<![CDATA[DLMS Special Days Table (Class 11) for Holiday Tariff Overrides]]>Holiday and National Event Tariff Management (Class 11)

Class 11 (Special Days Table, OBIS 0.0.11.0.0.255) enables smart meters to treat holidays (e.g. New Year, National Day) as Sunday off-peak billing schedules.

Entry Structure

Structure {
    index: Long-Unsigned,
    special_day_date: Octet-String (5 bytes: Year, Month, Day, DayOfWeek),
    day_id: Unsigned (References Day Profile ID in Activity Calendar)
}

When the real-time clock reaches the special day date, the meter overrides the normal week schedule and runs the designated day_id profile for 24 hours.

]]>https://dlms.sharur.org/topic/38/dlms-special-days-table-class-11-for-holiday-tariff-overridesRSS for NodeFri, 16 Oct 2026 19:51:32 GMTSat, 22 Aug 2026 12:36:58 GMT60<![CDATA[Reply to DLMS Special Days Table (Class 11) for Holiday Tariff Overrides on Sat, 22 Aug 2026 12:37:08 GMT]]>In our utility HES, we sync the annual holiday calendar on December 15th across all meters in a single automated batch job.

]]>https://dlms.sharur.org/post/89https://dlms.sharur.org/post/89Sat, 22 Aug 2026 12:37:08 GMT<![CDATA[Reply to DLMS Special Days Table (Class 11) for Holiday Tariff Overrides on Sat, 22 Aug 2026 12:37:06 GMT]]>Remember that recurring annual holidays can use wildcard 0xFFFF for the Year field in the 5-byte date octet-string, so the rule executes automatically every year without requiring annual maintenance.

]]>https://dlms.sharur.org/post/88https://dlms.sharur.org/post/88Sat, 22 Aug 2026 12:37:06 GMT