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Landis & Gyr Cashpower Gemini PLC User manual

Manual is about: Cashpower Prepayment Metering, Electricity Prepayment Meters Residential

Summary of Cashpower Gemini PLC

  • Page 1

    C as h p o w e r g e m i n i p l c cashpower prepayment metering cashpower gemini plc user guide . Document version: 0.00 date: 16 august 2011 issued by product management: dave tarr filename: user manual gemini plc (with plc ciu mk3) 16aug2011.Doc © 2011 landis+gyr (pty) ltd electricity prepayment ...

  • Page 2: Revision History

    2/38 released abbreviations © landis+gyr (pty) ltd cashpower gemini plc – user guide revision history version date originator comments 0.0 2011-08-16 dave tarr document release.

  • Page 3: Table Of Contents

    Abbreviations released 3/38 cashpower gemini plc – user guide © landis+gyr (pty) ltd table of contents 1 abbreviations ____________________________________________________________________ 6 2 introduction______________________________________________________________________ 7 3 overview of system op...

  • Page 4

    4/38 released abbreviations © landis+gyr (pty) ltd cashpower gemini plc – user guide 7.5.1.8 initiate dispenser test voucher (meter non-specific voucher) ____________________ 18 7.5.1.9 commissioning voucher (non meter-specific, proprietary voucher) ________________ 20 7.5.1.10 commissioning voucher...

  • Page 5

    Abbreviations released 5/38 cashpower gemini plc – user guide © landis+gyr (pty) ltd 11.4 total units counter (register 003) ________________________________________________ 32 11.5 current 24-hour consumption (register 006) ________________________________________ 32 11.6 previous 24-hour consumpti...

  • Page 6: Abbreviations

    6/38 released abbreviations © landis+gyr (pty) ltd cashpower gemini plc – user guide 1 abbreviations ciu: customer interface unit eeprom: electrically erasable programmable read only memory id: identity kwh: kilowatt hour lcd: liquid crystal display led: light emitting diode plc: power line carrier ...

  • Page 7: Introduction

    Introduction released 7/38 cashpower gemini plc – user guide © landis+gyr (pty) ltd 2 introduction the cashpower gemini plc split meter is a single phase 80 amp split prepayment meter in a british standard housing that uses power line carrier (plc) communication technology between the meter and the ...

  • Page 8

    8/38 released overview of system operation © landis+gyr (pty) ltd cashpower gemini plc – user guide 3 overview of system operation the gemini plc split prepayment meter relies on signalling via the existing power line network to provide communication between the customer interface unit (fitted insid...

  • Page 9: Meter Layout

    Meter layout released 9/38 cashpower gemini plc – user guide © landis+gyr (pty) ltd 4 meter layout because all display and control functionality is at the customer interface unit, there is no local keypad on the gemini plc meter. Figure 4: gemini plc front panel features 4.1 rate of consumption indi...

  • Page 10

    10/38 released meter layout © landis+gyr (pty) ltd cashpower gemini plc – user guide 2 flashes meter error this is a fault condition and requires a service call-out. The load switch will be open. 6 flashes meter not initialised the meter will not accept credit until the appropriate vending keys are ...

  • Page 11

    Customer interface unit layout released 11/38 cashpower gemini plc – user guide © landis+gyr (pty) ltd 5 customer interface unit layout figure 5: plc customer interface unit mk3 5.1 keypad the 12-key keypad enables the entry of vouchers and the accessing of various information functions. Key-presses...

  • Page 12: Customer Interface Unit Lcd

    12/38 released customer interface unit lcd © landis+gyr (pty) ltd cashpower gemini plc – user guide 6 customer interface unit lcd 6.1 lcd layout (what the icons mean) the lcd is designed to give a clear and unambiguous visual indication of important meter functions by means of language-independent p...

  • Page 13

    Customer interface unit lcd released 13/38 cashpower gemini plc – user guide © landis+gyr (pty) ltd 6.3 happy and sad faces these two icons are used in combination to give a quick visual indication of good and bad status. For example, if the meter is operating normally, the happy face will be on. Ho...

  • Page 14

    14/38 released customer interface unit lcd © landis+gyr (pty) ltd cashpower gemini plc – user guide 6.10 plc communication data indicator reliable power line carrier communication is important to overall performance of the gemini plc prepayment system. Due to the variable nature of the medium (noise...

  • Page 15

    Meter operation - prepayment mode released 15/38 cashpower gemini plc – user guide © landis+gyr (pty) ltd 7 meter operation - prepayment mode 7.1 general in this section the features and functionality of the prepayment meter is described in detail while all display and control functionality relates ...

  • Page 16

    16/38 released meter operation - prepayment mode © landis+gyr (pty) ltd cashpower gemini plc – user guide on receipt of the prepayment voucher, the meter processes it and, when complete, submits the result back to the customer interface unit. Depending on the result, the customer interface unit disp...

  • Page 17

    Meter operation - prepayment mode released 17/38 cashpower gemini plc – user guide © landis+gyr (pty) ltd 7.4.2.1 voucher accepted the running ladder pattern on the credit wedge is displayed. 7.4.2.2 voucher accepted as a valid sts key change number (s ts only) note: two vouchers are required for a ...

  • Page 18

    18/38 released meter operation - prepayment mode © landis+gyr (pty) ltd cashpower gemini plc – user guide set current credit levels (meter-specific, proprietary voucher) – 7.5.1.6. Clear credit (meter-specific, proprietary voucher) – 7.5.1.7. Initiate dispenser test (non meter-specific voucher) – 7....

