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PR_smart_Part1_GenReq SMART METERING SYSTEMS

1. reads for objection Notification window received closure and for schedule 2 x SED read s Objection Window Check MDUS for Closes today s read System recognises which Device s are leaving and sends Read appropriate message No available Poll relevant meter s Poll relevant meter s for read for read Produce out of cycle bill No Utilise MR history to Relevant interpolate read read s available Yes Check MDUS for final Supply End Date read reached Read y Y ne available TE Poll relevant meter s Poll relevant meter s for read for read Bo tries fail Utilise MR history to Me et To provide read interpolate read p Y times z m gt Produce final bill Store final reads and Yes read reason for future reference ee T Send data dump message to applicable devices Data request to load current data to Central Data request to load current data to Central Comms Comms Data request to load current data to Central Comms Current data loads to Central Comms relevant table Update MDUS with final meter set up and reads for future reference I Device componeni s in Initiate closure of customer accounts Send clear down i Removal of any sensitive data and re set to manufacturers settings
2. 31 20 2 OAM Ie aee ee ee ane a nee ea ee eee Dane ee one 31 20 3 All processes shall be able to be carried out without a HAT by authorised personnel 32 20 4 Hand Held Terminal HI 32 20 5 DECOMMISSIONING ecciecccce cesses 33 20 6 Firmware Upgrade wakes EENS EEN ERRE 34 MEME iU m E 34 eT AENEA DE 34 AP EN Cs E EN E EE E AE EE 34 P EM EE 35 23 MAINTENANCE AND RELIABILITY eeneg EEN 36 PA DPOCUMENTATION WE 36 24 1 Technical and functional specification documentation 36 24 2 CONMIQUTALION InfortfdtiOf EEN 37 SC SC On CC Le ed le ae deu tube eee S a ane vete utu iUe a en ne 37 24 4 Commissioning documentation sise 38 24 5 User operating manual 38 25 PACKAGING AND STORAGE eieiei eg e edee gue eege eege dea 38 APPENDIX A R F RENCES T 40 A 1 British European and Global Standards 40 A 2 Si KE le EE 42 A 3 Council and European Parliament nnn0000nnnnnnnonneannennnossnnnnnnnnnrnnnrnrrenssnnnrnrrersennnrenreennne 43 A 4 Institution of Gas Engineers and Managers publcatons 43 A 5 WE EME EE 44 A 6 aleae m 44 A 7 Ae EN Ee E E 44 A 8 STAMOS ceca feo E 44 APPENDIX B DETAILED ES TOP EVENT eC 50 B 1 COMMISSION a mm 50
3. 5 1 5 5 1 6 5 2 5 2 1 5 2 2 5 3 5 3 1 With regard to the Batteries Directive the manufacturer shall pay particular attention when importing batteries and shall advise of its obligations The manufacturer shall provide Declarations of Conformity that components meet the requirements of the relevant Directives The manufacturer should provide evidence supporting their Declarations of Conformity in the form of test certificates from approved Notified Bodies and technical construction files All components where applicable shall display the CE mark SAFETY General requirements Components and where applicable modules see section 6 4 shall be designed so as not to present a hazard to any person including the installer and the consumer There shall be no sharp edges points or gaps that may cause injury during installation maintenance module exchange where applicable or normal day to day operation by the consumer All components shall have all electrical parts and terminal connectors e g power supply terminals plugs and sockets etc inaccessible and or insulated and protected such as to prevent inadvertent contact by the installer or consumer Electricity meters shall be manufactured to conform to protective class Il as defined in BS EN 50470 Where a consumer s supply gas or electric has been interrupted for any reason any faults within the smart metering system shall not cause the restoration of the supp
4. 6 1 12 The smart metering system shall include the ability to interact with the consumer via an in home display 6 1 13 The smart metering system shall include both credit and pre payment PAYG functionalities see section Error Reference source not found 6 1 14 Meters shall incorporate a mechanism by which the following outcomes can be obtained a Interrupt the supply to the consumer b Load limit the supply into the consumer electric only in both pre payment PAYG and credit modes C Switch mode between credit and pre payment PAYG also see section 10 d Take no action 6 2 System energy usage 6 2 1 All components of the smart metering system shall be designed so as to minimise their energy usage and as a minimum the combined energy usage of components powered by the mains supply shall meet the requirements of BS EN 50470 3 2006 6 3 Marking Identification and serial numbers 6 3 1 All components of a smart metering system shall be uniquely identifiable both electronically and mechanically This shall be achieved by a Affixing a label or marking plate to the component showing 1 An indelible unique serial number 2 In the case where modular construction is employed see clause 6 4 a means to identify individual modules 3 Year of Manufacture b Affixing a label or marking plate to the component showing an indelible unique bar code that includes the component serial number and Smart Meter Variant Code whi
5. BS 6400 1 BS 7856 BS 8499 2009 BS EN 14236 BS EN 50360 BS EN 50371 BS EN 50470 BS EN 55022 BS EN 60079 10 1 40 Test gases Test pressures Appliance categories Specification for gas meter unions and adaptors Gas meters diaphragm gas meters Specification for installation exchange relocation and removal of gas meters with a maximum capacity not exceeding 6 m h Part 1 Low pressure Di family gases Code of practice for Design of alternating current watthour meters for active energy classes 1 and 2 Specification for domestic gas meter boxes and meter bracket Ultrasonic domestic gas meters Product Standard to demonstrate the Compliance of Mobile Phones with the Basic Restrictions related to Human Exposure to Electromagnetic Fields Generic Standard to demonstrate the compliance of low power electronic and electrical apparatus with the basic restrictions related to human exposure to electromagnetic fields Electricity metering equipment a c Part 1 General requirements tests and test conditions Metering equipment class indexes A B and C Part 2 Particular requirements Electromechanical meters for active energy class indexes A and B Part 3 Particular requirements Static meters for active energy class indexes A B and C Limits and methods of measurement of radio interference characteristics of information technology equipment Electrical apparatus for explosi
6. i Removal of any sensitive data and re set to manufacturers settings Removal of any sensitive data and re set to manufacturers settings Re configure the trusted phone numbers security settings Acknowledge sent to Gaining supplier Remove comms channel for relevant Device s mesage Finalise closure of customer s account s 61 PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 APPENDIXD SECURITY OF THE HAND HELD TERMINAL HHT The main body of the document includes the possibility of using an Hand Held Terminal HHT to facilitate the commissioning process The following requirements to ensure the security of the HHT and thus the commissioning process and the smart metering system have been captured during the course of the Phase 3 meter specification and are included below for completeness and subsequent hand over to the BGSE team to deliver D 1 Security of Hand Held Terminal HHT D 1 1 D 1 2 D 1 3 D 1 4 D 1 5 D 1 6 D17 D 1 8 D 1 9 The installation and commissioning of a smart metering system shall require the use of HHT as described in section 20 3 Such equipment shall be made secure to avoid its use by unauthorised personnel Prior to use the smart metering system shall employ a mechanism whereby the HHT shall be verified and failing such verification the HHT shall not be capable of intera
7. Electromagnetic compatibility pulsed magnetic field immunity test Electromagnetic compatibility Testing and measurement techniques Voltage fluctuation immunity test Electromagnetic compatibility Testing and measurement techniques Variation of power frequency immunity test Alternating current static watt hour meters for active energy classes 1 and 2 Electricity metering Data exchange for meter reading tariff and load control Part 21 Direct local data exchange Quality systems model for quality assurance in design development production installation and servicing 41 PR SMART PART GENREQ FINAL V4 0 2010 03 29 BS EN ISO 9002 BS ISO IEC 90003 BS 6400 BS 7856 IEEE 802 15 4 IEEE 1149 1 A 2 ETSI Standards EN 300 328 EN 301 511 EN 301 489 01 EN 301 489 07 42 Quality systems model for quality assurance in production installation and servicing Software engineering Guidelines for the application of ISO 9001 2000 to computer software Installation of domestic sized gas meters Code of practice for Design of alternating current watthour meters for active energy classes 1 and 2 IEEE Standard for Information Technology Part 15 4 Wireless MAC and PHY Specifications for Low Rate Wireless Personal Area Networks WPANSs Standard Test Access Port and Boundary Scan Architecture Electromagnetic compatibility and Radio spectrum Matters ERM Wideband transmission s
8. e WEEE Waste Electrical and Electronic Equipment 2003 108 EC amending 2002 96 EC f RoHS The Restriction of Hazardous Substances Directive 2002 95 EC g R amp TTE Radio equipment and telecommunications terminal equipment and the mutual recognition of their conformity 1999 5 EC h 2008 103 EC amending Directive 2006 66 EC on batteries and accumulators and waste batteries and accumulators as regards placing batteries and accumulators on the market The Batteries Directive i Packaging and Packaging Waste Directive 94 62 EC j AS NZS 4665 Minimum Energy Performance Standard MEPS Performance of External Power Supplies Note 1 Directives and their scope are in a continual state of flux the above list is believed to be relevant at the time of writing but may change It is an obligation on the manufacturer to comply with all relevant directives and inform British Gas if they believe the above list is incomplete The manufacturer shall not incorporate hazardous substances as in the meaning of the RoHS Directive in the construction of components and there shall be no emissions of any toxic hazards in normal use Note Irrespective of whether equipment may or may not be required to meet the RoHS Directive British Gas takes the view that equipment ought not to incorporate hazardous substances in its construction PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 4 3 4 4 4 5 4 6 5 1 5 1 1 5 1 2 5 1 3 5 1 4
9. m n o p q r s t u v w x y z aa PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 Credit remaining credit low credit thresholds emergency credit values Recovery rate of debt see clause 13 29 Interrupt Status Non interrupt periods see clause13 33 Emergency credit see clause13 9 Load management electricity only see Part 3 Electricity meters 16 Load Management Reading scheduling push Mode of operation see section 10 Currency conversion pounds Sterling to Euros and vice versa both the conversion rate and date and time to update to be configurable Send system status information to the head end including 1 Alerts information see section 18 2 Configuration information 3 Signal quality information both long and short range as applicable Data transmission times Data transmission intervals Data recording intervals Configuration of alarms Consumer data e g MPRN MPAN Component data e g serial number and MAC address Install code Supplier information Conversion factors CO2 CV and PTZ conversion factor Following any configuration changes a message shall be generated and stored locally and should be sent to the head end if configured to do so Any such messages shall be configurable as requiring ad hoc or scheduled acknowledgments to the head end system It shall be possible to keep the smart metering system s data and configuration
10. Tariffs loaded into core systems Tariff messages sent Ea Message s transferred Re tries on failure EFD Daily Future date Retry Y Store tariff messages with Yes future EFD Ack data Ack data 54 Re tri Message s transferred es on failure to metering system Yes forward Rec d Read data Update read data to appropriate tables Tarif f ack Update tariff and read data to appropriate tables PR SMART PART GENREQ FINAL V4 0 2010 03 29 C 3 Billing Process Map Billing window opens period to be configurable Go to MDUS to check for read available on billing date MDUS to check back x days for suitable read Report to SAP for no read available Poll gas meter for current read current read Re tries on failure essage s transferred Re tries on failure Poll gas meter for current read essage s transferred Poll electricity meter for Rees on failure current read MDUS to look for the most recent available Read read and produce available estimate up to the d required billing date Read loaded to MDUS tables available Read sent to SAP for validation essage s transferred Re tries on failur Poll electricity meter for essage s t
11. of symbols or text in English All operations should avoid the use of a Multi level menus of more than two levels b Multiple button pushes in various combinations All operations should be easy to undertake such that an installer can describe the functionality to all types of consumer No component shall interfere with or impede the operation of any other component or meter specific tasks e g the reading of a meter index Components of the Smart Metering System shall be designed to facilitate swift battery changes which should be completed within five minutes 9 9 1 9 2 9 3 9 4 9 5 PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 OVERALL SYSTEM ARCHITECTURE IHD Two way local comms Elec wo way remote comms Hub for local amp remote comms Head end systems WAN Communications C Figure 1 System architectures The system architecture shall allow remote two way communications from head end systems to the local system through the WAN via a local comms hub This comms hub combines local and remote communicating technology This system may also include an IHD that may communicate with each meter and or the comms hub Such local communications are via a Home Area Network HAN The system shall support multiple gas and electricity meters up to 4 supply meters and shall also support a single fuel meter configurations In the scenario where there are multiple meters
12. such as knowledge experience independence and resources to conduct conformity assessments to European Standards of components National Measurement Office formerly National Weights and Measures Laboratory Pressure of gas 47 PR SMART PART GENREQ FINAL V4 0 2010 03 29 Pairing PAYG PIN PLC P max Pre payment PAYG Pressure absorption PRNG Protective class II PTZ conversion Qmax Qnin RAM Re pairing 48 Means by which the local components of a smart metering system agree to communicate with each other and establish a connection Typically this is achieved by exchanging a passkey between the components The passkey is a code shared by the components which proves that they have agreed to pair with one other Other components that may attempt interfering communications are prevented from so doing because they will not have the passkey and thus cannot pair Pay As You Go Variation of pre payment PAYG but possibly having different rules applied to the interruption and restoration of the supply In the case of gas CV and a PTZ conversion factor is taken into consideration Personal Identification Number Power Line Carrier Maximum working pressure System whereby a consumer pays for energy before it is supplied Rules are applied to the interruption and restoration of the supply In the case of gas CV and a PTZ conversion factor is taken into consideration The difference between the p
