Examples of Scheduling Polled Triggers

You can schedule calculations using polled triggers, as shown in the following examples.

Scheduling a Trigger every Monday

Since Monday is the second day of a week, enter the following VBScript code in the Calculation pane:

Dim curDate curDate=CurrentTime
IF (Weekday(curDate))=2 THEN
Result=50 <Place your calculation here>
END IF

Notice that the CurrentTime built-in function is used in this example instead of Now.

Scheduling a Trigger on the First Day of Every Month

Enter the following VBScript code in the Calculation pane:

Dim curDate curDate=CurrentTime
IF (day(curDate))=1 THEN
Result=50 <Place your calculation here>
END IF

Notice that the CurrentTime built-in function is used in this example instead of Now.

Scheduling a Trigger on the Last Day of Every Month

Enter the following VBScript code in the Calculation pane:

Dim curDate curDate=CurrentTime
IF (day(curDate))=1 THEN
Result=50 <Place your calculation here>
END IF

Notice that the CurrentTime built-in function is used in this example instead of Now.

Example 5: Creating a Controlled Sequence of Polled Tags Using a Collection Offset

A controlled sequence is a calculation that is based on the result of another calculation. The following is an example of how to configure a controlled sequence of polled tags by using the collection offset. The collection offset is greater than 0 in this example.

A tag named SumOfData has a Collection Interval of 60 seconds and the Collection Offset of 0 milliseconds.

SumofData performs the first calculation:

Result = CurrentValue("DataTag1") + CurrentValue("DataTag2")

Another tag, named CorrectedUnits, uses a Collection Interval of 60 seconds, but a Collection Offset of 1000 milliseconds.

CorrectedUnits fires and performs another calculation based on the output of the first calculation:

Result = CurrentValue("SumOfData") *.0001