Hello, and please help me to solve the problem of automatic switching on and off the external roll-down shutters depending on the time of day. I need an automatic twilight or similar system which would lower the roller-blinds in the whole house at night (there are 16 of them) using a NO contact which should hold for approx. 1 minute (this is the time of lowering the roller-blinds), after which the contact should disconnect. The problem is that at daybreak the second NO contact is to be switched on and should also hold for about 1 minute (this is the time for raising the shutters) and should also switch off after this minute. The whole system for lowering and raising the roll-down shutters is made up of relays. One part of the relays raises the roller shutters and the other part lowers the roller shutters and if any of the contacts were in the active state, there is no way to activate the opposite option. Thank you in advance for your advice.