Binary inputs essentially work in the same way as actuators.
- First create a terminal block (e.g. in the 230V Mains or at the ‘Extra Low Voltage’ – depending on the application, e.g. connection of outdoor motion detectors or window contacts)
- Then create and configure the binary input (e.g. whether a 230V or a potential-free binary input)
- And finally, assign the channels in the terminal block.
Below you can see an example of the “classic” window contact.
For this purpose, we have created a Y(ST)Y terminal block in the low voltage section and a potential-free binary input in our KNX line.
Subsequently, the channels of the binary input can be assigned in the terminal block. For potential-free binary inputs, an additional “+” channel is available.
In the following example, both the window and tamper contact were routed to the terminal block (documented by the wire/terminal designation), with only the former being routed to our binary input.
In the wiring diagram, this is now symbolized as follows:
