am coming from apcupsd, where there was a
"ONBATTERYDELAY" option for this exact purpose, but I have not found
an equivalent for upsmon/NUT yet. Any ideas?

I am using NUT 2.7.4 right now.


Thanks,
Frederik

On Sat, 9 Feb 2019, Fred F wrote:
> my UPS (APC SMC1000C) goes to ONBATT every day for a few seconds. This
> event is emitted because of the short daily UPS self-test, which
> cannot be disabled.
>
> Depending on the poll interval upsmon/NUT sometimes picks this event
> up and a power failure is logged, even if this is not a real power
> outage. I would like to prevent that.
>
> Now I was wondering if there is a way to delay the ONBATT event for a
> few seconds, so it would only get emitted if the UPS is at ONBATT for
> at least ~6 seconds? I am coming from apcupsd, where there was a
> "ONBATTERYDELAY" option for this exact purpose, but I have not
found
> an equivalent for upsmon/NUT yet. Any ideas?
You could try playing with the POLLFREQ and POLLFREQALERT options in 
upsmon.conf, but a clean solution requires the use of timers, for example using 
upsched and a custom script.

Roger