13. the smart meter system shall be resistant to other components interfering with the correct pairing process Irrespective of 20 2 1 it shall be possible to leave all parts of the smart metering system fully operational l e not in commissioning mode by a single installer This requires the meters comms hub and IHD to be installed tested and commissioned and all relevant data communicated updated and synchronised between the head end and the local smart metering system This data shall include but is not limited to a Unique identifiers e g serial numbers MAC address IP address MPRN MPAN etc b Meter readings held in all registers C Mode for each meter i e pre payment PAYG or credit d All configuration details of all smart metering components e HAN and WAN signal strength f Tariff information 1 Tariff structure 2 Rates g Debt recovery and other financial information h Billing time synchronisation Note An example is if the billing system is at day 49 in the billing period then any credit smart meter would also be set to day 49 31 PR SMART PART GENREQ FINAL V4 0 2010 03 29 20 2 5 20 2 6 20 2 7 20 2 8 20 2 9 20 3 20 4 20 4 1 2192 During the installation procedure messages shall be displayed on appropriate components to indicate how far the procedure has advanced The manufacturer shall provide details of approximate times to complete each stage of the procedure Note T
14. 1 1 and section 17 1 In the case of metrology the method of construction shall form part of the acceptance testing of the component by a Notified Body also see clauses 4 4 and 4 5 If any conditions are imposed by the manufacturer by virtue of the modular construction these shall be agreed in writing with British Gas All modular components of meters or of Metering Systems should be suitably protected from interference or tamper Wherever relevant this means protected by the meter seals Therefore the use of slots flaps or hatches that could compromise the physical or electrical integrity of the module or the meter itself is not acceptable without an appropriate sealing mechanism Modules shall be capable of replacement without requiring interruption to the supply of energy and in the case of gas meters in a zone 2 ATEX category 3 hazardous area as defined in BS EN 60079 10 1 Where modular construction is used it shall be clearly identifiable as such by the use of a modified serial number and model name see clause 6 3 1 Any diagnostic information within a component s alerts or logs derived from the operation of an individual module shall include information that identifies the individual module see 18 3 ENVIRONMENT Contaminants The surface finish of all smart metering components shall resist dirt chemical effects and ultraviolet light which may occur in a typical domestic environment and be easy to clean using non abrasive h
15. 22 16 22 1 16 22 2 16 22 3 PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 ELSE Be ES Be DENN ee ee SUN T1 kWh e g 10kWh T2 T3 T4 T5 T6 T7 T8 Figure 4 Illustration of rate and tier combination cumulative register Rate registers TOU mappings and Tier rules shall be configurable locally or remotely by authorised personnel Tier and Rate register cumulative rate registers and total consumption shall be extractable to head end systems on command The meters shall be capable of supporting a standing charge with an associated configurable period e g daily weekly etc and an associated recovery frequency for pre pay e g daily weekly etc The meter display shall clearly identify which unit rate price is currently active as a financial value For gas the metering system shall use an indicative calorific value and an indicative volume conversion value to calculate energy values in kWh in order to provide an experience consistent with electricity and as a basis for calculating the monetary value see clause 13 2 Meters shall display currency value using the correct currency symbol or Meters shall be capable of resolving block tariffs over a configurable period the minimum period being one day for both gas and electricity Meters shall synchronise tariff and consumption data with the IHD at a move to a next price given a tier threshold or time of use switch and or 30 minutes for the gas meter CPP s
16. 7 Acts of Parliament The Disability Discrimination Act DDA 1995 A 8 Definitions The definitions applying to this document are given below see clause 3 1 Description Definition for the purposes of these Recommendations Shall ndicates a clause or requirement is mandatory without deviation Should Indicates a clause or requirement is the preferred option However an alternative option may be offered if it can be shown that it offers the same or enhanced performance to that specified in the clause or requirement Alert A Collective term relating to the detection of events and the sending of warning messages relating to them Events shall be due to faults tampers and exceptions APN Access Point Name The name used to identify the type of service that is provided in the packet data connection in GPRS in the GSM mobile network Authorised Any system or person who has been authorised by British Gas to carry out Personnel an activity on the metering system Back up battery Secondary source of electrical power operating over the short term for all component parts of the smart metering system Note Although the term battery is used there are other technologies that may also be suitable for this purpose e g super caps 44 Base conditions Block Tariff BST Component As in component of a smart metering system CLI CMO CoP CPP CPS CSA Consumer Consumer s supply CV DDoS e Wa
17. B 2 S o r li e T 50 B 3 SOI AS IE AU A ege EE 50 B 4 AS e DUO UL 50 B 5 EE 51 B 6 Bug cc 51 B 7 CO UG A ONS NR TT mU 52 B 8 Wsqem E 52 B 9 DecomMmmMiSSIoOning MP nen 52 BIO DCOU c 52 ENK DNOS G RR 52 APPENDIX C PROCESS FLOW DIAGRAMS wiiszcsissidsocessssecndcostsavenecedsavaheencdassaasenoehussareacdosssumeeesasesiesacodbans 53 1s PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 C 1 Installation amp Commissioning Process Map 53 C 2 Update Tariff Rate Process Map ss 54 C 3 BIG OCS SS MaN EE 55 C 4 Critical Peak Pricing Process E e eee 56 C 5 Load E IML OC Ee BEE 57 C 6 Homemove Move out 58 C 7 Homemove MOVe n EEN 59 C 8 OR a 60 C 9 AVS EE 61 APPENDIX D SECURITY OF THE HAND HELD TERMINAL HHT cccccceccceesceessceesseeeeseenseeeeseeeeseues 62 D 1 Security of Hand Held Terminal HHT 62 D 2 Handheld Terminal Engineer codes Usernames and Passwords 62 APPENDIX E PASSWORDS 63 ADLET Cw 64 PR SMART PART GENREQ FINAL V4 0 2010 03 29 PRODUCT REQUIREMENTS FOR SMART METERING SYSTEMS PART 1 GENERAL SYSTEM ARCHITECTURE INTRODUCTION This document describes the Br
18. Customers identified for or sign up to CPP CPP pricing structure sent to metering system tables CPP pricing structure ready to be selected Business identifies the need to apply CPP tariff Core system updated with CPP ON marker flag Business identifies that PP tariff can be turned off Read at time of switch applied to read table s Core system updated with CPP OFF marker flag PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 C 5 Load Limiting Process Map Customer contact to sign up for Load Limiting proposition Customer identified for Load Limiting proposition System performs basic validation e g vulnerable cust etc Validation fails Validation Customer informed of passed reasons why load limiting is not appropriate Tariff threshold EFD ETD and switching System applies times loaded to meter maximum level of load limit times to switch limiting on off and threshold for alerts limiting EFD today Appropriate tariff and threshold sent to Electricity meter Message s transferred Yes Re tries on failure Message to IHD to display Load Limiting ION with threshold time and date information Switch load limiting on Ack sent that load limiting is ON Ack sent that load limiting is ON Ack received to state load
19. V4 0 2010 03 29 19 19 1 19 1 1 19 1 2 19 1 3 19 1 4 19 1 5 19 1 6 19 1 7 19 1 8 19 1 9 19 1 10 19 1 11 30 DATA COMMUNICATIONS General All parts of the smart metering system shall incorporate appropriate methods of communicating data These may be categorised as follows a Long range two way communications with the head end systems designated as WAN Wide Area Network b Short range two way communications between local components e g meters and comms hub and or meters and IHD etc designated as HAN Home Area Network C Short range two way communications between components and the HHT All communications shall continue to be fully functional irrespective of the mode of operation of meters see section 10 All configuration retrieval and removal of data from all components shall be capable of being carried out by authorised personnel remotely and locally All communications shall be secure see section 17 2 It shall be possible to increase the range of both WAN and HAN Provision should be made for external antennas and or signal boosters repeaters Connections to such components should be simple and tamper resistant Note This provision applies to both the HAN and the WAN External antennas may improve reception of mobile phone network signals where for example the meter is located in a cellar The use of signal boosters repeaters may similarly improve communications bet
20. credit purchased and tariff settings Meters shall accept a manual application of an encrypted one time credit locally from a consumer or authorised personnel in instances where payments have not reached the meter Such an application of credit shall be logged by the meter It shall be possible to apply and remove credits to meters remotely in addition to emergency credit as described in clause 13 9 Such an application and removal of credit shall be logged by the meter Note This may include friendly credit over and above emergency credit ad hoc discretionary credit an alternative to clause 13 17 as a method of amending a failure to record the input of a credit etc Removal of credits may be required to correct the mistaken addition of credit The meter system shall be able to accept credit sent to a specific meter from the head end System This credit shall be added to the credit balance on the meter instantaneously Note This is a result of the scenario detailed in 13 7 Meters shall validate all applications of credit locally and remotely to prevent the application of a single credit transaction more than once It shall be possible to apply debits to a meter at any time such that debt recovery can take place Debt can be applied during commissioning of the metering system There shall be 3 types of debt recovery rates that can be independently configurable and shall be applicable to the consumer s credit balance does not app
21. gtag 11 I0 MODES OF OPERATION aa dd a ecran a a De et nca 12 11 INTERRUPT AND RESTORE CAPABIUTY cveccssiescccnscanvshoutiosnboasiadvostunvsescetassabasdueneddvceoadsusieveteatinavvestonves 14 12 FUNCTIONALITY AND CONFIGURATION ccccccccccccesssssceececccsseeessseeseccssseeeeasseeesecesssuaaaseeeeeess 14 12 7 Configurable meierrules eene nnne nenne nnn nnn nnns nnn ann nns 16 t UL coda moi lc 17 14 CREDIT METER RAYMENTS nennen een nnnnnna ahhh ness s ssa sa ann en nere sss sasa aane seres sss asas 20 15 EE EE crm n 21 16 TARIFFS AND PRIONG nennen nenne nnnm nennen nnn nensi sss si saa n nnne esse sas asa n nne n naar nnns 22 16 11 Critical Peak Pricing CPP electricity only 22 1612 AG X 1 TMOG OF USC m 23 RE E EE E E A E E E EE E E E A E E 24 O E O FANS e E a dense de de Cm ti 25 Ye SEC URTI GE 26 17 1 Mechanical anti tamper measures 26 Te PAA CCUM RE 26 PR SMART PART GENREQ FINAL V4 0 2010 03 29 18 EVENTS EXCEPTIONS ALERTS FAULTS AND TAMPERS sannoossnnnesssssnnsssssserssssserresssreressssreresssseeres 28 Ce E Re e El UL CN HE EE 30 DSSEEC O a ea a nan 30 19 2 Communications to Hand Held Terminal HHT ccccccceseeseesseeeeeeeeeeseeeeeeeeeeeseaaaaeees 31 20 INSTALLATION COMMISSIONING AND DECOMMISSIONING nr 31 20 1 All components of the smart metering system shall be capable of being installed bound unbound commissioned and decommissioned without the use of a HHT
22. limiting on IHD displays message to confirm that customer can change warning threshold and give details of how Prompt message to remind customer that they can change their settings Re tries on failure CRM re aligns details and or controls in accordance with customer request New threshold details loaded onto meter New threshold details loaded onto IHD Message s transferred Re tries on failure Confirmation received that new load limit details loaded Ack sent to confirm changes Ack sent to confirm changes Message s transferred Re tries on failure IHD sounds displays Meter measures notification for load consumption load reaching limit alert threshold reached Load alert notification P d logged in relevant system Message s transferred Re tries on failure Customer educes load IHD sounds displays notification for impending power cut and countdown Meter measures consumption load limit reached Power cut notification logged in relevant system Meter cuts power until customer intervention Message s transferred Re tries on failur Meter receives onfirmation to re check load amp reconnect Ye Load acceptable Yes y if ppd eed Meter reconnects F power and monitors resumed Power on notification logged i
23. procedures Firmware upgrades m Tariff structure capabilities and limitations n Individual component packaging details ol Component packaging details for bulk delivery p Minimum packaging requirements for safe return to manufacturer 24 1 3 The manufacturer shall specify how frequently data is passed updated between a meter and the IHD This specification shall include all data types being passed between the IHD and the meters A full explanation shall be provided for the frequencies quoted e g battery life limitations etc 24 1 4 The manufacturer shall provide detailed documentation to describe the method by which meter reads in kWh and cubic metres will be retrieved to the British Gas head end system for a Scheduled reads b On demand reads 24 2 Configuration information 24 2 1 The meter manufacturer shall provide full information relating to the requirements for configuration of each component of the metering system including the following a Data items and characteristics configured at the time of manufacture b Data items and characteristics unchangeable after manufacture C Data items and characteristics configurable remotely after manufacture d Data items and characteristics configurable locally after manufacture e Documentation of commissioning tools and processes used to update data items and characteristics both remotely and locally f Information required from British Gas for each component prior t
24. see 16 11 and export pricing electricity only in addition to the 48 x 1 ToU and 8 x 8 basic tariffs Gas meters shall support the following tariff structure a Single rate tariff kWh b 48 x 1 ToU tariff C 8 x 8 tariff Electricity meters shall support the following tariff structure with optional mandatory peak pricing a Single basic tariff kWh import and export b 48 x 1 ToU tariff import and export C 8 x 8 tariff import and export Tariff and price updates shall be date bound to an effective from date and time where appropriate Meters shall be capable of receiving the next tariff update in advance and apply the changes when the effective from date and time DD MM YYYY HH MM condition is met Each register and appropriate tier shall be clearly labelled with a configurable identifier that is appropriate to its use Meters shall be capable of being configured to support individual tariff structures i e 48x1 rates for electricity differ from the 48x1 rates for gas Meters shall be capable of operating in different tariff structures to each other l e Electricity operating using the 8x8 structure and gas operating using the 48x1 structure Critical Peak Pricing CPP electricity only Electricity meters shall be capable of accepting a command to enter a period of Critical Peak Pricing CPP Meters shall be capable of accepting a command to react immediately or to react to a future
25. systems on mode change that shall be referenced when credit is added This number can be updateable by the Head end system Meters and IHDs shall state the required funds needed to satisfy the requirements in section 13 37 CREDIT METER PAYMENTS The smart meter system shall synchronise all payment information with the head end system Meters and the IHD shall display the fact that a payment has been successfully made together with the amount paid and date of the transaction It shall be possible for a consumer to see the payment history The payment history retained in meters and being capable of being displayed locally in the meter and IHD shall as a minimum include a The last five payments or credit added b The amount of any managed debt energy and non energy c The reduction of and the expected clearance date of managed debt d Dates and times associated with payments 14 4 14 5 15 15 1 15 2 15 3 15 4 15 5 15 6 PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 e Payments amounts and fuel type It shall be possible for the consumer to see an estimated monetary value of their consumption since their last bill The meter shall display the day of the billing period l e Day 4 of 30 Billing periods can be monthly or quarterly and shall be configurable locally and remotely by authorised personnel REAL TIME CLOCKS All components shall have an internal date and time clock operating in GMT
