Rail mounting device, 4 rail units Intended use Switching of electrical loads with floating contacts Switching of electrically-driven blinds, shutters, awnings and similar hangings Switching of electrothermal drives Polling of conventional switching or push-button contacts, window contacts etc. in KNX systems, for reporting of states, meter levels, operation of loads, etc. Polling of external temperature sensors for heating control Logic functions to control building functions Mounting on DIN rail according to EN60715 in distribution boxes Product characteristics Actuator functions: switching, blinds, electrothermal drives Actuator function can be switched in pairs Integrated push-button interface with 6 inputs 2 integrated room temperature controllers 2inputs for temperature sensors (ref.-no. FF7.8) Outputs can be operated manually, construction site mode Feedback in manual modenormally open or normally closed can be controlled Emergency operation in case of bus voltage failure for summer and winter Protection against jamming valves Forced position Cyclical monitoring of the input signals can be parameterised Heating controller 2internal controllers to control two independent rooms Control for heating or cooling, optionally with additional level On-off, PWM or PI control Predefined heating types (hot water heating, fan coil unit ...) or individual parameters possible Inputs 6inputs for push-buttons Input functions: switching, dimming, blinds control, light scene extension unit, brightness or temperature value transmitter 2inputs for external temperature sensors Logic functions Up to 10logic operations with up to 8inputs each, e.g. for AND, OR and XOR operations Conversion of data point types, e.g. from 1-bit to 8-bit Compara