List Of Figures - Siemens 6ES7 972-4AA02-0XA0 User Manual

User´s Guide Power Rail Booster Version 12/2005

12 List of Figures

Fig. 1: Sample application of the Power Rail Booster ......................................................................... 10
Fig. 2: Setting of DIP switches for controlling the "IS-Master" signal................................................... 13
Fig. 3: Block diagram of a DP master segment with two PRB segments ............................................ 14
Fig. 4: Example of cascading.............................................................................................................. 15
Fig. 5: Example of a point-to-point connection .................................................................................... 15
Fig. 6: Example of line topology .......................................................................................................... 16
Fig. 7: Example of star topology.......................................................................................................... 16
Fig. 8: Example of a closed loop ......................................................................................................... 17
Fig. 9: Example of a double rail section .............................................................................................. 18
Fig. 10: Example of an isolating rail section ........................................................................................ 18
Fig. 11: Maximum rail length depending on the selected transmission speed..................................... 21
Fig. 12: The PRB Checker configuring tool – input screen form.......................................................... 21
Fig. 13: Configuring the network parameters in Step 7´s Hardware Configuration.............................. 23
Fig. 14: Configuring the network parameters in Step 7´s Hardware Configuration.............................. 24
Fig. 15: Preferred arrangement of the contact conductors .................................................................. 25
Fig. 16: Preferred arrangement of the wires in cables......................................................................... 26
Fig. 17: Front view of the Power Rail Booster. .................................................................................... 28
Fig. 18: Installing a PRB on a standard top hat rail ............................................................................. 29
Fig. 19: Overview of interfaces on the Power Rail Booster ................................................................. 30
Fig. 20: Wiring guidelines for the interfaces of the Power Rail Booster ............................................... 30
Fig. 21: Terminal assignment for the Power Rail interface.................................................................. 31
Fig. 22: Terminal assignment for the PROFIBUS RS485 interface ..................................................... 31
Fig. 23: Terminal assignment for the supply voltage interface ............................................................ 32
Fig. 24: Terminal assignment for the signalling contact interface........................................................ 32
Fig. 25: Connection scheme PRB ....................................................................................................... 32
Fig. 26: Measuring the series resistances on individual double sliding contacts ................................. 33
Fig. 27: Measuring the series resistances on both double sliding contacts ......................................... 33
Fig. 28: Possible LED displays and their causes ................................................................................ 34
Fig. 29: Structure of the Diagnostics Message Frame ........................................................................ 35
Fig. 30: Contents of the Diagnostics Message Frame......................................................................... 35
Fig. 31: Possible fault locations in a DP master system with Power Rail Boosters ............................. 36
Fig. 32: Fault location ......................................................................................................................... 36
Fig. 33: Example of a Segment Controller .......................................................................................... 40
Fig. 34: Plant overview ....................................................................................................................... 41
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