26. there will be one IHD Note See section 19 for further information All components connected to the HAN shall be Zigbee Smart Energy Profile SEP certified as a minimum with proprietary extensions being managed separately Proprietary extensions to certified Zigbee command set profiles where required shall be managed jointly between the meter manufacturer and British Gas The complete smart metering system shall not rely upon an IHD to deliver its core functional requirements The hub shall be designed such that it can be independent of the electricity meter and be installable either live side or load side of the electricity meter In the case of load side installation the hub shall be capable of maintaining communications in the event of disconnection or power failure SIE PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 Note Industry regulations may change to indicate a preferential solution to the location of the comms hub when a gas only solution is being applied 9 6 The smart metering system should incorporate the facility to link additional Zigbee SEP certified and British Gas compliant components to the HAN under head end system control with a consumer s HAN or a secondary communications channel to provide enhanced functionality 9 7 The smart metering system shall be able to incorporate a meter s that can measure electricity generated and or exported see Figure 2 to support export metering and Feed in Tariffs FITs W
27. time means the time between the instigation of a measuring action and its completion This also includes the length of time a register is used before changing to the next e g the term Half hourly means 30 minutes with an MPE of 0 0196 Note 2 Absolute time means the time value within an instrument that replicates UTC Coordinated Universal Time The half hourly register change may take place at for example any time between noon and three minutes past this being throughout the life of the meter if the internal clock were not to be synchronised The clock shall be used to time stamp meter read logs events and transactions in GMT The smart meter system shall be capable of a Displaying time in BST b Managing leap years through its life C Maintaining a log of clock resets and faults PJE PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 16 16 1 16 2 16 3 16 4 16 5 16 6 16 7 16 8 16 9 16 10 16 11 16 11 1 16 11 2 16 11 3 Ege TARIFFS AND PRICING Meters shall be configurable to operate as a multi rate meter Time of Use ToU Meter tariffs tariff tiers and tariff rates shall be configurable locally or remotely by authorised personnel Note Also see section 12 Meters shall record interval data over configurable time periods where the interval period is 30 minutes or smaller Meters shall be capable of supporting multiple tariff structures e g Critical Peak Pricing CPP
28. to authorised personnel using an appropriate password both locally in all modes of operation and remotely in the case of Commissioning Credit and Pre payment PAYG modes and regardless of the interrupt status of the consumer It shall not be possible for a consumer to switch a meter between any modes It shall be possible for meters to be switched into and out of commissioning mode locally by authorised personnel using an appropriate password Note See section O for further detail on commissioning The rest of this section 10 details only credit and pre payment PAYG modes of operation It shall be possible for meters to be switched between credit and pre payment PAYG modes locally or remotely by authorised personnel using an appropriate password and by the meter itself where it cannot gain access to core systems and is applying internal routines credit rules to be agreed in writing with British Gas Note Also see clause19 1 8 It shall be possible for the mode change to have a start date in the future upon which date the meter acts and changes the mode Following a change of mode between credit and pre payment PAYG the meter s mode of operation shall be communicated to the head end system The meter shall store the ten most recent mode changes between credit and pre payment PAYG together with their start date of change over and current meter reading totalised consumption Note Meters will include the facility to hold a c
29. British Gas d PR smart Part1 GenReq Final V4 0 2010 03 29 PRODUCT REQUIREMENTS FOR SMART METERING SYSTEMS PART 1 GENERAL SYSTEM ARCHITECTURE MARCH 2010 Copyright 2010 British Gas All Rights Reserved PR SMART PART GENREQ FINAL V4 0 2010 03 29 CONTENTS INTRODUCHON HE 4 1 SCOPE o 4 2 PE ENC eo C e 5 3 EE VINTON c tives 5 4 COMPLIANCE WITH EUROPEAN COMMUNITY DIRECTIVES esses nnne nennen 5 5 ipe 6 5 1 General requirements ccccseeeeeccccececeseeeeeeceeeeeeaeeeseeceeeeesseeeseeceeeeesseeaseeeeeeessueaeeeeeeeeesaaas 6 5 2 ME LA 0 TS E 6 5 3 Intrinsic safety requirements c ccccccseeeceeceeseeecaeeeeeeneaseeeceaeeeessaaeeeeseseeeseaeeeesnseesaageeeesaags 6 6 GENERAL REQUIREMENTS ccccsssssssecceccccccceeesseccecccesseneussseeecccessseausseeeececcesseuuasecsecessssuaggaseeeseess 7 6 1 E E estos ds sert A E E A E E GUI PG INN MU uU MNT EM 7 6 2 SL SL SMSO e 8 6 3 Marking Identification and serial numbers 44 8 6 4 Modalar OMS IG UO RE de A 9 7 zem H E 9 7 1 CO nz EE 9 7 2 NOO RENI 9 8 sess qc n 10 9 OVERALE SYSTEM ARCHITECT teen Seege
30. Manager British Gas Copyright O 2010 British Gas All rights reserved No part of this publication may by reproduced in any material form including photocopying and restoring in any medium or electronic means and whether or not transiently or incidentally without the written permission of British Gas except in accordance with the provisions of the Copyright Designs and Patents Act 1988 64
31. RT PART1 GENREQ FINAL V4 0 2010 03 29 Previous BGAS configuration applied Appropriate welcome message displayed Ack Previous BGAS configuration applied Appropriate welcome message displayed Default configuration applied Appropriate welcome message displayed Default configuration applied Appropriate welcome message displayed Appropriate message re meter mode displayed Previous BGAS configuration applied Previous BGAS configuration applied Previous BGAS configuration applied Default configuration applied Default configuration applied Previous BGAS configuration applied Default configuration applied Mode switch to prepayment Ack Default configuration applied Ack Mode switch to prepayment Previous BGAS configuration applied E l on failure Message s transferred Ack Previous BGAS configuration applied Message s transferred EM s on failure Get previous BG configuration and send to metering system Message s transferred Re tries on failure Previous BGAS configuration applied Message s transferred Re tries on failure Default configuration applied EM on f Message s transferred OF Default configuration applied ailure Message s transferred Re tries on failure Default conf
32. addition to the 48x1 and 8x8 tariff structures 16 12 16 12 1 48 x 1 Time of Use This configuration is described as follows a 48 ToU cumulative import consumption registers b 48 ToU cumulative export registers electricity only C Each ToU register shall be associated with a rate whose value shall be configurable remotely d The meter shall be capable of recording up to 200 ToU switches with the following parameters 1 Start time definable in hours and minutes thus a minute is the smallest interval possible 2 ToU register to use 3 Days of week 4 Months of year or from DD MM a mapping uses one or other method but both shall be possible 5 Use of auxiliary relay switch i e a capability to control switched loads in line with ToU rate switching times electric only Example 1 10 00 Mon January maps to Rate Register 1 17 00 Mon January maps to Rate Register 2 Example 2 10 00 01 01 01 maps to Rate Register 1 e CPP supersedes the 48x1 tariff structure whiles the CPP valid from and to time period is in effect 23 PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 16 12 2 16 13 16 13 1 The price for each ToU register import and export and ToU switching mappings shall be configurable locally or remotely by authorised personnel 8x8 This configuration is described as follows a There are three main inputs into this pricing configuration 1 Mappings to ToU registers Rate registe
33. at a component incorporating both long and short range radio transmitters could fail testing if both transmitters operate simultaneously Unless simultaneous operation is guaranteed not to occur tests involving simultaneous transmission will be required 235 PR SMART PART GENREQ FINAL V4 0 2010 03 29 22 4 22 5 A 23 1 23 2 23 3 23 4 24 24 1 24 1 1 Components shall meet the radio interference suppression requirements of BS EN 55022 or equivalent class B Any radio transmitting devices both long range to the WAN and short range to the HAN shall comply with the appropriate ETSI test Standard MAINTENANCE AND RELIABILITY The smart metering system shall be designed to have an operational life of at least 20 years Battery life shall be at least 10 years The manufacturer shall use recognised industry standards e g Siemens norm SN 29500 MIL HDBK 217F or others acceptable to British Gas to provide details of mean time between failure MTBF analysis calculations which shall be provided to British Gas The smart metering system shall be factory sealed and be maintenance free with the exception of a Battery changing b Exchange of purpose designed modules within components c Exchange of individual components DOCUMENTATION Technical and functional specification documentation The manufacturer shall provide a detailed technical and functional specification including dimensioned engineering dr
34. ate some ability to undertake remote fault diagnostics for example on detection of an event associated with HAN or WAN communications 18 11 As a minimum the following tampers should be detected and processed Note The following outlines key requirements a more detailed list is given in Appendix B a b c d e f g h j k I m Removal of sealed components covers Power loss removal of battery Strong magnetic field detected Incorrect protocol or passwords including SIM PIN entered e g via interface in the comms hub Multiple attempts at entering information relating to billing e g vend codes Unusual HAN traffic Reverse flow current Note Account will need to be taken for electricity meters associated with micro generation Unexpected change of clock time Note Clock errors may also be due to a fault see clause 18 9c Loading or attempted loading of unsigned code to a component including unauthorised changes to the Zigbee and GSM GPRS firmware Malformed unauthenticated communications between local components and from the hub to the head end Abuse via other channels e g Malformed SMS sent individually or chained together Removing SIM Failed connection attempts to any component by unauthorised components 18 12 The configuration settings for all events including faults tampers and alerts should be bound by a start and end date 29 PR SMART PART GENREQ FINAL
35. awings and accompanying specifications where appropriate of all components comprising the smart metering system The specifications shall provide all the information required to allow British Gas to a Configure its head end to support all functionality from its internal systems b Define suitable business processes c Develop other components such as enhanced IHDs that are interoperable with the manufacturer s components d Develop storage solutions for palletted components delivered to regional stores e Develop storage solutions for components in transit between stores consumer s premises and returns under warranty or for evaluation repair 24 1 2 The documentation should cover the following aspects at a high level of detail E a Each component making up the metering system b The metering system architecture and inter dependencies of each component c HAN used for local communications d HAN architecture including allocation of the controller e Origination flow and storage of data in the HAN f Dependencies on HAN devices g Process for replacing re pairing HAN devices PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 h How the metering system will link to the British Gas head end system and the command sets protocols available i Meter system error handling and reporting j Identification of the root cause of alerts and exceptions complete with resolution path k Installation removal and maintenance
36. be exchanged due to the expected end of life time 10 Battery life remaining Last Gasp battery failure Battery voltage low Indicates that the battery voltage is low Program memory error Indicates a physical or a logical error in the program memory RAM error Indicates a physical or a logical error in the RAM NV memory error Indicates a physical error in the non volatile memory Measurement system error Indicates a logical or physical error in the measurement system Communication error Indicates a communication problem when reading the meter Communication ok Indicates that the communication with the meter is ok again Error register cleared Indicates that the error register was cleared as above error register has been cleared all flags cleared Alarm register cleared Indicates that the alarm register was cleared Watchdog error Indicates a watch dog reset or a hardware reset of the microcontroller Disconnector failure Indicates the DCU failure to 1 drive charged enough in 5s or 2 current flow was detected although the DCU should have disconnected the premises Current with no voltage Indicates that current is flowing where no voltage is applied Usually indicates fraud Incorrect polarity Indicates wrong mains connection Usually indicates fraud or wrong installation Measurement SW changed On command calculated flying checksum over the measurement firmware is not eq
37. be hacked Wide Area Network Western European Legal Metrology Cooperation an organisation of legal metrologists Compressibility Value that expresses the variation of real gas properties from the ideal gas law For meters operating on a typical gas supply pressure of 21 mbar this value is taken to be 1 49 PR SMART PART GENREQ FINAL V4 0 2010 03 29 APPENDIX B DETAILED LIST OF EVENTS B 1 Commissioning B 1 1 B 1 2 B 2 B 2 1 B 2 2 B 2 3 B 2 4 B 2 5 B 2 6 B 2 7 B 2 8 B 2 9 B 2 10 B 2 11 B 2 12 B 2 13 Power up Indicates that the component is powered again after a complete power down Event log cleared Indicates that the event log was cleared This is always the first entry in an event log It is only stored in the affected event log Date and time stamp only activated by authorised personnel Operation Manual disconnection Indicates that the disconnector has been manually disconnected Manual connection Indicates that the disconnector has been manually connected Remote disconnection Indicates that the disconnector has been remotely disconnected Local disconnection Indicates that the disconnector has been locally disconnected i e via the limiter Limiter threshold exceeded Indicates that the limiter threshold has been exceeded Limiter threshold ok Indicates that the monitored value of the limiter dropped below the threshold Limiter threshold cha
