I have two particular circuits, and controled by one switch for each. But I would like to use the switch of circuit 1 to control that of circuit 2. i.e. if the switch of circuit 1 is not closed, the switch of circuit 2 is invalid to control that circuit, even pressing it.

Can you help me to solve this problem? thank you very much.

 

can u post your schem

 

hi,

that's what you call interlocking output of a timer. when one is working the other is not and the cycle could be broken when the other is in the process of completing its cycle.