The 4-fold pushbutton/binary adapter is fitted with 4 input contacts that can be addressed individually. The input contacts can be used optionally for external pushbuttons or external binary contacts. he operating mode is set at the pushbutton/binary adapter via a DIP switch. In the pushbutton adapter function, it is possible to evaluate conventional pushbuttons; in the binary adapter function, it is possible to evaluate permanent contacts from e. g. timers.
Up to 4 pushbutton/binary adapters can be connected to one 70 784 control module, whereby 2 pushbutton/binary adapters can be set in the function as pushbutton adapters and 2 pushbutton/binary adapters in the function as binary adapters.