[Nut-upsuser] Microdowell (cpsups) driver segfault

mav at wastegate.net mav at wastegate.net
Sat Jun 23 12:18:32 UTC 2007

Quoting Arjen de Korte <nut+users at de-korte.org>:

>>> after this it seems to work ok, even if it the numbers reported for
>>> input voltage look a little low.
>>> (205 to 211 in a country where nominal voltage is supposed to be 230).
>>> Maybe it's just lousy power.(I have no easy way to verify)
> I noticed that another (probably unrelated) driver scales the output
> voltage, where a reading (from the UPS) of 208 is displayed as 230V. This
> is probably needed, since the UPS can't output a value higher than 255,
> which is too low for countries that have a nominal mains voltage of 220 to
> 240V.
> Unfortunately, I don't know if we should multiply the value read from the
> UPS by (230/208) or that we should add an offset (230-208).
>> those numbers come directly from the ups itself.  My cyberpower unit
>> displays the correct voltage (I am in the US, we have 120V line power);
>> however, there are probably different versions of the firmware that might
>> not have the correct voltage readings (or your power fluctuates a lot)..
> What I would like to know, is what is read from the UPS. The output of
> 'upsc' can help here.

Let me know if you need any other data.  IIRC, it sends that info back  
everytime the ups is polled.

battery.capacity: 8
battery.charge: 100.0
battery.charge.low: 25
battery.packs: 2
battery.voltage.nominal: 12
driver.name: powerpanel
driver.parameter.pollinterval: 2
driver.parameter.port: /dev/cuad0
driver.version.internal: 0.22
input.frequency: 60
input.frequency.high: 63
input.frequency.low: 47
input.transfer.high: 135
input.transfer.low: 88
input.voltage: 121
input.voltage.nominal: 120
output.voltage: 122
ups.firmware: 1.600
ups.load: 6
ups.mfr: CYBER POWER
ups.model: BC1200
ups.power.nominal: 1200
ups.realpower.nominal: 720
ups.serial: 000000000000
ups.status: OL
ups.temperature: 28

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