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Basic Dupline Basic Dupline ® Jens Neigaard1 Basic.

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Presentation on theme: "Basic Dupline Basic Dupline ® Jens Neigaard1 Basic."— Presentation transcript:

1 Basic Dupline Basic Dupline ® Jens Neigaard1 Basic

2 Basic Dupline Basic Dupline ® Jens Neigaard2 Typical Automation System Controller PLC / PC Field Devices Sensors, Switches, Valves, Contactors, Drives etc. Traditional Installation Dupline (or other Fieldbus) Installation

3 Basic Dupline Basic Dupline ® Jens Neigaard3 General Fieldbus Advantages Reduced Installation Cost Reduced Installation Cost Reduced Cable Cost Reduced Cable Cost Reduction in maintenance cost Reduction in maintenance cost Increased flexibility Increased flexibility Capacity for more signals Capacity for more signals

4 Basic Dupline Basic Dupline ® Jens Neigaard4 Signal Common Basic components: The twisted pair

5 Basic Dupline Basic Dupline ® Jens Neigaard5 Basic Components: The Channel Generator

6 Basic Dupline Basic Dupline ® Jens Neigaard6 Basic Components: The Transmitter

7 Basic Dupline Basic Dupline ® Jens Neigaard7 Basic Components: The Receiver

8 Basic Dupline Basic Dupline ® Jens Neigaard8 I/O Addresses: A1, A2, A3.. A8, B1, B2.. P7, P8 Groups: A... P Channels: Dupline Addressing Scheme

9 Basic Dupline Basic Dupline ® Jens Neigaard9 Dupline Address Coding Device: GAP1605

10 Basic Dupline Basic Dupline ® Jens Neigaard10 A1 A2 A3 A4 A1A2A4A4 A3A3 A3A3 Channel Generator A1A2A4A4 FMK 8 Dupline used for wire replacement

11 Basic Dupline Basic Dupline ® Jens Neigaard11 Transmitter Channel Generator ReceiverTransmitter 64 A1A5A5 A5A5 A5A5 A5A5 n-Remote Transmitters have Effect on One Central Receiver

12 Basic Dupline Basic Dupline ® Jens Neigaard12 Receiver Channel Generator TransmitterReceiver 64 A1A5A5 A5A5 A5A5 A5A5 A Central Transmitter has Effect on n-Remote Receivers

13 Basic Dupline Basic Dupline ® Jens Neigaard13 Dupline Carlo Gavazzi Dupline Carlo Gavazzi Dupline Standard Housings

14 Basic Dupline Basic Dupline ® Jens Neigaard14 Different input Types Contact /NPN Transistor Contact /NPN Transistor Voltage Voltage Different output Types Relay Relay NPN Transistor NPN Transistor PNP Transistor PNP Transistor Different number of I/O’s H-Housings, D-Housings and Open PCB Different supply voltages Dupline Digital I/O-modules

15 Basic Dupline Basic Dupline ® Jens Neigaard15 A ModeEnter Dupline Test Unit GTU 8 Select Channel- Group Display of Channel- Status’ MODE: DIGITAL 1 GROUP Force Channels to ON (monostable) 7 Monitoring of Channel Status’ in a Selected Channel Group Dupline Test Unit: GTU8

16 Basic Dupline Basic Dupline ® Jens Neigaard16 Dupline has free Topology

17 Basic Dupline Basic Dupline ® Jens Neigaard17 Single (twisted) pair of wires Single (twisted) pair of wires Shield not required Shield not required Recommended min. cross sections Recommended min. cross sections Long distance: 1.5mm 2 Long distance: 1.5mm 2 Medium distance: mm 2 Medium distance: mm 2 Short distance: 0.35 mm 2 Short distance: 0.35 mm 2 Low capacitance for long distances Low capacitance for long distances (preferably < 80 nF/km) (preferably < 80 nF/km) Dupline Cables

18 Basic Dupline Basic Dupline ® Jens Neigaard18 Never connect Dupline Common Never connect Dupline Common to Ground to Ground Treat the Dupline cable as a signal wire Treat the Dupline cable as a signal wire Use DT01 termination unit for Use DT01 termination unit for distances > 1.5 km distances > 1.5 km Check correct wiring during Check correct wiring during installation installation Dupline Installation

19 Basic Dupline Basic Dupline ® Jens Neigaard19 Use soldering splices Use soldering splices Splices must be water tight Splices must be water tight No leakage or connection between wires or No leakage or connection between wires or from wires to ground from wires to ground Cable Splicing / Isolation

20 Basic Dupline Basic Dupline ® Jens Neigaard20 Rules for Dupline-powered Devices a)The total current consumption must not exceed max current output of the channel-generator: G :Max. 70 mA G :Max. 130 mA b) The total current consumption in the network multiplied by the cable loop resistance must not exceed 2 V An example: 2 km 1.0 sq.mm twisted pair is used. G is used both with input and LED The resistance of a 1.0 sq.mm. core is app. 20 Ohms/km. With a wire length of 2 km the resistance per wire is 40 Ohms With the 2 Dupline wires the total resistance is 2 x 40 ohms = 80 Ohms. This means that the max total current is 2 V / 80 Ohms = 25 mA. One G with LED function uses 1.2 mA Max Number of G = 25 mA / 1.2 mA = 20 units If the LED is not used the current per G is only 0.15 mA so in this case the result is: Max number of G 's = 25 mA / 0.15 mA = 166 units.


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