2.3 · Update Debt

18.7a · Where the target SMETS1 ESME or SMETS1 GSME only supports update of the recovery period for Debt Recovery Rates 1 and 2 (with their SMETS1 meanings) when in Credit Mode (with its SMETS1 meaning) the S1SP shall ignore DebtRecoveryRatePeriod (with its DUIS meaning) if the Device is already in Prepayment Mode (with its SMETS1 meaning) and return a SMETS1 Response indicating success.

18.7b · Where the target SMETS1 ESME or SMETS1 GSME does not support the update of Debt Recovery Per Payment (with its SMETS1 meaning) when in Prepayment Mode (with its SMETS1 meaning) the S1SP shall ignore DebtRecoveryPerPayment (with its DUIS meaning) if the Device is already in Prepayment Mode (with its SMETS1 meaning) and return a SMETS1 Response indicating success.

18.7c · Where the target SMETS1 ESME or SMETS1 GSME only supports daily Debt Recovery Rates 1 and 2 (with their SMETS1 meanings) the S1SP shall ignore DebtRecoveryRatePeriod (with its DUIS meaning) if it has a value other than DAILY (with its DUIS meaning) and return a SMETS1 Response indicating success.

18.7d · Where the target SMETS1 ESME does not support Debt Recovery Rate 1 or 2 (with their SMETS1 meaning) with an accuracy of greater than hundred thousandths of Currency Units per day, the S1SP shall, where the Service Request specifies a DebtRecoveryRatePriceScale (with its DUIS meaning) of -6 or less, return a SMETS1 Response indicating failure.

18.7e · Where the target SMETS1 ESME does not support a Debt Recovery Rate 1 or 2 (with their SMETS1 meanings) at a resolution greater than ten thousandths of Currency Units per DebtRecoveryRatePeriod (with its DUIS meaning) and the DebtRecoveryRatePriceScale (with its DUIS meaning) specified is -5, the S1SP shall round the Debt Recovery Rate value (with its SMETS1 meaning) down to a whole number of ten thousandths of Currency Units (with its SMETS1 meaning) per DebtRecoveryRatePeriod (with its DUIS meaning).

18.7f · Where the target SMETS1 ESME or SMETS1 GSME only supports Debt Recovery per Payment (with its SMETS1 meaning) in whole numbers of percent, the S1SP shall divide the value in the DebtRecoveryPerPayment (with its DUIS meaning) by 100, round down to the nearest integer and set the value of the Debt Recovery per Payment (with its SMETS1 meaning) to the percentage so calculated.

18.7g · Where the target SMETS1 ESME or SMETS1 GSME does not support a DebtRecoveryRate (with its DUIS meaning) that is larger than 32767, the S1SP shall repeatedly divide the value of any such DebtRecoveryRate (with its DUIS meaning) 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.

18.7h · Where the target SMETS1 ESME does not support a Time Debt Register 1 or 2 or Payment Debt Register (with their SMETS1 meanings) at a resolution greater than ten thousandths of Currency Units and given that the TimeDebtRegister1 or TimeDebtRegister2 or PaymentDebtRegister (with their DUIS meanings) are always specified at a resolution of hundreds of thousandths of Currency Units, the S1SP shall round the Time Debt Register 1 or 2 or Payment Debt Register value (with their SMETS1 meanings) down to a whole number of ten thousandths of Currency Units (with its SMETS1 meaning).

18.7i · Where the target SMETS1 ESME or SMETS1 GSME does not support setting of debt configuration when in Credit Mode (with its SMETS1 meaning) and the Device is in Credit Mode, the S1SP shall return a SMETS1 Response indicating failure.

18.7j · Where the target SMETS1 ESME does not support updating of debt values unless DebtRecoveryRatePriceScales are ‘-2’, the S1SP shall, where the Service Request does not meet these criteria, return a SMETS1 Response indicating failure.

18.7k · Where the target SMETS1 ESME or SMETS1 GSME only supports daily Debt Recovery Rates 1 and 2 (with their SMETS1 meanings) and the DebtRecoveryRatePeriod (with its DUIS meaning) has a value other than DAILY (with its DUIS meaning), the S1SP shall return a SMETS1 Response indicating failure.

18.7l · Where the target SMETS1 ESME or SMETS1 GSME does not support a Time Debt Register 1 or 2 or Payment Debt Register (with their SMETS1 meanings) at a resolution greater than hundredths of Currency Units and given that the TimeDebtRegister1 or TimeDebtRegister2 or PaymentDebtRegister (with their DUIS meanings) are always specified at a resolution of hundreds of thousandths of Currency Units, the S1SP shall configure values which are the Time Debt Register 1 or 2 or Payment Debt Register value (with their SMETS1 meanings) the values specified, discarding the 3 least significant digits with the result being treated as a whole number of hundredths of Currency Units (with its SMETS1 meaning).

18.7m · Where the target SMETS1 GSME only supports Debt Recovery Rates (with their SMETS1 meaning) in whole numbers of pence, the S1SP shall round down the value in the DebtRecoveryRates (with their DUIS meaning), to the nearest whole pence and set the value of the Debt Recovery Rates (with its SMETS1 meaning) to the values so calculated.

18.7n · Where the target SMETS1 GSME requires that the DebtRecoveryRateCap (with its DUIS meaning) is set as part of this Service Request, and where the DebtRecoveryRateCap has not been previously set, then the S1SP shall set the DebtRecoveryRateCap to be £4.

18.7o · Where the target SMETS1 ESME successfully processes the Instructions arising from this Service Request, the Device will immediately create a BillingDataLog entry which would be returned as a result of a subsequent Retrieve Change Of Mode / Tariff Triggered Billing Data Log (SRV 4.4.2) Service Request which covers the period of this processing.

18.7p · Where any DebtRecoveryRatePriceScale (with its DUIS meaning) is different to the configured Tariff TOU Price Matrix / Tariff Block Price Matrix scale (with their SMETS1 meanings) 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] where there is a difference (with its SMETS1 meaning).

18.7q · Whenever the S1SP processes this Service Request and any of the Debt Recovery Rates [1 … 2] or Debt Recovery per Payment (with their SMETS1 meanings) is set to 0, then SMETS1 GSME will not adjust the corresponding one of, or ones of, the Time Debt Register [1…2] or the Payment Debt Register (with their SMETS1 meanings) regardless of the contents of the SMETS1 Response.