Fieldbuses - Elevator
Carlo Gavazzi's Dupline® 3-wire bus makes elevator control systems simpler and more effective than traditional systems. Space and cost saving I/O boards with 2 inputs and outputs are mounted in each floor fixture and connected to the push button and lights. In the elevator car, where the number of signals is higher, boards with multiple I/Os are used. All the I/O boards are connected to the same cable, which provides 24VDC power for lights and floor indicators and also serial communication connection with the Dupline® master module.