How did control.lua and /c interact with circuit network?

[meifray]

For example,when I change signal output from a constant combinator using /c , did other decider combinator change value accordingly in that command execution? if I make a long lua code to output circuit state change,is it observable?

and what is proper way to make a custom combinator?
is there any documentation of forum post that can give me such information?

If there's none, I guess I will try to do such research in lua and post result later :\

[eugenekay]

Circuit changes should be visible on the next “Tick”. You can use the Time controls in Editor Mode to inspect Circuit behavior step-by-step.

You can look at other Mods like Logistic Group Combinator as a good Example.

Good luck!