Dupline Elevator Bus Jens Neigaard

Dupline 3-wire bus for Elevators The signals and power For all the pushbutton Panels and Position Indicators run on the Same 3 wires Jens Neigaard

Used for the pushbuttons and lamps at the landing stations I/O-board with 2 inputs and 2 outputs Used for the pushbuttons and lamps at the landing stations Small dimension for easy integration in fixtures 2 contact inputs with built-in pulse prolongation that ensures that even short button activations are captured by the PLC 2 PNP transistor outputs for driving the lamps Jens Neigaard

Used for the pushbuttons and lamps in the car I/O-boards with 8 inputs, 8 outputs or 4 In / 4 Out Used for the pushbuttons and lamps in the car Built-in pulse prolongation ensures that even short button activations are captured by the PLC 8 output board is used for control of the position indicators Jens Neigaard

Channel Generator Function The Master Module Channel Generator Function Serial Interface for the PLC to exchange Dupline I/O-data Synchronizes the Power Supply on the 3’rd wire with the Dupline signalling Jens Neigaard

Interfacing Options The Master Modules read And write directly into the PLC memory Jens Neigaard

Total Current on the 3’rd wire < 3.5 A Rule no. 2 Max Power Load Rule no. 1 Total Current on the 3’rd wire < 3.5 A Rule no. 2 Total Current x Resistance in Common Wire < 3.5 V Jens Neigaard

What is the max current on 100m 1.5 sq.mm. Cable ? Max Power Load Example What is the max current on 100m 1.5 sq.mm. Cable ? 100m of 1.5 sq.mm. Cable has a resistance of app. 1.3 Ohms Max current load = 3.5V / 1.3 Ohms = 2.7A Jens Neigaard

How to increase max current ? Max Power Load How to increase max current ? Install an additional Power Supply and a Dupline Power Supply Coupler in the other end of the cable This increases the max current with a factor of 4, because each power supply supplies half the current in half the wire length Jens Neigaard

Do not connect Dupline Common to Ground Installation Rules Do not connect Dupline Common to Ground Jens Neigaard

Dupline Elevator Bus- Features Easy to use Robust and reliable Easy to interface to PLC’s Flexible Cost-effective Jens Neigaard

Dupline Elevator Bus- Benefits Reduced installation time (up to 80-90 %) Reduced cable cost One-size-fits-all control panel If a PLC is used, the cost of the Dupline modules is to some extend compensated by the savings on PLC I/O expansion modules and cable Jens Neigaard

Our customers until now Typically middle-sized independent elevator companies without own electronics R&D Companies using PLC for controls Jens Neigaard

Our competitors - And their problems The big companies, making complete elevators or elevator controls systems, have developed their own solutions based on CAN or LON - And their problems CAN and LON are too expensive solutions especially for the small elevators CAN and LON er complex bus systems that seem to be overkill for the simple elevators The big companies are looking for a Cost- effective bus solution for the pushbutton panels and position indicators Jens Neigaard

The trend Elevator control systems without bus solution are to a higher and higher extend considered as old-fashioned The future Dupline combined with CAN, LON or Ethernet as upper level bus could be an opportunity to work with the big companies Jens Neigaard