A binary input is a user-supplied pair of dry contacts. Connect a binary input to any of the three control module input terminals and control the output relays in your control system based on whether the binary input’s state is open or closed. Examples of dry contacts include door switches, timers, occupancy sensors, and other switching devices.
A sensor set up as a binary input can be referenced only by a relay output. Analog outputs cannot reference sensors set up as binary inputs.