How to use the scheduler task in EcoStruxure Machine SCADA Expert v2023?

Issue:

The Scheduler is used to execute program logic (using the Built-in Scripting Language) at a specific date/time, on a certain time interval, at the occurrence of a defined event.

In this FAQ an example using the Clock event type is shown.

Product:

EcoStruxure Machine SCADA Expert v2020, v2023

Environment:

HMI Configuration Software in Windows

Resolution:

The Scheduler worksheet consist of the following columns:

Event: There are three types of events: Calendar, Clock, and Change.

• Calendar: Events that occur on time bases greater than 24 hours (e.g., print a report every Friday at a certain time).
• Clock: Events that occur on time bases smaller than 24 hours (e.g., intervals in minutes or seconds).
• Change: Events related to a change in a tag defined in the Trigger field.

Trigger: Used only with the Change event. When the tag defined here changes, the Expression will be evaluated.

Time: Used with the Calendar and Clock event types.

• With Calendar, when the specified date and time occurs, the Expression will be evaluated.
• With Clock, the Expression is evaluated based on the time interval configured in Time, starting from when the project begins running.

Type a time using the HH:MM:SS.ms format. Valid values are:

• Hours: 00 to 23
• Minutes: 00 to 59
• Seconds: 00 to 59
• Milliseconds: 1 to 9 (optional)

Examples:

• 03:00:00 = every three hours
• 00:00:00.1 = every 100 milliseconds

Date: Used only with the Calendar event type.

The order and separator settings determine the overall date format.

For example:

• Default: MM/DD/YYYY (e.g., 02/13/2015)
• ISO 8601: YYYY-MM-DD (e.g., 2015-02-13)

Tag: The tag that will receive the value returned from the Expression.

Expression: The expression to be evaluated.

Disable: Condition to disable the event.

Example using the Clock event.

Adding the tag to the Output window log:

Result:

Note: Really close to the 100ms defined; for larger intervals, this will be more precise.

Related resources:

Title: EcoStruxure™ Machine SCADA Expert, Help Manual

URL: https://download.schneider-electric.com/files?p_Doc_Ref=EIO0000002448&p_enDocType=User+guide&access=Public

Relevant Pages:

• Page 502: Time format details
• Page 680: Date format details

Released for: Schneider Electric Thailand