38. bers Passwords must not be based on 1 Dictionary words or other real names 2 Dates or any aspect of the calendar 3 Family names or initials 4 Vehicle registration numbers 5 Serial meter numbers or other hardware serial numbers 6 Company names or associated references 7 Telephone numbers 8 User ID group ID or codes associated with the system 9 More than two consecutive identical characters 10 All numeric or all alphabetic sequences F 2 Frequency of password and key change h Keys and passwords will need to be changed more frequently on identification of any weakness or compromise in the authentication and encryption mechanism protecting the components and application layer The frequency of key change will need to be increased on identification of a vulnerability weakness in the cryptographic protection The frequency of change shall be based on its ability to provide interim protection whilst the vulnerability is addressed in the cryptographic suite libraries 63 PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 ENDNOTES History First published as Release Date Working draft March 2009 Split to five documents Sept 2009 Amended version 15 October 2009 Final Version 29 March 2010 Key changes Seion Amendes o Nem Comments Comments and queries regarding the technical content of this product requirement document should be directed to Gareth Williams Metering Technology
39. but are not limited to 19 2 19 2 1 20 20 1 20 2 20 2 1 20 2 2 20 2 3 20 2 4 PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 a Provision to accept a command during a normal data transfer typically a daily update of meter reading to the head end system to enable it to wake up at a specific time when it may receive further instructions b The ability of a button push or series of button pushes on the meter to instigate an immediate wake up Communications to Hand Held Terminal HHT The components within the metering system comms hub meters IHD shall be configurable locally using the HHT such local interrogation should be via Zigbee or a local programming port e g an optical port often known as an IEC port as specified in BS EN 62056 21 INSTALLATION COMMISSIONING AND DECOMMISSIONING All components of the smart metering system shall be capable of being installed bound unbound commissioned and decommissioned without the use of a HHT Commissioning As far as is practicable the smart metering system should be plug and play i e components should identify each other and pair with as little installer input as possible Where an installer is required to enter any information e g MPRN or MPAN the mechanism for entry shall be as simple as possible the digits shall be displayed without the need to scroll and any data entry errors shall be easily corrected During any pairing operation
40. ch shall be identical to that shown on the label or marking plate The barcode standard should be selectable to meet MAP MAM requirements c Within the memory of each component permanently storing the following 1 Component serial number which shall be identical to that shown on the label or marking plate 2 The Media Access Control MAC address of the component 3 Master key install code used to manage network connections d Within the memory of each component storing the following 1 Internet Protocol IP address 2 Meter Point Administration Number MPAN or Meter Point Administration Number MPRN as applicable 3 Pre payment PAYG PAN 6 3 2 It shall be possible for these unique identifiers to be transmitted securely confirmed and synchronised across all components as appropriate and to the head end system also see sections 17 2 and O 6 3 3 6 4 6 4 1 6 4 2 6 4 3 6 4 4 6 4 5 6 4 6 7 1 7 1 1 7 2 7 2 1 PR_SMART_PART1_GENREQ FINAL V4 0 2010 03 29 Note This information will also need to be made securely available to aid with for example a change of supplier All components of the smart metering system shall be branded as property of the asset owner e g British Gas Modular construction It is permissible for individual smart metering components to be constructed in a modular fashion Such construction shall not compromise safety metrology or security also see clause 5
41. ct Spread UTRA for Mobile and portable UE radio and ancillary equipment EN 301 908 01 Electromagnetic compatibility and Radio spectrum Matters ERM Base Stations BS Repeaters and User Equipment UE for IMT 2000 Third Generation cellular networks Part 1 Harmonized EN for IMT 2000 introduction and common requirements covering the essential requirements of article 3 2 of the R amp TTE Directive EN 301 908 02 Electromagnetic compatibility and Radio spectrum Matters ERM Base Stations BS Repeaters and User Equipment UE for IMT 2000 Third Generation cellular networks Part 2 Harmonized EN for IMT 2000 CDMA Direct Spread UTRA FDD and E UTRA FDD UE covering the essential requirements of article 3 2 of the R amp TTE Directive A 3 Council and European Parliament 1999 519 EC Council Recommendation on the Limitation of Exposure of the General Public to Electromagnetic Fields AA Institution of Gas Engineers and Managers publications IGEM GM 7 7A Electrical connections for gas metering equipment 7B Hazardous area classification for gas metering equipment 43 PR SMART PART GENREQ FINAL V4 0 2010 03 29 Ah WELMEC WELMEC Software Guide 7 2 Measuring Instruments Directive 2004 22 EC A 6 Reliability models MIL HDBK 217F Military Handbook Reliability Prediction of Electronic Equipment Siemens norm j Failure rates of components expected values 2004 based SN 29500 on IEC 61709 A
42. cted as described in clause 17 1 2 but in addition the opening of such compartments shall not allow access to any circuit boards or mechanisms that could compromise the physical or electrical integrity of the component or module All anti tamper mechanisms shall be capable of being reset by authorised personnel Where any component incorporates a module or is of modular construction the construction method shall not compromise security features or anti tamper measures This shall also be the case during a module exchange Data security All data exchanges across all parts of the smart metering system shall be made using data encryption e g data transfers involving the e wallet see clause All Zigbee components shall use a network key Access to data or configuration of the meter shall only take place where a Access has been authorised b Communication is encrypted Data encryption shall employ AES 128 bit encryption Note 1 This may impact on the use of the Zigbee Smart Energy Profile Note 2 Proprietary methods of encryption are not acceptable All cryptographic protocols that require the generation and use of secret values e g public private keypairs shall use a pseudo random number generator PRNG The smart metering system shall be able to remotely disassociate any component in the network including but not limited to the meters in home display and the comms hub The manufacturer shall provide British Gas the met
43. cting with the smart metering system The HHT shall be authorised for use for limited periods after which it shall cease to function unless revalidated by authorised personnel in conjunction with re synchronisation with the head end system The duration of the limited time period shall be with the written agreement of British Gas Revalidation and re synchronisation shall be possible at any time the following of which shall allow the HHT to function for the full term of the limited time period as described in clause D 1 3 It shall be possible to disable the HHT remotely The interface between the comms hub and the hand held terminal is to be confirmed Any data held on the HHT shall be retained in the event of any battery failure or removal This data shall be retained for a minimum of six months Before any data is extracted from the smart metering system where such an extraction will mean the permanent loss of data the HHT shall check it has sufficient memory capacity to accommodate all the transferred data If such capacity is not available the transfer shall not begin and a warning message shall be displayed The HHT shall incorporate a mechanism to ensure that before any changes are made to the smart metering system the head end system the HHT and smart meter system are in synchronisation Note This mechanism will ensure that a meter worker will not accidentally alter a meter that is different from the one expected by the head e
44. d 05 59 59 to be charged at x pence units consumed between 06 00 00 to 23 59 59 charged at y pence Communication two way from a Head end system to a smart metering system and from the metering system to the Head end system Supply end date Smart Energy Profile Zigbee requirement document Subscriber Identity Module A means to identify components that are a variation from a standard system e g a semi concealed gas meter a polyphase domestic electricity meter an electricity meter having a contactor for an additional circuit etc Short Message Service Supply start date Temperature A table of fixed prices for amount of energy consumed by a consumer that is made up of various rates and tiers The detection of deliberate interference with a component e g connecting a meter in reverse A means of charging differing amounts for energy consumed based on the quantity of energy consumed i e the first 100 units to be charged at x pence the next 500 units to be charged at y pence Time of Use Encrypted numeric code used to transfer a payment to meter Note This can be transferred remotely or entered locally to the metering system Normally contains the monetary value plus any unique identifiers required by the meter to ensure individuality Technique of automatically scanning for telephone numbers dialling to search for computers or searching for wireless networks from a moving vehicle Unprotected equipment can then
45. dated CPP period The CPP period shall be a configurable time period expressed in from and to date and time From DD MM YYYY HH MM and To DD MM YYYY HH MM and it shall be possible to set the period for each separate CPP event 16 11 4 16 11 5 16 11 6 16 11 7 16 11 8 16 11 9 PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 It shall also be possible for the CPP event to be a future or recurring time period set in the meter It shall be possible to associate 2 tiers 1 threshold and 2 all other consumption with each CPP event It shall be possible to set unit rate prices for each of the 2 tiers for each CPP event either set at each event or set up in advance on the meter It shall be possible to record the consumption on the meters split as per the 2 tiers for each CPP event where there is more than one CPP event between scheduled meter reading submission the consumption for each CPP event shall be recorded separately It shall be possible for the consumer to accept or reject a CPP event where this option is available via the meter and via the IHD and to send the consumer s response back to the head end systems It shall be possible for there to be CPP events where the consumer is not given the option to accept or reject 16 11 10It shall be possible to notify the consumer on the IHD and on the meter in advance of the CPP event whether this is already set up on the meters or not 16 11 11CPP shall be available in
46. debt recovery rate and the times that debt is recovered shall be remotely configurable Debt recovery shall be independent of vends Note This means that debt will be recovered on for example a daily basis whether or not a consumer uses energy or adds further credit The debt recovery rates and any changes to them shall be displayed on the meter and IHD The meter shall store the history of the last 10 debts recovered of each type from the meter balance vend and synchronise this data with the Head end system It shall be possible to apply consumer treatment rules categorisation to a consumer s meter which are remotely managed Examples of treatment rules are a Vulnerable consumers interrupt should be permanently disabled b Non interrupt periods friendly credit 1 Hours of the day 2 Days of the week 3 A minimum of ten special days e g Christmas day etc 4 Seasonal The meter shall store up to 100 treatment rules and be able to apply these to either energy type 19 PR SMART PART GENREQ FINAL V4 0 2010 03 29 13 35 13 36 13 37 13 38 13 39 13 40 13 41 13 42 14 14 1 14 2 14 3 20 Meters shall continue to supply energy in the situation where credit or emergency credit run out during configurable non interrupt periods The balance value can drop below the limit of emergency credit during a non interrupt period At the end of the non interrupt period if the meter is still wi
47. details synchronised with the head end system Full synchronisation shall take place during installation and commissioning see section 20 2 4 Throughout the life of the system regular configurable synchronisation events of configurable data shall be possible Examples of but not limited to information that should be regularly synchronised include a b c d e Clock time Credit levels Total meter reading Tariff information Configuration details 15 PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 12 5 12 6 12 7 12 7 1 12 7 2 12 7 3 12 7 4 12 7 5 12 7 6 6 f PTZ conversion factor g Calorific value The smart metering system shall update its information from the meters to the IHD and to the comms hub via the HAN as often as is reasonably practicable but with due consideration of battery life of a gas meter Notwithstanding this the updates should be at least every 30 minutes for gas and at least every 5 seconds for electricity The smart metering system shall allow for the change of energy supplier remotely without removing components Configurable meter rules The smart meter system shall be capable of continuing to operate within the HAN when communications to the head end system is lost albeit with the loss of the functionality that would be given by such communications Where communications to the head end are lost e g due to WAN HAN or comms hub failure the smart me
48. e at Change of Supplier CoS Loss Components shall be capable of being cleared of British Gas specific information but the consumer specific load profile information shall remain Where components include registers that form the measurement result that serves as the basis for the price to pay these register shall not be cleared Authorised personnel shall be able to configure a component such that it may be left in a safe state In the case of meters they shall be capable of being left in one of two possible modes as defined at 10 1 suitable for subsequent take over by another supplier a Suppressed functionality recoverable oo PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 b No Smart Dumb mode with no HAN not recoverable 20 5 4 Fault analysis 20 5 4 1 Any component except the comms hub shall be replaceable through the decommissioning and commissioning processes In the case where the comms hub requires replacement the HAN may need to be reset 20 5 4 2 The HHT software shall be able to interact and extract all meter data in the event of a 20 6 20 6 1 21 21 1 21 1 1 21 1 2 21 1 3 21 1 4 21 1 5 21 1 6 21 2 21 2 1 21 2 2 21 2 3 34 communication or software fault error Firmware upgrade The HHT software shall support all required functionality to upgrade firmware on all smart meter system components see section 21 2 SOFTWARE General All software used in all compo
49. eral Packet Radio Service GPRS radio communication for the WAN The smart metering system should support alternative WAN communications technology for use in areas of limited or no GPRS coverage The smart metering system shall incorporate a Home Area Network HAN communications system between locally mounted components see section 9 The HAN shall be capable of supporting the smart metering system in all UK homes e g communal meter housing in blocks of flats large homes and buildings with solid internal walls new builds with foil lined walls The smart metering system shall use Zigbee 2 4GHz and communicate using Smart Energy Profile SEP and any private extensions necessary to support the functional requirements for the HAN radio communications The smart metering system should support alternative HAN communications technology for use in buildings where high attenuation of radio signals is experienced and the use of repeater devices signal boosters etc is not possible Meters shall be capable of supporting ad hoc requests for readings configurations logging and balances from the head end system and shall respond within 10 seconds Note Ad hoc requests for gas meters may include a time delay between the request and the response to the request to allow for them not being permanently in a state that allows for communications to take place e g due to battery life considerations PR SMART PART1 GENREQ FINAL V4 0 2010 03 29
50. eter system Event logs shall retain their data on decommissioning un pairing change of supply of the meter The occurrence of an event shall where configured be transmitted to the head end system immediately upon occurrence or in cases involving loss of power as soon as is reasonably practicable Alerts shall be configurable into groups or classes e g low medium high Note A non exhaustive lists of alerts appears in clauses 18 9 and 18 11 Each event group or class of events shall have configurable rules for treatment e g transmit immediately to the head end transmit on next transaction suppress but retain in meter log and for actions resulting when the alert occurs e g interrupt supply flag to consumer via meter and via IHD switch to pre payment PAYG mode As a minimum the following faults should be detected and processed Note The following outlines key requirements a more detailed list is given in Appendix B a Low battery b Battery about to expire c Clock time invalid Note Clock errors may also be due to an external tamper see 18 11h d Internal memory error both program and RAM e Memory capacity reached f g h i j PR SMART PART GENREQ FINAL V4 0 2010 03 29 Unexpected hardware resets Measurement errors HAN and WAN communications errors Faults with the meter shut off mechanisms Unexpected program operation 18 10 The smart metering system should incorpor
51. for move out read on date of Poll meter for today s read Poll meter for today s read No HMV is today s date No HMV is Retrospective MDUS looks for most recent read prior to then estimates to HMV date Read posted to billing System to produce final bill viessage s Yes Re tries on failure Initiate message for metering system cleardown Message s transferred Re tries on failure Removal of all Removal of all Removal of all Removal of all customer and BG customer and BG customer and BG customer and BG configuration data configuration data configuration data configuration data address known Storage of all customer ra ra ra and BG configuration data Yes ew address with BGAS No Send final bill details to the NEW PROPERTY IHD on confirmation of move in from customer Yes Message s transferred L Re tries on failure Send final bill and marketing documents to new address Transfer of all customer and BG configuration data to NEW PROPERTY Replicate configuration data on NEW PROPERTY meter Replicate configuration data on NEW PROPERTY meter Replicate configuration data on NEW PROPERTY IHD Message s transferred L Re tries on failure Invoke Chase the Chain process BER C7 Homemove Move in PR SMA
52. fter a configurable time C The meter s shall then operate as per the normal business rules for pre payment PAYG mode i e offering emergency credit consulting the consumer treatment flag interrupting supply The smart metering system shall allow the configuration rules shown in this section i e 12 7 to be updateable remotely and locally by authorised personnel 13 13 1 13 2 13 3 13 4 13 5 13 6 13 7 13 8 13 9 13 10 13 11 13 12 13 13 13 14 PR_SMART_PART1_GENREQ FINAL V4 0 2010 03 29 Note It is anticipated that these rules and consumer profiles will be centrally generated within the head end system and that they will vary over time and will be updated accordingly PRE PAYMENT PAYG During normal operation the smart meter system shall synchronise all payment information with head end systems In the case of gas meters the smart meter system shall be capable of generating energy values and related monetary values from the metrological reading of the meter It should do this by performing a calculation using indicative values of CV and PTZ conversion factor that are synchronised with the head end system Note Other methods of energy determination may be agreed in writing with British Gas Meters shall where configured to do so interrupt the consumer from the incoming supply when there is no credit or emergency or friendly credit The smart metering system shall not use a token slot t
53. hile the design of a generation meter falls outside the scope of this requirements specification it is expected that Ee Party generation meters shall use Zigbee SEP to communicate with other functional devices via the HAN Two way local comms Hub for local amp remote comms Generation Generation meter 1 meter 2 Figure 2 Example generation and export system architecture 10 MODES OF OPERATION 10 1 Meters shall be capable of operating in five distinct modes a Commissioning b Credit operating using the 48x1 or 8x8 Tariff options C Pre payment Pay as you go PAYG Mode 48x1 and 8x8 tariff options Gr KE 10 2 10 3 10 4 10 5 10 6 10 7 10 8 10 9 10 10 PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 d Suppressed functionality mode recoverable remotely 1 Credit mode single rate configuration 2 Pre payment PAYG mode single rate configuration 3 No WAN mode no messages alerts reads profiles communicated to head end 4 AMR mode obtain automated meter readings only 5 Reduced or no IHD communications e Non Smart dumb mode not recoverable remotely No HAN and where only basic eyeball functionality is maintained All mode switching shall only be possible using secure communications or internal firmware following specific routines and rules to be agreed in writing with British Gas Note Also see clause19 1 8 All meter functionality shall be available
54. his information will help an installer determine whether or not the installation procedure has locked up During the installation procedure the smart meter s unique identifiers shall be checked with equivalent data in the head end system If there is a discrepancy an error shall be flagged to the installer The smart metering system shall be designed such that the installation procedure shall normally be achievable in as short a time as possible without the installer resorting to telephone calls to any office based support staff Note Exceptions to normally achievable includes e No Hand Held Terminal e Poor signal situations requiring antennas e Gas meter not co located e Gas only installation Following a successful installation the meter system shall be switched to credit or pre payment PAYG mode and shall display appropriate messages e g Welcome Note The appropriate mode and message will be determined by the head end system and will be transmitted to the smart meter system during the installation procedure The smart meter system shall allow for individual components to be installed and commissioned independently Where a component is changed it shall be possible to apply the old component s configuration to the new component Note This will allow for a single component change for upgrade purposes or replacement due to a fault or a complete system change All processes shall be able to be carried out witho
55. hod by which the encryption is generated A gas meter and an electricity meter shall use different encryption keys for establishing and maintaining communications Note This is to enable the transfer of meters when a consumer has requested a change of supplier particularly of one fuel Following a change of supplier each supplier s equipment will only pair within the appropriate system 17 2 9 17 2 10 17 2 11 17 2 12 17 2 13 17 2 14 17 2 15 17 2 16 17 2 17 17 2 18 17 2 19 17 2 20 17 2 21 PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 The key used for installation install code should be loaded using another communications channel other than the HAN out of band at the time of installation The storage of keys shall be secure at all points Any security data once written into the memory of a component shall not be capable of being read without a means of authentication and authorisation Source node authentication shall be implemented The HAN shall be secure Only authorised components shall be allowed to connect to the HAN The WAN shall be secure Only authorised components shall be allowed to connect to the WAN Components shall be pre configured with a temporary link key install code Components shall be Smart Energy Profile certified Note At the time of writing the IEEE 802 15 4 layer 2 security mechanism conflicts with Smart Energy Profile It would therefore be prudent to use S
56. iguration applied E on Message s transferred Default configuration applied failure Message s transferred Re tries on failure Message s transferred Message s transferred Re tries on failure Yes Obtain read used for previous tenant move out Yes Obtain read used for previous tenant move out Yes Obtain read used for previous tenant move out L Re tries on failure Yes Obtain read used for previous tenant move out New tenant details known ove in from BGAS site metered Get previous relevant BG configuration apply efault to Smart specific configuration and send to metering system Message to reset all metering system components to default state Message to reset all metering system components to default state tification fro move in tenena within x days No 59 PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 C 8 Join Notification received Acquisition sales order from previous supplier created Communication channel established Held in pending until Communication channel established Configure phone numbers security settings to BG y Confirmation received and sent to MDUS and SAP Create customer account template Create customer component table Excepti
57. in the manufacturer s possession shall be stored under cover and not be exposed to excessive dust or water contamination All smart metering components shall be protected against damage during the storage and delivery process In particular the inlet and outlet connections of gas meter shall be protected to prevent the ingress of foreign particles Where required a complete kit of all smart metering components should be available in one package Where multiple packages are loaded together on one pallet the packages shall all be of the same type and if appropriate contain components having the same version number in both hardware and software The loaded pallets should be strapped and then covered in shrink wrap type waterproof materials Package dimensions to be supplied Labelling requirements including bar coding to be provided All packaging shall be clearly labelled with the following a Handle with care b This way up c The weight in kilograms d The contents e Any labels required under COSSH Control of Substances Hazardous to Health Regulations 2002 The recommended method of lifting as required by the Manual Handling Regulations 39 PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 APPENDIX A REFERENCES This series of documents makes reference to the documents listed below see clause 2 1 A 1 British European and Global Standards BS EN 437 BS 746 2005 A1 2009 BS EN 1359 1999 A1 2006
58. itish Gas smart meter system requirements for phase 3 of the smart metering trial using information captured from various sources including discussions with some manufacturers and phases 1 and 2 of the trial This document is expected to change as phase 3 of the trial progresses This document concentrates on requirements that are applicable to all components in a smart metering system This document is part of a series of specifications as follows e Part 1 General System Architecture e Part 2 Gas meter e Part 3 Electricity meter e Part 4 Telecommunications hub e Part 5 In home display This document shall be read in conjunction with all other documents in this series 1 SCOPE 1 1 This document defines the minimum general British Gas product requirements for a Smart gas metering systems with a flow capacity not exceeding 6m hr b Smart electricity metering systems having single phase with a capacity not exceeding 100A C Gas and electricity consumption data capture transmission retention display and query d Reception and utilisation of external data and commands e Smart metering commissioning equipment Note The term system includes in home display IHD units communication hubs etc it does not include head end systems e g billing and data computer systems although reference to these may be included 1 2 All parts that constitute a smart metering system are referred to as components thro
59. l In Home Display Internet Protocol Person or persons who physically installs configures commissions or repairs equipment as appropriate in a consumer s premises Note This may also include persons remote from the site involved with sending configuration data over the air Joule JTAG kg kV kW LF M2M MAC address Main battery MAM Module Modulus of a number MO P MPAN MPRN MPE MTBF Notified Body NMO PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 Joint Test Action Group Note This is the common name used for the IEEE Standard IEEE 1149 1 used to define test ports terminals used for testing printed circuit boards Kilogram Kilovolt Kilowatt Low Frequency Machine to Machine Media Access Control Primary source of long term electrical power in a battery powered component of the smart metering system e g the gas meter Meter Asset Manager Sub assembly of a component that may be capable of on site exchange e g a comms module Absolute value without regard to sign Meter Operator Meter Point Administration Number Meter Point Reference Number Maximum Permissible Error Modulus of extreme values of an error permitted by specifications regulations etc for a given measuring instrument Mean Time Between Failures Organisation that has been nominated by a member state and Notified by the European Commission A Notified Body will be nominated based on designated requirements
60. ld again Indicates power factor is again after being under over the set threshold for a period longer than the delay time PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 APPENDIX C PROCESS FLOW DIAGRAMS C 1 Installation amp Commissioning Process Map Install IHD power up and trigger to join HAN File of technical metering data for all installs due sent to File of selected customers and all Install data loaded BGAS Table template created BGSE CMO access for customer and roperty el metering details prep y Perform safety checks E Connect to GPRS relevant data sent to Head End Pass protocol v Engineer checks for GPRS signal Record signal amp source hub Follow protocol Mode tariff and proposition details loaded onto Elec meter Ack and IHD details sent Welcome message displayed Bind pair Elec meter No Follow protocol Yes Y Record signals amp Connect to Head End Yes create Zigbee devices to tt join p Install Electricity meter power up and trigger to Source Electricity meterl join HAN Accepted Yes Install Gas meter power up and trigger to Source Gas meter join HAN Accepted Yes Source IHD Accepted Yes y Mode tariff and proposition details loaded onto Gas meter Ack metering de
61. llet ECV EDGE Emergency credit PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 Fixed conditions used to express the volume of gas independently of the measurement conditions In the UK they are T 15 C P 1013 25 mbar absolute A tariff structure that uses tier thresholds with different unit prices during a billing period British Summer Time Main constituent parts that make up a smart metering system e g gas and electricity meters communication hub IHD Calling Line Identity Commercial Meter Operator Code of Practice Critical Peak Pricing an independent temporary price change for electricity supply during a time of peak demand Consumer Payment Scheme Consumer service agent e g at a call centre End user of energy as supplied through a gas or electricity meter In the case of gas Gas as provided from the outlet of ECV into the consumer s premises via the smart gas meter In the case of electricity Electricity as provided from the outlet of the main service fuse into the consumer s premises via the smart electricity meter Calorific Value of gas Distributed Denial of Service A container of money funds held in the British Gas billing system via head end for each customer if appropriate The e Wallet can be topped up with additional funds when necessary Emergency Control Valve Enhanced Data for Global Communication One off extension of the value at which the consumer would normally be i
