Add a replication schedule

A replication schedule defines the interval or specific times for summary periods. Replication intervals are defined by a number of minutes or hours.

The AVEVA Historian sets up several standard replication schedules: 1, 5, 15, and 30 minutes, 1 hour, and 1 day. You can also add custom replication schedules to fit your own time requirements.

Replication is triggered at the schedule interval calculated from the beginning of the day (local time). For example, if you specify a 5-hour interval: replication will have summary values at 0:00, 5:00, 10:00, 15:00, 20:00 and again at 1:00. This is only the case for periodic schedules, not custom ones.

If a partial interval has elapsed at midnight, it will automatically trigger whether or not the interval has expired. All replication intervals cannot be longer than one day (24 hours).

Custom replication schedules are a list of start times (local time) to trigger the summary. These will only trigger at the specified times and will not necessarily trigger at the end of the day.

You can also define a schedule abbreviation that is used when new replication groups are defined using the particular schedule. The schedule abbreviation is automatically generated as the interval is modified, but you can override the default. For example, with a tag named LevelTag1 configured for 7 minute replication using the schedule abbreviation 7m and being replicated from LocalServer1 to ReplServer2, the abbreviation is included in the destination tag name: LocalServer1.LevelTag1.7m.

The schedules you set up are expressed in local time and are impacted by Daylight Savings Time changes. For more information, see Replication schedules and daylight savings time .

To add a replication schedule

1. In the Operations Control Management Console, expand a server group and then expand a server.

2. Expand Configuration Editor, expand System Configuration, and then expand Replication.

3. Right-click Replication Schedule and select New Replication Schedule. The New Replication Schedule dialog box appears.

   

4. In the Schedule Name box, type the name of the schedule (up to 256 characters).

5. In the Schedule Abbreviation box, type the schedule abbreviation (up to 32 characters). This is used as part of the default naming scheme.

6. Check Automatically create replication group for each new Replication Server to have the Historian add this schedule group to the default list of schedule groups whenever you create a replication server. (To add it to an existing server, you have to manually add the group.)

7. Select Interval and specify a time to set a regular time interval for replication. Alternatively, you can select Custom Replication Schedules and then enter specific trigger times for the replication schedule. A custom replication schedule can have up to 100 trigger times.

8. Click Finish. The new replication schedule appears in the replication schedule list.