Factorio Forums

I'm playing on 1.1 in multiplayer. I've noticed that, when power is cut to arithmetic and decider combinators, their stored electricity drains almost but not completely (seems to stay around 1% or something like that). This results in them continuing to output their signal indefinitely. I expect them to lose charge completely and reset, stopping all signal output until repowered.

This is intended, so that combinator systems don't lose all the data and state when power goes out

Pyroguy wrote: ↑Tue Nov 24, 2020 11:28 pm I'm playing on 1.1 in multiplayer. I've noticed that, when power is cut to arithmetic and decider combinators, their stored electricity drains almost but not completely (seems to stay around 1% or something like that). This results in them continuing to output their signal indefinitely. I expect them to lose charge completely and reset, stopping all signal output until repowered.

Ha! So I wasn't going crazy. Was trying to use power switches to shut things off and thought I was losing my god damn mind.

Yes that was also my situation. It would be nice to have some signal for power loss, or signal output on the power switch for reading its state of open or closed.

Pyroguy wrote: ↑Thu Nov 26, 2020 7:13 am Yes that was also my situation. It would be nice to have some signal for power loss, or signal output on the power switch for reading its state of open or closed.

Read from an accumulator. If stored power drops below 100%, you're using more power than you're generating. Engage backup power.
It's also a good idea to run backup switches like this on their own dedicated network. All you have to do is overlap some poles without connecting them. It doesn't take many panels & accus to keep combinators going.

And another option (the one I go with) is use a mod like this: https://mods.factorio.com/mod/Circuit_P ... Combinator.
Manually calculate the potential power generation of your primary power array. Use mod to see if power demand is higher than that. Engage backup power.