62. ly Note 1 Methods of interrupting the consumer s supply are described in section 11 they are referred to as shut off mechanisms throughout this document Note 2 It is accepted that failure of the shut off mechanism itself may cause a restoration but this risk may be minimised with appropriate precautions Also see clause 11 8 The smart metering system shall be designed such that if a meter has interrupted the consumer s supply the restoration of this supply cannot occur without the local intervention of the consumer Where a loss of supply has occurred for reasons outside of the control of the meter e g network failure the meter shall retain the setting of the shut off device prior to the supply loss when the supply is restored Flammability All external surfaces of components shall not support combustion The material shall have a flammability rating of V 0 in accordance with BS EN 60707 Case materials shall be subjected to the flame test to BS EN 60695 11 5 The flame test shall be applied to edges corners and faces of casings each for a period of 30 seconds Intrinsic safety requirements Gas meters shall meet as a minimum the requirements for use in a hazardous area classification zone 2 ATEX category 3 as defined in BS EN 60079 10 1 5 3 2 6 1 6 1 1 6 1 2 6 1 3 6 1 4 6 1 5 6 1 6 6 1 7 6 1 8 6 1 9 6 1 10 6 1 11 PR_SMART_PART1_GENREQ FINAL V4 0 2010 03 29 Any part of the sma
63. ly for a minimum of 10 000 operations b It remains unused for up to ten years before operating Any failure of the shut off mechanism to operate shall generate a fault event that shall be transmitted to the head end system see section 18 Any failure of parts within a meter shall not cause the shut off mechanism to open The manufacturer shall provide written evidence that shows the design methodology used to satisfy this requirement It shall be possible for a consumer to self restore in an interruption scenario only where they are a pay as you go consumer and have been interrupted due to a lack of credit or emergency credit and have satisfied the rules in section 13 37 The metering system shall record the time date and trigger information of any changes to the interrupt restore status of any switch es and or valve s FUNCTIONALITY AND CONFIGURATION The smart metering system shall be configurable locally or remotely by authorised personnel This shall allow the following information to be read suppressed and or updated as appropriate for the operating mode of the meter on both meter and IHD displays a Tariff structure e g to change Time of Use ToU register parameters b Tariff rates C Tariff tiers d Pricing information e Time period for block tariffs see clause 16 19 f Date and time g Daylight saving hours between 0 and 3 hours adjustment h Debt see clause 13 21 12 2 12 3 12 4 j k
64. ly to recovery of emergency and friendly credit a Type 1 b Type2 C Type 3 The names of the types of debt shall be configurable remotely and locally by authorised personnel 13 24 13 25 13 26 13 27 13 28 13 29 13 30 13 31 13 32 13 33 13 34 PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 The recovery hierarchy of types of debt shall be as follows 1 Type 1 2 Type2 3 Type 3 Debt recovery shall be configured to be taken using three methods a Collect a set amount over Days Week Month with monies recovered at configurable time day week month time based recovery b Collect a configurable percentage of the credit balance where this is less than the debt recovery amount due consumption balance based recovery C Re attempt debt collection of a defined amount over a configurable amount of times until the debt recovery is up to date Each type of debt can be recovered using any of the detailed methods of debt recovery in section 13 25 The application of the debt recovery rates shall commence at a configurable start date HHMM DD MM YY and recovered monies shall be subtracted from a configurable debt balance The recovery shall continue at the specified rate until the debt balance for that debt type has been reduced to zero The three types of debt shall be displayed on the meter and IHD with associated debt register remaining debt recovery rate and time and totalised debt The
65. mart Energy to allow interoperability with other components provide the application security and then adopt upgrade to Zigbee IP which will introduce MAC security All security methods including keys shall be configured to allow the transfer of assets one or both meters or other components on the HAN from one supplier to another This transfer shall itself be secure Any components using Power Line Carrier PLC for local communications shall use encryption and authentication Note This is likely to impact on the Standard governing PLC and smart components All types of debugging JTAG Joint Test Action Group shall be removed prior to delivery Sniffing tapping plaintext keys passwords certificates shall not be possible via the bus or other interface All methods of communicating with the meter locally that involve data collection functionality or configuration changes or any other function that may affect the functioning of the meter shall only be possible by authorised personnel and such changes shall a Require the breaking of appropriate mechanical seals and or b Require the use of an hand held terminal with out of band password communication or require the input of a password where an hand held terminal is not available 1 All passwords shall be strong and complex see Appendix F for definition 2 Passwords shall be re settable remotely please refer to Appendix F for requirements C Require the use of hashed a
66. n relevant system Message s transferred Re tries on failur Meter measures consumption Load limiting tariff ETD reached Transfer account back to standard tariff or alternative LTC and message sent Message to IHD to display Load Limiting OFF and details of new tariff applied New tariff details loaded onto meter load limiting suppressed Message s transferred ___Re tries on failure Ack sent to confirm changes Ack sent to confirm changes Notification received new tariff applied Message s transferred Re tries on failure 257 PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 C 6 Homemove Move out Notification of Homemove received from IHD online call centre etc Notification of Homemove sent Schedule IHD message Schedule meter to send Schedule meter to send x days in advance read on effective date read on effective date Message s transferred Re tries on failure S message effective date today Yes Yes Y Y Send read data to Send read data to MDUS MDUS Display pre notification message you are due to move on xx XX XXXx please remember to inform BG if this date changes Read data applied to relevant table Today s date or Retrospective Message s transferred Re tries on failure Query MDUS
67. nd system Such cross checking may be by comparison of the serial numbers described in clause 6 3 2 MAC addresses MPRN etc This will also include supplier codes to avoid the accidental decommissioning of meters not belonging to British Gas D 2 Handheld Terminal Engineer codes Usernames and Passwords D 2 1 D 2 2 258 Access to the metering system and configuration should be controlled by the use of a unique engineer code Additionally there should be roles and profiles to enforce the rights permissions and abilities of the user to conduct specific activities i e a profile to PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 1 read data 2 change the configuration of the metering system APPENDIX E PASSWORDS F1 Component and Privileged Access Codes Passwords b c d e f g Passwords should be changed every 60 days where they are for the execution of privileged actions e g required for the local and remote configuration of smart metering components It should be unique across all components Passwords must be kept confidential and distributed securely to only those that have a need to know for the period required to complete the job e g when an engineer installs a meter set Passwords must be changed whenever there is a possibility of disclosure Passwords must have a minimum length of 10 lowercase and uppercase alpha and numeric characters at least two of which must be non consecutive num
68. nd thus valid data please refer to Appendix F for definition d Shall be protected and unique e Store details of any changes made together with a date and time stamp 2 PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 17 2 22 17 2 23 18 18 1 18 2 18 3 18 4 18 5 18 6 18 7 18 8 18 9 28 It shall be possible to temporarily disable HAN and or WAN communications under head end control following the detection of a security breach that may compromise the head end Full smart meter system functionality shall be recoverable under local or head end control following the disabling of communications described in clause 17 2 22 EVENTS EXCEPTIONS ALERTS FAULTS AND TAMPERS The smart metering system shall be capable of recognising a number of exceptions or events upon which it shall a Recognise that an event has occurred b Record the event c Take configurable action System events alerts or faults or tampers shall be date and time stamped and stored in non volatile memory in an alert log or logs in the component where the alert originated In the case of a component constructed in a modular fashion the events described in clause 18 2 shall also include a means of identifying the individual module where the alert originated Event logs shall be capable of recording and storing event data sufficient to support both business processes and meter warranty management through the life of the m
69. nents shall follow a structured design following a functional design plan This structure should be available to British Gas Software should follow the WELMEC Software Guide 7 2 as appropriate Software should be verified by independent consultants and their report provided to British Gas All software shall be identified by version number and version control processes shall be used by the manufacturer The manufacture shall employ quality control processes All such process shall be accredited by independent means as meeting the requirements of BS EN ISO 9001 BS EN ISO 9002 BS ISO IEC 90003 or equivalent The manufacturer shall supply all necessary software that may be required to be installed on laboratory computers to assist in the evaluation of the smart metering system Non metrological software in the metering system shall not affect the operation of the metrology within the meter Firmware The smart metering system shall support remote and local firmware upgrades including roll back where an update fails All major meter system components which are capable of firmware upgrade shall have the facility to do so remotely and independently of each other this includes but is not limited to mobile communications firmware Zigbee firmware and tariff capabilities Memory capacity shall be sufficient to account for the loss of memory capacity through the warranted life of the meter without loss of meter functionality It shall no
70. nged Indicates that the limiter threshold has been changed Valve alarm Indicates that a valve alarm has been registered Maximum demand value exceeded indicates that the maximum demand value has been exceeded Under voltage an under voltage was detected Over voltage an over voltage was detected Voltage normal indicates voltage normal again e g after an over voltage Profile cleared indicates one or more profiles were cleared B 3 Software firmware B 3 1 B 3 2 B 3 3 B 4 B 4 1 B 4 2 B 4 3 50 Firmware ready for activation Indicates that the new firmware has been successfully downloaded and verified i e it is ready for activation Firmware activated Indicates that a new firmware has been activated Patch failure Patch cannot be executed Tariffs and billing ToU activated Indicates that the passive ToU has been activated 8x8 tariff activated Single rate tariff activated B 4 4 B 4 5 B 5 Bpod B 5 2 B 5 3 B 5 4 B 5 5 B 5 6 B 5 7 B 5 8 B 5 9 B 5 10 B 5 11 B 5 12 B 5 13 B 5 14 B 5 15 B 5 16 B 5 17 PR_SMART_PART1_GENREQ FINAL V4 0 2010 03 29 Asynchronous billing period reset An asynchronous billing period reset has occurred i e manual billing reset or billing reset via command Synchronous billing period reset An internal scheduled billing reset occurred Faults and errors Replace Battery Indicates that the battery shall
71. nterrupted It is controlled from the head end system AS PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 ESMA ESP ETSI Exception Fault FIFO Firmware FIT GMT GPRS GSM HAN Head end system HHT IHD IP address Installer 46 European Smart Metering Alliance Energy Services Portal European Telecommunications Standards Institute Difference between data held within a component and that held within the head end system e g a meter records it is configured with software VO 9 but the head end system records the meter as using V1 0 Failure within a component such as to compromise its performance This may be minor e g a temporary communications failure or major e g a gas meter battery about to expire First In First Out Computer instructions and data that is stored in non volatile memory and which cannot be changed during the normal operation of the component in which it resides Note So called firmware updates may be regarded as an abnormal mode of operation that occurs infrequently Feed in Tariff an associated tariff based on the cost per unit of electricity that is exported via the primary meter Greenwich Mean Time General Packet Radio Service Global System for Mobile communications Home Area Network Office based system including databases etc that hold all meter and billing information and software that can interact with the consumer s smart meter system Hand Held Termina
72. o manufacture g How long before manufacture commences this information is required 24 3 Alerts information 24 3 1 The manufacturer shall provide a separate and complete list of alerts reported by the metering system components HAN and WAN communications Each list item shall detail a Report type fault alert exception b Report code C Code description d Originating component e Cause s of the report code 2275 PR SMART PART GENREQ FINAL V4 0 2010 03 29 24 3 2 24 3 3 24 4 24 4 1 24 5 24 5 1 24 5 2 24 5 3 25 25 1 25 2 25 3 E f Recommended corrective action s g Who should carry out the corrective action s h Decision tree to identify the root cause of each alert i At what point in each decision tree a site visit is required to resolve the root cause of a fault The manufacture shall provide outline fault diagnostic information Note A single fault can often generate several fault codes In such cases analysis of the code set can show that many codes are irrelevant in such cases the requirement is sufficient information to identify the key fault It is expected that some on board fault diagnostics may be carried out in the meters also see clause 18 10 The manufacturer shall provide detailed instructions to enable simple repairs to be carried out Note It is accepted that only simple repairs may be carried out on site and no repairs relating to metrology will ever be attemp
73. office is ok again Clock Daylight saving time enabled Indicates the regular change from and to daylight saving time The time stamp shows the time before the change This event is not set in case of manual clock changes and in case of power failures Daylight saving time disabled Indicates the regular change from and to daylight saving time The time stamp shows the time before the change This event is not set in case of manual clock changes and in case of power failures Clock adjusted old date time Indicates that the clock has been adjusted The date time that is stored in the event log is the old date time before adjusting the clock Clock adjusted new date time Indicates that the clock has been adjusted The date time that is stored in the event log is the new date time after adjusting the clock Clock invalid Indicates that clock may be invalid i e if the power reserve of the clock has exhausted It is set at power up Decommissioning Power down Indicates a complete power down of the component Please note that this is related to the component and not necessarily to the network B 10 Discount B 10 1 Discount applied indicates that a discount has been applied successfully to the consumer s meter B 11 DNO data B 11 1 B 11 2 Eod Power factor below threshold Indicates power factor has fallen under the set threshold for a period longer than the delay time Power factor above thresho
