UC02: Scheduling actions on special dates – OPC Unified Architecture

5.2 UC02: Scheduling actions on special dates

5.2.1 Overview

The user wants to schedule that on special dates or date periods a specific action is executed, for example switching off the heating during public holidays. The user wants to be able to define those dates individual or reference predefined dates that can be used in several schedules. In Table 2, an example is given.

Table 2 – Example Exception Schedule

Date				Time	Value	Priority
Day	Interval	Recurring	Reference
		Every Saturday of March 2022		05:00	On	11 (School board)
				12:00	Off
	2022-04-03 – 2022-04-07			05:00	On	12 (IT user)
				16:30	Off
2022-04-01				05:00	On	13 (facility manager)

			CAL1 Variable Holidays	00:00	Off	14
			CAL2 Set Holidays	00:00	Off	15
			CAL3 School Vacation	00:00	Off	16

The referenced calendars are defined in Table 3.

Table 3 – Example Calendars

Day	Interval	Recurring	Note
CAL1: Variable Holidays
2022-04-18			Easter Monday
2022-05-26			Ascension Day
CAL2: Set Holidays
		Jan 01.	New Year’s
		Jan 06.	Epiphany
		Dec 24.	Christmas Eve
		Dec 25.	Christmas Day
		Dec 26.	Christmas Day
CAL3: School Vacation
	2022-02-21 – 2022-02-25
	2022-07-25 – 2022-09-02
	2022-12-23 – 2023-01-02

The example shows more detailed use cases, summarized in the following subsections.

5.2.2 UC002.1: Schedule actions at a specific date

As shown in Table 2 in the third entry, a special schedule on a specific date (2022-04-01) shall be applied.

5.2.3 UC002.2: Schedule actions at an interval from a specific date to a specific date

As shown in Table 2 in the second entry, a special schedule on a specific interval (2022-04-03 – 2022-04-07) shall be applied.

5.2.4 UC002.3 Schedule actions at a recurring interval

As shown in Table 2 in the first entry, a special schedule on a recurring interval (every Saturday per of March 2022) shall be applied.

5.2.5 UC002.4 Schedule actions at specific dates defined globally

As shown in Table 2 in the last three entries, a special schedule shall be applied on dates defined globally. The global definition shall support concrete dates (CAL1), recurring dates (CAL2) and concrete ranges (CAL3).