1.1.1 · Update Import Tariff (Primary Element)

18.1a · Where the target SMETS1 ESME does not support a Standing Charge (with its SMETS1 meaning) with an accuracy of greater than hundred thousandths of Currency Units (with its SMETS1 meaning) per day, the S1SP shall, where the Service Request specifies a StandingChargeScale (with its DUIS meaning) of -6 or less, create a SMETS1 Response indicating failure.

18.1b · Where the target SMETS1 ESME does not support prices in a Tariff TOU Price Matrix or Tariff Block Price Matrix (with its SMETS1 meaning) with an accuracy of greater than hundred thousandths of Currency Units (with its SMETS1 meaning) per kWh, the S1SP shall, where the Service Request specifies a PriceScale (with its DUIS meaning) of -6 or less, create a SMETS1 Response indicating failure.

18.1c · Where the target SMETS1 ESME does not support a Standing Charge (with its SMETS1 meaning) with an accuracy of greater than ten thousandths of Currency Units (with its SMETS1 meaning) per day and the StandingChargeScale (with its DUIS meaning) specified is -5, the S1SP shall round the Standing Charge value (with its SMETS1 meaning) down to whole numbers of ten thousandths of Currency Units (with its SMETS1 meaning) per day.

18.1d · Where the target SMETS1 ESME does not support a PriceScale (with its DUIS meaning) at a resolution greater than ten thousandths of Currency Units (with its SMETS1 meaning) per kWh and the PriceScale (with its DUIS meaning) specified is -5, the S1SP shall round down the value of all prices in the Service Request to whole numbers of ten thousandths of Currency Units (with its SMETS1 meaning) per kWh.

18.1e · Where the SMETS1 ESME or SMETS1 GSME does not support StandingCharge (with its DUIS meaning) that is larger than 32767 and the StandingCharge (with its DUIS meaning) is greater than this value, the S1SP shall repeatedly divide the value by 10 and increase the associated scale by 1 until the resulting value can be stored on the Device. The stored value shall be rounded down to the nearest integer if the value to store is no longer an integer after rescaling.

18.1f · Where the SMETS1 ESME or SMETS1 GSME does not support prices in the TariffTOUPriceMatrix or TariffBlockPriceMatrix (with their DUIS meanings) that are larger than 32767 and any of the values in TariffTOUPriceMatrix or TariffBlockPriceMatrix (with their DUIS meanings) is greater than this value, the S1SP shall repeatedly divide all the values by 10 and increase the associated scale by 1 until the all the resulting values can be stored on the device. The stored values shall be rounded down to the nearest integer if the values to store are no longer integers after rescaling.

18.1g · Where the target SMETS1 ESME does not support simultaneous setting of Tariff Type (with its SMETS1 meaning) of ‘Time-of-use’ and ‘Time- of-use with Block’ and where HybridTariff (with its DUIS meaning) is specified, the S1SP shall create a SMETS1 Response indicating failure.

18.1h · Where the target SMETS1 GSME does not support more than two seasons in the Tariff Switching Table (with its SMETS1 meaning) and GasSeasons (with its DUIS meaning) specifies three seasons, the S1SP shall create a SMETS1 Response indicating failure.

18.1i · Where the target SMETS1 GSME does not support the equivalent of wildcards in the SeasonStartDate fields or the Date field in a GasSpecialDay fields (with their DUIS meanings), the S1SP shall, where the Service Request specifies such wildcards, create a SMETS1 Response indicating failure.

18.1j · Where the Service Request specifies a StandingCharge (with its DUIS meaning) greater than 32767 millipence and the target SMETS1 GSME does not support such a value, the S1SP shall create a SMETS1 Response indicating failure.

18.1k · Where the SMETS1 ESME is capable of switching an Auxiliary Load Control Switch (with its SMETS2 meaning) Where the SMETS1 ESME is capable of switching an Auxiliary Load Control Switch (with its SMETS2 meaning) according to a schedule that may only be configured in conjunction with the configuration of the Tariff Switching Table (with its SMETS1 meaning); and (i) where TOUTariff (with its DUIS meaning) is present in the Service Request; (ii) where all DayProfile (with its DUIS meaning) elements reference the same two TOUPrice (with its DUIS meaning) indices and no others; (iii) those two TOUPrice’s (with its DUIS meaning) values differ; and (iv) where the Year of a Season StartDate (with their DUIS meanings) is given as a wildcard then the S1SP shall configure the ESME to have the effect that, the Auxiliary Load Control Switch is, for the applicable DayProfile(s), closed at the StartTime(s) that reference the TOUPrice with the lowest value and is open at the StartTime(s) that reference the TOUPrice with the highest value (all with their DUIS meanings). Where conditions (i), (ii) and (iii) are not met, then the S1SP shall configure the ESME to have the effect that the state of the Auxiliary Load Control Switch is open at all times.