74. on report generated for manual intervention until communication with the metering component s can be established Request for technical and read data No comms 7 Previous technical and read data sent EE comms Re tries for x no times Re tries for x no times Re tries for x no times Technical and read data attributed to data attributed to SERLO s data table data attributed to with read type and customer s data table rar customer s account origin i e from Central Comms unit Communication ttempted with metering Send tariff data to component s Central Comms Hub Technical and read Technical and read Tariff data downloaded to meter component s and read data requested Set scheduled read date and cycle Tariff data loaded Tariff data loaded Exception Due for bus bus esee available available intervention Real time read data stored with read type and origin i e polled Real time read data used for validation purposes Yes No Welcome message displayed elcome message sen with all relevant data 60 PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 C 9 Leave Schedule
75. ousehold cleaners Noise Components should not emit an audible sound level including ultrasonic that may affect domestic pets that may cause a nuisance in a domestic environment unless it is signalling to indicate a specific agreed function but see section 8 PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 8 8 1 8 2 8 3 8 4 8 5 8 6 8 7 8 8 8 9 0 ERGONOMICS The operation and interaction with smart metering systems should be possible by persons with specialist needs in particular those suffering from reduced vision hearing or manual dexterity Note It is appreciated that persons with severe impairment of sight will be unable to fully interact with the displays on both the meter and IHD Components shall incorporate means to differentiate important controls e g buttons that are used to restore the supply also see section 11 by touch Note This may be by Braille or similar raised surfaces All button presses should be accompanied by audible tones to assist in the confirmation that the actuation has been satisfactorily achieved also see section 11 Messages that are displayed on meters shall be a combination of symbols or simple text in English A variant of the smart meter system is one where the IHD should use the Welsh language Other languages may be considered with the written agreement of British Gas Messages displayed on components other than meters shall as a minimum be a combination
76. racting with components particularly meters to enable the local commissioning procedures to be undertaken As a minimum the HHT software shall a Interpret read bar coded serial numbers and installation code from each of the meter system elements b Transfer the installation codes for each component to the comms hub via a secure link C Highlight for the purposes of managing the installation process key stages in the installation process including the set up of the metering system d Report on exceptions to the installation process and guide installers through resolution The system should be able to diagnose faults during the commissioning process also see clause 24 3 Decommissioning Two types of decommissioning are considered complete removal of a component and Change of Supplier CoS Loss In both cases a retrieval of all consumption readings credits and debits held on an individual meter together with the details of the component being decommissioned shall occur and the data sent directly to the head end system In the case of a removal of a component this data may also be retrieved locally using the HHT Removal of Metering System or Individual Component Authorised personnel shall be able to decommission a smart metering system either as a whole or each component separately Note In the case of a change to an IHD this may be carried out by the consumer subject to British Gas authorisation Changing the Meter Mod
77. ransferred Bill message displayed on IHD Bill detail message sent to IHD essage s transferred Re tries on failure BEER PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 C 4 Critical Peak Pricing Process Map CPP pricing structure added to tariff tables CPP pricing structure added to tariff tables Day to day tariff switched for CPP tariff CPP pricing structure added to tariff tables Day to day tariff switched for CPP tariff amp read returned Message s transferred Re tries on failure CPP tariff switched for Day to day tariff Read at time of switch returned to MDUS Day to day tariff Switched for CPP tariff amp read returned EDGE CPP tariff switched for Day to day tariff amp read returned Read at time of switch returned to MDUS CPP tariff switched for Day to day tariff amp read returned Message s transferred Re tries on failure Read at time of switch returned to MDUS Message s transferred Re tries on failure Read at time of switch returned to MDUS Message s transferred Re tries on failure CPP pricing structure added to tariff tables Table s updated with CPP tariff ON marker Table s updated with CPP tariff OFF marker Read at time of switch applied to read table s
78. re accepting emergency credit The level of emergency credit and non interrupt periods shall be configurable by authorised personnel default value of 2 Where supply is enabled at the moment of entering a non interrupt period supply shall continue during the non interrupt period regardless of the credit balance of the meter In the 17 PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 13 15 13 16 13 17 13 18 13 19 13 20 13 21 13 22 13 23 18 case of a meter that is already interrupted the non interrupt period shall not cause the meter to restore the connection All meter functionality shall be available irrespective of whether there is a credit balance on the meter Note This means that a meter will continue to accurately measure consumption receive local and remote commands and follow them register alerts maintain all communications channels and allow mode switching if so commanded etc In the case where the lack of credit has caused the shut o ff device to operate all the meter s functionality will still be in operation including local remote configuration of the meter by authorised personnel but the meter will not be allowing the consumption of energy When operating in pre payment PAYG mode meters shall provide all functions currently available for pre payment PAYG consumers including but not limited to a An emergency credit facility b Manage the available credit on the meter based on the
79. require a site visit to revert to previous versions of firmware The firmware version should be stored within the device and be made available to the Head end system if requested EMC Components including modules and any remote transducers or actuators that the smart metering system may incorporate shall meet the requirements relating to Class E1 as defined in the Measuring Instruments Directive i e instruments used in locations with electromagnetic disturbances corresponding to those likely to be found in residential commercial and light industrial buildings Components shall be tested using the following pass fail criteria a Before each test the components shall be fully functioning and working correctly and all displays shall be displaying b Influence quantities appropriate for each component See EMC in the other four parts of this document series shall be applied in turn and the components shall remain fully functioning and working correctly and all displays shall remain displaying C After the application of each of the influence quantities the components shall remain fully functioning and working correctly and all displays shall remain displaying Where radio transmitting devices are included in a component due consideration shall be taken of any potential interference they may cause with the basic operation of the component itself and any other component located nearby Note This also includes the possibility th
80. ressures measured at the inlet and outlet connections of a gas meter whilst the meter is operating Pseudo Random Number Generator EN 62052 11 2003 defines this as meter with a case of insulating material in which protection against electric shock does not rely on basic insulation only but in which additional safety precautions such as double insulation or reinforced insulation are provided there being no provision for protective earthing or reliance upon installation conditions Means by which the volume increments measured by a gas meter at a set of conditions of P T and Z are converted to volume increments as if it were operating at base conditions The maximum flowrate the highest flowrate at which a gas meter provides indications that satisfy the requirements regarding MPE The minimum flowrate the lowest flowrate at which a gas meter provides indications that satisfy the requirements regarding MPE Random Access Memory Following the loss of communications between components e g due to a fault the automatic re establishment of pairing Rate Remote communication SED SEP SIM Smart Meter Variant Code SMS SSD T Tariff Tamper Tier ToU Vend Code War dialling war driving WAN WELMEC PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 A means of charging differing amounts for energy consumed based on the time of day the consumption occurred i e units consumed between midnight an
81. rs 2 Tier threshold rules Tiers 3 Cost per unit for cumulative register for Rate register Tier b Cumulative readings cumulative costs and cost per unit registers shall be arranged as a matrix of 8 x 8 as illustrated in Figure 3 C The meter shall be capable of recording up to 50 ToU switches with the following parameters 1 Start time definable in hours and minutes thus a minute is the smallest interval possible 2 ToU register to use 3 Days of week 4 Months of year or from DD MM a mapping uses one or other method but both shall be possible 5 Use of an auxiliary relay switch i e a capability to control switched loads in line with ToU rate switching times electric only d Tier thresholds are values at which the accumulation of units moves to the next tier These thresholds are valid over the threshold period e Tier threshold periods shall be capable of being smaller than billing periods e g a tier threshold of five units daily may be applied to a monthly billed consumer f Tier threshold values shall be capable of referring to a rule value and period e g a tier threshold value could be the total of Registers 1 and 2 month to date EH 1 NN NEM h h I 6 HM h h NN h J Figure 3 Illustration of rate and tier combination 24 16 14 16 15 16 16 16 17 16 18 16 19 16 20 16 21 16
82. rt metering system that is directly wired to and or is physically attached to or is intended to be within 150 mm of the gas meter shall meet as a minimum the requirements for use in a hazardous area classification zone 2 ATEX category 3 as defined in BS EN 60079 10 1 GENERAL REQUIREMENTS General The overall concept of the British Gas smart metering system is for gas and electricity meters to include additional functionality i e beyond that of simply recording the cumulative consumption of gas and electricity Such additional functionality shall include two way communications with a head end system via a Wide Area Network WAN This should be achieved via a local comms hub located in the consumer s premises see section 9 The smart metering system shall be designed to have an operational life of at least 20 years Meters shall be capable of storing data locally e g meter readings which shall be uploaded to the head end system at either pre configurable times and recurrences push or when prompted by a command pull The smart metering system shall be capable of supporting two different suppliers in the same home as well as switching between suppliers in smart mode Each individual supplier s data shall be stored securely and shall not be made available to the other supplier The smart metering system shall be capable of supporting WAN communications to all mainland UK properties The smart metering system shall support Gen
83. t be possible to change any part of the firmware relating to the metrological functionality either accidentally or intentionally 21 2 4 21 2 5 21 2 6 21 2 7 21 2 8 21 2 9 22 22 1 22 2 22 3 PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 With the exception of metrology firmware it shall be possible to both patch upgrade and completely over write a component s firmware All firmware upgrades shall only be possible by authorised personnel and following the use of a password this applies to both locally and remotely applied upgrades The firmware upgrade process should incorporate a mechanism whereby there is a roll back to the existing firmware during the process and given this the existing firmware shall be retained within the smart metering component until the new version is successfully installed Following a firmware upgrade the affected component part of the smart metering system shall a Automatically restart without a site visit to restart the component b Confirm status to the head end system at configurable points through the process Following a firmware upgrade the affected component part of the smart metering system shall indicate it is functioning correctly C If required restart following a remote or locally initiated manual command In the event of a failure to upgrade the firmware shall revert to the original version either automatically or by virtue of a remote command It shall not
84. tails and current read sent Mode tariff and proposition details loaded onto Elec meter Ack metering details and current read sent Re tries on ai Confirms all installs amp Gas meter and IHD details to Head End v Send all relevant mode tariff and proposition details to meter s Message s transferred Message s transferred ___Re tries on failure e e Details of Ack s recorded Welcome message sen to IHD a Message s transferred Re tries on failure Table for customer and Record reason for failure Record reason for failure Record reason for failure Record reason for failure Order of sourcing and install could be different Update all internal external systems with metering details updated with reads new metering details 53 PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 C 2 Update Tariff Rate Process Map Tariff details updated to IHD Gas only or dual fuel Check tariff EFD Tariff message sent to enabled by Gas meter Today s read returned by Gas meter Elec only or dual fuel Check tariff EFD Yes Tariff message sent to enabled by Electricity meter Today s read returned by Electricity meter Check tariff a
85. ted Commissioning documentation The manufacturer shall provide detailed installation and commissioning process documentation for use by meter workers as part of their training and during field operations This shall include full documentation for the HHT User operating manual An operating manual in digital form for use by the consumer for the meter and IHD in a clear and easily understood form shall be provided These instructions shall be in multiple languages as agreed with British Gas Jargon and unfamiliar terms should not be used or where absolutely necessary should be kept to a minimum and should be defined within the manual The manufacturer shall provide detailed and complete end user manual content for consumer operation of all consumer provided functionality The user manual should cover all meter system components a Electricity meter b Gas meter C IHD d Comms hub e Linking of these components to the HAN This documentation shall form the core of British Gas branded consumer manuals PACKAGING AND STORAGE Packaging shall not be liable to cause injury to operatives Packaging should be recyclable wherever practicable also see clauses Error Reference source not found and 4 3 No single package shall exceed 25 kg in weight 25 4 25 5 25 6 25 7 25 8 25 9 25 10 25 11 25 12 PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 Following manufacture all smart metering components
