Normally it turn on/off one of the outputs (to which in the production system device is connected to adjust a given physical level such as: heater, radiator valve, valve for floor heating in the room, etc. .)
Mara nyingi ni kubadili wa moja ya matokeo (ambayo mfumo wa uzalishaji ni kushikamana na kurekebisha kiwango aliyopewa kimwili kama vile: heater, bomba valve, valve kwa inapokanzwa sakafu katika chumba, nk . .)