18.1l · Where the SMETS1 ESME is capable of switching an Auxiliary Load Control Switch (with its SMETS2 meaning) according to a schedule that may only be configured in conjunction with the configuration of the Tariff Switching Table (with its SMETS1 meaning); and (i) where TOUTariff (with its DUIS meaning) is present in the Service Request; (ii) where all DayProfile (with its DUIS meaning) elements reference the same two TOUPrice (with its DUIS meaning) indices and no others; and (iii) those two TOUPrice’s (with its DUIS meaning) values differ; then the S1SP shall configure the ESME to have the effect that, the Auxiliary Load Control Switch is, for the applicable DayProfile(s), closed at the StartTime(s) that reference the TOUPrice with the lowest value and is open at the StartTime(s) that reference the TOUPrice with the highest value (all with their DUIS meanings). Where conditions (i), (ii) and (iii) are not met, then the S1SP shall configure the ESME to have the effect that the state of the Auxiliary Load Control Switch is open at all times.

18.1m · Where the target SMETS1 ESME does not support the setting of a tariff where: (i) the SeasonStartDate has a SpecifiedYear; (ii) the SeasonStartDate has a NonSpecifiedMonth; (iii) the SeasonStartDate has a NonSpecifiedDayofMonth, or a LastDayofMonth or a SecondLastDayofMonth; (iv) the SeasonStartDate has a SpecifiedDayofWeek; (v) any of the SpecialDays has a NonSpecifiedDayofMonth, or a LastDayofMonth or a SecondLastDayofMonth; (vi) any of the SpecialDays has a NonSpecifiedMonth; (vii) any of the SpecialDays hasa SpecifiedDayofWeek; (viii) the earliest StartTime (with its DUIS meaning) in each DayProfile (with its DUIS meaning) is other than midnight (UTC); (ix) where any of the StartTimes (with their DUIS meanings) are not the start of minutes 00 or 30 in any hour or (x) the order of the XML elements within the Seasons XML element is other than in ascending order of the SeasonStartDate (with their DUIS meanings) then the S1SP shall, where it receives a Service Request that does not meet these criteria, create a SMETS1 Response indicating failure.

18.1n · Where the target SMETS1 GSME does not support the setting of a tariff where: (i) the SeasonStartDate has a SpecifiedYear; (ii) the SeasonStartDate has a NonSpecifiedMonth; (iii) the SeasonStartDate has a NonSpecifiedDayofMonth; (iv) the SeasonStartDate has a SpecifiedDayofWeek; (v) any of the SpecialDays has a NonSpecifiedDayofMonth; (vi) any of the SpecialDays has a NonSpecifiedMonth; (vii) any of the SpecialDays has a SpecifiedDayofWeek; (viii) the order of the XML elements within the Seasons XML element is other than in ascending order of the SeasonStartDate (with their DUIS meanings) then the S1SP shall, where it receives a Service Request that does not meet these criteria, create a SMETS1 Response indicating failure.

18.1o · Where the target SMETS1 ESME does not support the setting of a tariff where: (i) the SeasonStartDate has a SpecifiedYear; (ii) the SeasonStartDate has a SpecifiedDayofWeek; then the S1SP shall discard any SpecifiedYear or SpecifiedDayofWeek values (with their DUIS meanings) and configure the Device as if those values were NonSpecifiedYear or NonSpecifiedDayofWeek.

18.1p · For such SMETS1 ESME, the S1SP shall set any prices, not specified in whichever of BlockTariff or TOUTariff (with their DUIS meanings) is present in the Service Request, to zero in its instructions to the Device.

18.1q · For such SMETS1 GSME, the S1SP shall, where BlockTariff (with its DUIS meaning) is present in the Service Request, set any prices, not specified in the Service Request, to zero in its instructions to the Device.

18.1r · Where the target SMETS1 GSME does not support the setting of a tariff where: (i) the SeasonStartDate has a NonSpecifiedYear; (ii) SeasonStartDate has a NonSpecifiedMonth; (iii) the SeasonStartDate has a NonSpecifiedDayOfMonth; then the S1SP shall, where it receives a Service Request that does not meet these criteria, create a SMETS1 Response indicating failure.

18.1s · Where the StandingChargeScale is different to the PriceScale (with their DUIS meanings) and the SMETS1 ESME does not correctly share that difference with HAN Devices then any HAN Device will incorrectly display the Standing Charge (with its SMETS1 meaning).

18.1t · Where the target SMETS1 ESME stores the Tariff Switching Table and the Non-Disablement Calendar (with their SMETS1 meanings) as one object whose capacity would be breached if the SwitchingTable (with its DUIS meaning) in the Service Request were to be stored, the S1SP shall create a SMETS1 Response indicating failure. This failure state may be resolved by resetting the Non-Disablement Calendar (with its SMETS1 meaning) as specified in clause 18.5(dd).

18.1u · Where a SpecifiedDayofWeek is not supported by the target SMETS1 GSME the S1SP shall set a NonSpecifiedDayOfWeek in all SeasonStartDates and SpecialDay elements, where either a SpecifiedDayOfWeek or a NonSpecifiedDayOfWeek (with their DUIS meanings) is specified in the Service Request.

18.1v · Not Used.

18.1w · Where, during the period of British Summer Time the target SMETS1 ESME is configured so that each StartTime (with its DUIS meaning) is one hour earlier than that specified in the Service Request, the switches between Tariff Registers (with its SMETS1 meaning) will be one hour earlier than specified in the Service Request.

18.1x · Where the PriceScale (with its DUIS meaning) is different to any configured Debt Recover Rates [1..2] scale (with its SMETS1 meaning) and the SMETS1 ESME does not correctly share that difference with HAN Devices, then any HAN Device will incorrectly display any of the Debt Recovery Rates [1..2] (with its SMETS1 meaning) where there is a difference.

18.1y · Where the PriceScale (with its DUIS meanings) is set to a value other than -5 and the SMETS1 ESME does not correctly share financial information with HAN Devices in such situations then, any HAN Device will incorrectly display Meter Balance, Time Debt Register[1...2], Payment Debt Register, Emergency Credit Balance, Emergency Credit Limit, Accumulated Debt and Emergency Credit Threshold (with their SMETS1 meanings).

18.1z · For such SMETS1 ESME, where: (i) the Service Request only contains TOUPrices with an Index less than or equal to 15 then the S1SP shall set TOUPrice with Index 1 to 15, not specified in the TOUTariff (with their DUIS meanings), to zero in its instructions to the Device; or (ii) the Service Request contains TOUPrices with an Index greater than 15 then the S1SP shall set TOUPrice with Index 1 to 48, not specified in the TOUTariff (with their DUIS meanings) to zero in its instructions to the Device and any HAN Device may incorrectly display any information.

18.1aa · Where the PriceScale (with its DUIS meanings) is set to a value other than -5 or the StandingCharge is set to a value other than -4 and the SMETS1 ESME does not correctly share financial information with HAN Devices in such situations then, any HAN Device will incorrectly display Meter Balance, Time Debt Register[1...2], Payment Debt Register, Emergency Credit Balance, Emergency Credit Limit, Accumulated Debt and Emergency Credit Threshold (with their SMETS1 meanings).

18.1bb · Where the target SMETS1 ESME does not accept non-zero Thresholds (with its DUIS meaning) when being configured to use Time-of-use Pricing (with its SMETS meaning); and (i) The Thresholds (with its DUIS meaning) provided in the Service Request are non-zero, then the S1SP shall send a SMETS1 Response indicating failure; or (ii) The Thresholds are not provided in the Service Request, then the S1SP shall configure the Device to apply zero to all Thresholds (with their DUIS meanings)

18.1cc · Where the target SMETS1 ESME does not support the setting of a tariff where: (i) the SeasonStartDate has a NonSpecifiedMonth; (ii) the SeasonStartDate has a NonSpecifiedDayofWeek; (with their DUIS meanings) then the S1SP shall create a SMETS1 response indicating failure.

18.1dd · Where the target SMETS1 ESME does not support the setting of a tariff where any SpecialDays has a SpecifiedDayOfWeek then the S1SP will replace any SpecifiedDayOfWeek with a NonSpecifiedDayOfWeek when configuring the Device.

18.1ee · Where the target SMETS1 ESME does not support the setting of a tariff with the SeasonStartDate (with its DUIS meaning) not containing absolute value for the Month or DayOfMonth of the SeasonStartDate (with their DUIS meanings) then S1SP shall create a SMETS1 response indicating failure.