86. ter system shall itself be capable of applying the consumer s tariff structure to the gas and electricity consumptions and to decrement the pre payment PAYG mode credit balance Whichever type of communications has been lost the IHD shall immediately display a message telling the consumer to contact a service centre number after a configurable time has elapsed with no restoration of communication also see section 18 Where communications from a meter s to the head end are lost the smart meter system shall be capable of applying configurable rules to govern the switch to pre payment PAYG mode and eventual interruption of supply in the event that the loss of communications continues beyond a configurable period set per consumer treatment flag value Once the loss of communications has exceeded the configurable period as per the consumer s treatment flag the rules are to be applied as follows a An alert shall be triggered dependent on the type of communications loss There are two scenarios 1 Loss of WAN this shall cause i An alert to be sent to the meter s and a message to be sent to the IHD stating failure to re establish communication ii An alert to be stored by the comms hub for future transmission to the head end 2 Loss of HAN this shall cause an alert in the comms hub which shall be sent immediately to the head end b If the meter s is not in pre payment PAYG mode it shall be switched to pre payment PAYG mode a
87. thout credit or emergency credit no vends have taken place the consumer except for vulnerable consumers shall be interrupted To restore the supply after an interruption sufficient credit shall be provided to a Repay the full value of all emergency and friendly credit used b Repay any charges where applicable that were generated whilst emergency credit was active such as debt recovery c A positive credit balance is on the interrupted meter after the above deductions It shall be possible for a consumer to see the payment history The payment history retained in meters and being capable of being displayed locally in the meter and IHD shall as a minimum include a The last five payments in pre payment PAYG mode b Dates times and amounts associated with the last five payments Meters shall support as a minimum balances in the range of and including 9 999 999 999 It shall be possible to change the maximum possible credit balance remotely subject to the constraints of the size of the credit balance field Meters shall support as a minimum pre payment PAYG payment transactions vend the range of and including 9 999 999 999 It shall be possible to change the maximum possible credit balance remotely subject to the constraints of the size of the pre payment PAYG payment transactions vend field Meters shall hold a 19 digit unique number payment reference number of pre payment PAYG PAN issued by head end
88. time or alternatively components shall have a means of having immediate access to a central clock within the local smart metering system It shall be possible to update the real time clock s from the head end system Clocks shall be provided with a back up battery This shall allow the clock to continue working in the event of a power loss due to a power cut electricity or the removal of a battery during routine maintenance gas or running down due to being disconnected from a power source IHD The back up battery shall provide sufficient power to sustain the clock for not less than one month continuously with an overall back up time of 12 months and a service life the same as the component in which they are situated i e where they have not exhausted their capacity they should still be capable of operation at the end of the service life of the component Note 1 Back up batteries may also be used for other purposes and these will be described in each of the other parts to this series of documents In such cases battery life will need to be calculated using load information for the other purposes in addition to the requirements of clause15 3 Note 2 Back up batteries shall support scenarios where the electricity meter and IHD are without power for sustained periods of time e g pre installation storage The clock accuracy shall be as follows a Relative time MPE 0 0196 b Absolute time MPE 3 minutes Note 1 Relative
89. ual to the stored checksum Usually indicates fraud i e measurement part of the firmware has been tampered B 6 Tampers B 6 1 B 6 2 B 6 3 B 6 4 B 6 5 Terminal cover removed Indicates that the terminal cover has been removed Terminal cover closed Indicates that the terminal cover has been closed Strong DC field detected Indicates that a strong magnetic DC field has been detected No strong DC field anymore Indicates that the strong magnetic DC field has disappeared Meter cover removed Indicates that the meter cover has been removed Le PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 B 6 6 B 6 7 B 6 8 B 7 B 7 1 B 7 2 B 7 3 B 7 4 B 8 B 8 1 B 8 2 B 8 3 B 8 4 B 8 5 B 9 B 9 1 Meter cover closed Indicates that the meter cover has been closed n times wrong password Indicates that a user tried to gain access with a wrong password intrusion detection Fraud attempt indicates a fraud attempt has been attempted Communications Communication error HAN Indicates a communication problem with the paired IHU or any other home area components Communication ok HAN Indicates that the communication with the paired IHU or any other home area components is ok again Communication error Remote Com Indicates a communication problem with the backhaul office GSM GPRS or PLC Communication ok Remote Com Indicates that the communication with the backhaul
90. ughout this document Examples of components are but not limited to a Gas meters b Electricity meters C In home displays IHDs d Comms hubs 1 3 All clauses throughout this document apply in principle to all components making up a smart metering system in a consumer s home In some cases a component may have specific 2 1 3 1 4 1 4 2 PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 requirements in such cases further details can be found in the other parts of this document series as listed in the introduction REFERENCES This suite of documents makes references to the documents listed in Appendix A Unless otherwise specified the latest edition of the documents applies including all amendments DEFINITIONS The requirements and definitions applying to this suite of documents are listed in O COMPLIANCE WITH EUROPEAN COMMUNITY DIRECTIVES Components and where applicable any ancillary equipment e g transducers and commissioning equipment etc shall comply with all relevant European Directives in force at the time of purchase or that will come into force within 12 months from the purchase date Current Directives that may be relevant include a ATEX Equipment explosive atmospheres 94 9 EC b EMC Electro Magnetic Compatibility 89 336 EEC C LVD Electrical equipment designed for use within certain voltage limits Low Voltage Directive 2006 95 EC d MID Measuring Instruments Directive 2004 22 EC
91. upersedes the 8x8 tariff structure whiles the CPP valid from and to time period is in effect electric only Export Tariffs The primary electricity meter shall have a separate register to record net export and separately display gross generation as an energy value kWh Export tariffs shall credit consumer s balance on the meter via a negative rate when operating in pre payment PAYG mode There shall be associated discounts based on gross generation and this shall be applied to the balance on the meter when in pre payment PAYG mode or a discounted value on the IHD when operating in credit mode EDS PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 17 17 1 17 1 1 17 1 2 17 1 3 17 1 4 17 1 5 17 2 17 2 1 17 2 2 17 2 3 17 2 4 17 2 5 17 2 6 17 2 7 17 2 8 EDGE SECURITY Mechanical anti tamper measures In addition to the metrological seals described in Parts 2 and 3 Gas meters and Electricity meters Display components shall be designed to resist any form of tampering This shall also include any modules that may be used in the assembly of any component of the smart metering system see section 6 4 Anti tamper measures shall include as appropriate the use of mechanical security seals and anti tamper switches that generate tamper alerts that shall be communicated to the head end system Where compartments are used e g for batteries comms modules etc the compartments Shall be prote
92. urrent and future tariff simultaneously This is to ensure that a mode switch initiated by the meter itself e g due to a loss of communications will allow the meter to run correctly in the new mode without intervention from the head end systems By default meters shall display the current mode of operation In addition this mode of operation shall also be shown on the IHD where available Note An IHD component may not be present in some installations SES PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 11 TA en d 11 2 11 3 11 4 11 5 11 6 11 7 11 8 11 9 11 10 12 12 1 14 INTERRUPT AND RESTORE CAPABILITY The smart metering system shall support interruption and re enabling of the consumer s gas or electricity as appropriate supply on local or remote instruction from authorised personnel Note This feature is referred to a shut off mechanism throughout these documents The smart metering system shall be designed to ensure any restoration of supply meets the safety requirements of clause 5 1 5 The meter display shall function when the consumer s supply is disabled and shall indicate the status of the shut off mechanism The status of the shut off mechanism shall be transmitted to the IHD The shut off mechanism shall be inaccessible to the consumer The shut off mechanism shall be designed to operate reliably throughout the life of the meter assuming a It is used to interrupt the supp
93. ut a HHT by authorised personnel Hand Held Terminal HHT Note It is assumed that the metering engineer has a Hand Held Terminal HHT that has barcode reading wireless communication and optical probe functionality However all processes are required to be able to be carried out without a HHT by authorised personnel The manufacturer shall specify the software and communication interfaces required to complete the following operations a Determine WAN signal quality e g mobile phone operator s signal quality b Aid the placement of and gauge the effectiveness of any external WAN antennas that may be required in areas of poor signal quality c Determine the signal quality existing between the comms hub and all meters and the IHD in both directions 20 4 2 20 4 3 20 5 20 5 1 20 5 2 20 5 2 1 20 5 3 20 5 3 1 20 5 3 2 PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 d Determine the signal quality existing between the IHD and all meters in both directions e Aid the placement of and gauge the effectiveness of any additional signal boosters or repeaters by identifying any signal dead spots Note 1 It is expected the HHT will include a display for alpha numeric and graphical information Note 2 Only where all communications functionality has been satisfactorily proven will a smart meter system be installed In addition to the requirements of clause 20 4 1 the HHT software shall be capable of inte
94. ve gas atmospheres Part 10 1 Classification of hazardous areas BS EN 60529 BS EN 60695 11 5 BS EN 60707 BS EN 60730 1 BS EN 60950 1 BS EN 61000 4 2 BS EN 61000 4 3 BS EN 61000 4 4 BS EN 61000 4 5 BS EN 61000 4 6 BS EN 61000 4 8 BS EN 61000 4 9 BS EN 61000 4 14 BS EN 61000 4 28 BS EN 61036 BS EN 62056 21 BS EN ISO 9001 PR_SMART_PART1_GENREQ FINAL V4 0 2010 03 29 Specification for degrees of protection provided by enclosures IP code Fire hazard testing Test flames Needle flame test method Apparatus confirmatory test arrangement and guidance Flammability of solid non metallic materials when exposed to flame sources List of test methods Automatic electrical controls for household and similar use General requirements Information technology equipment Safety Part 1 General requirements Electromagnetic compatibility electrostatic discharge immunity test Electromagnetic compatibility radiated RF electromagnetic immunity test Electromagnetic compatibility Testing and measurement techniques Electrical fast transient burst immunity test Electromagnetic compatibility Testing and measurement techniques Surge immunity test Electromagnetic compatibility Testing and measurement techniques Immunity to conducted disturbances induced by radio frequency fields Electromagnetic compatibility power frequency magnetic filed immunity test
95. ween meters and the IHD where the two are located a long distance apart All communications shall employ means by which the receipt of any data stream shall cause an acknowledge signal where required and configured to be transmitted back to the original sender including where the message is received in the comms hub for eventual re transmission to other components The smart metering system shall incorporate a mechanism whereby in the event of a communications failure it will re try The timings and number of re tries shall be remotely configurable by authorised personnel and each component shall have different communication retry rules l e A continuous retry is required from the communication hub whereas the gas meter need only retry for a configurable amount of time Where communications to the head end system have been lost the configurable rules given in section 12 7 shall be applied Each component within the smart metering system should be capable of responding in real time to remote commands Note It is accepted that this may not be possible in the case of gas meters because of the power constraints imposed by battery operation also see clause 19 1 11 The times when data exchanges are initiated shall be configurable by authorised personnel both locally and remotely In the case of gas meters provision shall be made to initiate an immediate and or pre determined time to wake up Examples of such a means include
96. ype mechanism for the adding of credit Meters and IHDs shall generate an audible sound and or visual message when running out of credit and it shall be possible to mute the sound The low credit value at which a warning is generated shall be configurable both locally and remotely with a default setting of 2 Just prior to reaching the low credit value as described in clause 13 6 the meter should obtain the latest credit balance position from the head end system Note This allows the head end System to react to the low credit scenario by checking the presence of an e Wallet and sending a credit where available Where for whatever reason the latest credit information as described in clause 13 7 is not obtained the meter shall continue to use the most current information held within its memory The meter shall be configurable such that when the meter is about to run out of credit it shall prompt the consumer to accept the use of emergency credit where this is available If this is not accepted nor credit added and is in an interrupt period the supply shall be interrupted also see clause 13 33 Meters shall generate visual message when running in emergency credit mode Note The visual messages described in clauses 13 5 and 13 10 are different to allow consumers to distinguish between them Meters shall communicate that emergency credit has been invoked to the IHD Meters shall have the facility to interrupt the supply befo
97. ystems Data transmission equipment operating in the 2 4 GHz ISM band and using wide band modulation techniques Harmonized EN covering essential requirements under article 3 2 of the R amp TTE Directive Global System for Mobile communications GSM Harmonized EN for mobile stations in the GSM 900 and GSM 1800 bands covering essential requirements under article 3 2 of the R amp TTE directive 1999 5 EC Electromagnetic compatibility and Radio spectrum Matters ERM ElectroMagnetic Compatibility EMC standard for radio equipment and services Part 1 Common technical requirements Electromagnetic compatibility and Radio spectrum Matters ERM ElectroMagnetic Compatibility EMC standard for radio equipment and services Part 7 Specific conditions for mobile and portable radio and PR SMART PART1 GENREQ FINAL V4 0 2010 03 29 ancillary equipment of digital cellular radio telecommunications systems GSM and DCS EN 301 489 17 Electromagnetic compatibility and Radio spectrum Matters ERM ElectroMagnetic Compatibility EMC standard for radio equipment Part 17 Specific conditions for 2 4 GHz wideband transmission systems 5 GHz high performance RLAN equipment and 5 8 GHz Broadband Data Transmitting Systems EN 301 489 24 Electromagnetic compatibility and Radio spectrum Matters ERM ElectroMagnetic Compatibility EMC standard for radio equipment and services Part 24 Specific conditions for IMT 2000 CDMA Dire

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