MP105 Sending SR11.2 to Devices in Suspended State

When firmware is successfully activated on a Device, sometimes the corresponding Service Request 11.3 ‘Activate Firmware’ does not generate a response to the Data Services Provider (DSP). Consequently, the new firmware version is not updated in the Smart Metering Inventory (SMI) and the Device remains in a ‘Suspended’ state, even though the new firmware has been successfully activated. This means the Device is not fully operational.

Some Supplier systems will automatically re-send SR11.3 to get a response in this scenario. However, if it returns a response with a new firmware version, it will not update the status of the Device as the firmware is already activated. Currently the DSP only updates the firmware version in the SMI if the response is ‘success’.

The Proposed Solution is to add SR11.2 ‘Read Firmware Version’ to the exception list for the E5 ‘Failed Authorisation – Invalid Device Status’ authorisation check. This would allow the DCC Service User to read the new firmware version on the Device whilst ‘Suspended’ and subsequently update this information in the SMI based on the SR11.2 response. In addition, the response to a Service User’s automated re-attempt of SR11.3 will be used to update the SMI with the new firmware version and subsequently the status of the Device. Both cases would result in the Device status being restored to the status it held immediately prior to its suspension.

Large Suppliers
Small Suppliers
DCC

Appendix AD 'DCC User Interface Specification'