Data Transmission Systems

1 512 KAT0512-0001a-EPOWERTRANS IbData Transmission SystemsRS 485, DH+1 ContentsFundamentalsRange of application: data Transmission system for mobile data interfaces of the POWERTRANS Ib for conductor bars and terminators of the of componentsPOWERTRANS Ib basic Ib Ib pair of optical bar in a bar without , assembly and starting operationMaximum lengths for conductor configuration of the conductor examples examples ..Standard connection / / LEDs in case of of of requirements for DH+ Interface of of the basic unit and review of conductor of application: data Transmission system for mobile consumersPOWERTRANS Ib Systems are used forConductor bars in High storage warehouses Crane Systems Hoists Transport Systems Hand-operated overhead conveyor Systems Handling systemsSlip ring bodies in Rotary cranes, excavators Water treatment works Amusement rides Manipulators Packing machinesCables for Cable reels Control cables Crane systemsVoltages or currents of the data signals on Bus Systems are often toolow to achieve a reliable and trouble-free data Transmission .

2 Slidingcontact surfaces tend to form oxide layers and may cause short-timeinterruptions in contaminated environments. To achieve low and con-stant contact resistance between contact surfaces and current collec-tor, POWERTRANS Ib increases the power level of the data connection with double current collectors this allows a safe and reli-able data increase of the signal level also produces a strong insensibility toinductive and capacitive interference from neighboring conductors tothe Bus system ( on cable reels, festoons or longer supplies).The transparent data Transmission prevents relevant retardation timesor long-time Transmission Systems with system connection to various automation com-puters with standard interfaces RS 485, RS 422, RS 232 and DH+ arein Stock control computers2 Automation computers (PLC)3 POWERTRANS Ib basic unit4 POWERTRANS Ib interface5 POWERTRANS Ib pair of optical fibers6 wampfler conductor bar7 wampfler terminator / conductor bar8 wampfler double current collector9 Decentralized peripheral unitOperational principleOn POWERTRANS Ib the interface is connected to the compact ba-sic unit by optical fibers.

3 If the existing interface is changed, this presentsthe advantage that only the interface will have to be replaced. More-over the basic unit can be removed from the interface, which is oftenplaced near a PLC signals are electrically disconnected from sending and receiv-ing by means of Opto-coupling unit (basic unit, interface and pair of optical fibers) includes a senderand a sender increases the signal level of the interface signal from unit Ato 70 V (potential-free) for connection to the corresponding trans-mission medium. The receiver of unit B reduces the signal level back tothe appropriate interface units support different serial data forms, such as RS 485, RS 422,RS 232 or DH+.

4 All entries and/or exits are short circuit max. cable lengths use two-wire twisted and shielded cables ac-cording to the specifications of the PLC 9-pole Sub-D or DH+-clamp provides for the coupling of differentinterface general the Transmission rate should be as low as possible, depend-ing on the application. The specific determination of response timesand repeating times during programming of the Bus system by theoperator additionally supports a safe Transmission of ConnectionsPINSub-DRS 485RS 422RS 232DH+1--- data Line 12-Rxd-P-SGND3 Rxd/Txd-PTxd-PTxdData Line 24--+12 V-5 SGNDSGNDSGND-6+U +U --7-Rxd-N--8 Rxd/Txd-NTxd-NRxd-9--- -DH+Sub-D1 DH+ data Line 12 Shield/SGND3 DH+ data Line 2 Connecting sockets3R/T+220 Ohm390 OhmR/T-+GND390 Ohm6385 FundamentalsTypical data interfaces of the POWERTRANS Ib unitTerminators for conductor bars and cablesRS 485RS 232RS 422DH+Terminators help to reduce signal distortions that appear on conductorbars, slip rings and cables.

5 The dimensions of the terminators are de-termined by the corresponding surge impedance of the transmissionmedium and are adjusted to the customer s specific line system. TheWampfler engineers will be pleased to help terminators can be mounted by choice in a plastic case or on acooling body for switchboard POWERTRANS Ib units should be installed as close as possibleto the feeding point of the Transmission length ( conductor bar).For further information regarding assembly and electric connection ofthe POWERTRANS Ib units please see the corresponding mountinginstructions terminators of the bus cable have to be installed according tothe manufacturer s instructions for the installed control.