  • Page 19

    Meter operation - prepayment mode released 19/38 cashpower gemini plc – user guide © landis+gyr (pty) ltd these tests pertain to the meter and not the customer interface unit. They will only be visible on meters fitted with a local display. On accepting an initiate dispenser test voucher, the meter ...

  • Page 20

    20/38 released meter operation - prepayment mode © landis+gyr (pty) ltd cashpower gemini plc – user guide 7.5.1.9 commissioning voucher (non meter-specific, proprietary voucher) this is a non-meter-specific voucher i.E. It may be used in any sts meter: 1268 2136 5508 1001 3746 it is typically used t...

  • Page 21

    Meter operation - prepayment mode released 21/38 cashpower gemini plc – user guide © landis+gyr (pty) ltd 7.5.2.2 key change it is generally desirable to „hide‟ a key-change sequence from the customer. To this end, some variable amount of credit is also embedded in the voucher. This is a limited ran...

  • Page 22

    22/38 released meter operation - prepayment mode © landis+gyr (pty) ltd cashpower gemini plc – user guide 7.5.2.10 non meter-specific commissioning voucher this voucher is typically used to ease the meter installation process by ensuring that the load remains disconnected and the tamper detect sensi...

  • Page 23

    Meter operation - prepayment mode released 23/38 cashpower gemini plc – user guide © landis+gyr (pty) ltd if the preset power limit threshold is exceeded, the load switch will open for a period of 30s, after which it will re-close (either automatically or manually – 7.10). If the power limit thresho...

  • Page 24

    24/38 released meter operation - prepayment mode © landis+gyr (pty) ltd cashpower gemini plc – user guide 7.12 optical port the gemini plc prepayment meter is provided with an optical interrogation port that allows meter data to be rapidly and safely extracted in the field using a portable interroga...

  • Page 25: Anti-Tamper Features

    Anti-tamper features released 25/38 cashpower gemini plc – user guide © landis+gyr (pty) ltd 8 anti-tamper features 8.1 general the gemini plc electronic circuitry is mechanically sealed at the time of manufacture by screw sealing plugs. The use of these sealing plugs ensures that there are visible ...

  • Page 26

    26/38 released meter operation (credit metering mode) © landis+gyr (pty) ltd cashpower gemini plc – user guide 9 meter operation (credit metering mode) the credit-metering option is only available when using the sts algorithm. It is possible to toggle the meter between prepayment and credit modes of...

  • Page 27

    Customer interface unit operation released 27/38 cashpower gemini plc – user guide © landis+gyr (pty) ltd 10 customer interface unit operation 10.1 general the customer interface unit effectively acts as a remote display and keypad for the meter. It does not implement any voucher decryption. The cus...

  • Page 28

    28/38 released customer interface unit operation © landis+gyr (pty) ltd cashpower gemini plc – user guide that the correct device is being addressed. This process is known as commissioning the customer interface unit. Commissioning only needs to be done once, typically at the time of installation, a...

  • Page 29

    Customer interface unit operation released 29/38 cashpower gemini plc – user guide © landis+gyr (pty) ltd press the information key continuously for 5 seconds until a second beep is heard. Enter the code 456. The currently commissioned meter number stored in the customer interface memory is displaye...

  • Page 30

    30/38 released customer interface unit operation © landis+gyr (pty) ltd cashpower gemini plc – user guide whenever the customer interface unit is disconnected from the mains supply, it continues to operate for another 30 seconds, at which point it stores the last known meter status before entering i...

  • Page 31: Information Functions

    Information functions released 31/38 cashpower gemini plc – user guide © landis+gyr (pty) ltd 11 information functions pressing the information key toggles the meter into information mode (the information icon on the lcd turns on and all digits display ). The contents of various registers can now be...

  • Page 32

    32/38 released information functions © landis+gyr (pty) ltd cashpower gemini plc – user guide 11.1 meter number (register 000) the meter displays the unique identity number personalised at the time of manufacture. It must match the number printed on the meter‟s front panel label. Nb: this number exc...

  • Page 33

    Information functions released 33/38 cashpower gemini plc – user guide © landis+gyr (pty) ltd 11.11 power limit level (register 014) the meter displays the power level (in either amps or watts) at which the load switch will be opened, causing the supply to the customer to be interrupted. 11.12 exten...

  • Page 34

    34/38 released information functions © landis+gyr (pty) ltd cashpower gemini plc – user guide 11.15 meter (changeable) option register 0 (register 035) the meter displays the functions personalised at the time of manufacture. These functions can be subsequently changed via a voucher: meter (changeab...

  • Page 35

    Information functions released 35/38 cashpower gemini plc – user guide © landis+gyr (pty) ltd 11.22 value of last voucher entered (register 056) the meter displays the value (kwh) of the last ctn entered. 11.23 key revision and key type (register 057) refer to the sts specification 11.24 tariff inde...

  • Page 36

    36/38 released power line carrier communication considerations © landis+gyr (pty) ltd cashpower gemini plc – user guide 12 power line carrier communication considerations the ac mains supply is subject to many forms of interference and attenuation that can affect the performance of plc communication...

  • Page 37: Remote Access

    Remote access released 37/38 cashpower gemini plc – user guide © landis+gyr (pty) ltd 13 remote access the meter may be remotely accessed via other devices using the same plc communication channel as the customer interface unit e.G. For interfacing to an automatic meter reading system. These communi...

  • Page 38: Safety

    38/38 released safety © landis+gyr (pty) ltd cashpower gemini plc – user guide 14 safety the meter does not constitute a safety risk whilst the meter cover is in place and the seals unbroken. The communications interface is galvanically isolated from the mains supply (isolation specification is in e...