6 There is nobus resistor on the application of converters ( RS232 on RS485) requires busterminators at the terminators for RS 485, Profibuscable to PLCBus terminators of the bus cable4 FundamentalsTypes of operation half duplex / full duplexThe wampfler data Transmission system is made up of POWERTRANS Ib units, conductor bar Systems ( ) andthe corresponding terminators/conductor bar. POWERTRANS Ib units can be used for both Master and Slaves .Half duplex (2 poles); ProfibusFor extensive central bus controls with many mobile units the complete system must be divided into individual 15 units can be installed on one segment. In the half duplex operation (2 poles) the Master controls the Bus duplex (4-poles) RS 422In the full duplex type of Transmission all units, that are connected to the Bus system, can send or receive at the same requires 4 conductor bar 811, 812 Conductor 811, Master Slaves Half duplex (2-poles) Profibus5 POWERTRANS Registered trade mark by Wampfler AGTerminator/conductor barResistance at conductor bar and/or cables to suppress signal reflections on cablesBitBinary digit.

7 One bit is the smallest unit that is able to contain some meaningful informationBusCommon data Transmission line for the exchange of informationData outData to PLC respectively personal computer (PC) activeData inData from PLC respectively personal computer (PC) activeData interfaceInterchange point between 2 units with standard values for the physical cablesSignal significance and process of the signal exchangeStandard examples: RS 485, RS 422, RS 232, DH+DuplexHalf duplex data Transmission in only one direction (send or receive) on 2 cablesFull duplex Send and receive data Transmission on 4 (2+2) cables in both directions(at the same time)MasterControlling unit within one segmentOpto couplerComponent for the galvanic separation of electric circuitsRecordsDefinition of the data formats and control procedures for the communicationbetween the to point connectionDirect connection between 2 units for the exchange of informationSequentialInterdependent sequence of ordersSlaveControlled unit within one segmentPLCS tored-programmable controlSignal-to-noise ratioDifference between intelligence signal and fault signal levelSub-D-socketStandard plug and socket connectionTransparent transmissionSignals to be transmitted are only increased in their amplitude.

8 With no relevant time delayCentral Bus controlA Master automation unit controls the Bus access ( data exchange process)of the connected Slave automation unitsFundamentalsDefinition = Central unit = Participating unitBus structure: Connecting structures of information processing systemsStar wiringRing wiringBus wiring6acbSystem componentsPOWERTRANS Ib basic unit for interfaces RS 485/422/232, DH+DeliverySupport brackets for front or longside ofProtect. Catalogue-WeightvoltageoperationtypeNo.[ kg]230 V - 50/60 HzHalf duplexIP V - 50/60 HzHalf duplexIP Ib interface for switchboard assembly on support rail TS 35 POWERTRANS Ib pair of optical fibersLengthCatalogue-No.[m] [m]20051222-420030051222-430040051222-44 00 LengthCatalogue-No.

9 [m]50051222-450060051222-460070051222-47 00 LengthCatalogue-No.[m]80051222-480090051 222-4900 Support bracketsSupport bracketsCable spaceData from PLCData to PLCP ower onNo.. Type / Interface to PLCO ptical fibre cables (black) OUTO ptical fibre cables (red) IN24 V AC/DCInterface/SupplyProtectionCatalogue -Dimension [mm] [kg]RS 485051231-22RS 42224 VIP 20On 232AC / DCOn inquiryDH+051231-2011275457 System componentsTerminator/conductor bar in a caseConnectors/conductor bar without caseConnectors/conductor bar without casefor switchboard installationTypeResistance valueCatalogue-Weight[ ]No.[kg].. on cooling valueCatalogue-Weight[ ]No.[kg] // // onmounting plateTypeResistance valueCatalogue-Weight[ ]No.

10 [kg] // // onmounting plateTerminator/conductor bar without casefor switchboard installation on support rail TS 358 System componentsTechnical dataDesignationDimensionsRemarksPossible data interfacesRS 485 (Profibus), RS 422, RS 232, DH+, for support rails TS 35 Transmission ratetyp. KbitUp to Mbit, acc. to the system of thetyp. < 400 m, depending onLonger lengths on inquirysystem segmentsthe Transmission rateData exchangeby 2 poles half duplex operationProjecting for 4 polesFull duplex operation on inquiryDriver No-load voltage 70 V potential-freeConnecting cross mm , shielded Short-circuit to 1 AReceiver Input resistancetyp. 15 k Sensitivitytyp. 4 mABus unit per segmentUp to 15 Opto couplerInsulation 3 kV, 5 mm creep distanceOperating dataBasic unit Supply voltage230 V AC, 10%, 50/60 HzStandard type.