Scheduler, basics

The main task of the scheduler is to allow you to create, configure and administrate a number of schedules of either time or event triggered actions.

By using the scheduler a set of specific actions can be triggered by defining simple or complex conditions. You can define actions like:

• Setting the value of a data point element to a predefined value,
• Showing a pop-up message,
• Initiating an alert in the alert screen,
• Setting values via recipes or
• Executing a user-defined script.

A scheduler condition can consist of

• Only one date,
• A set of dates,
• Periodic events,
• A date combined with a value condition,
• Only a single value condition
• etc.

Every time a combination of conditions is fulfilled the configured actions will be executed assuming the relevant schedule is set to active state.

The scheduler can trigger a single action as well as so called ON/OFF actions. An ON action can however also be used for shutting off a device although the name refers to switching it on. In the same way an OFF action can trigger a starting action. The type of the executed action is not dependent on the definition (ON/OFF).

Additionally, you can define a list of special days and execute schedules either only on these days or excluding these days.

To simplify the configuration you can choose between five predefined definition schemes, namely a

• Day schedule,
• Week schedule,
• Free schedule,
• Reaction program and
• Info action.

Each of them provides special features that can be combined by creating a chain of schedules. A chain includes several schedules that are dependent on each other.

The scheduler can be utilized in wide range of industries (e.g. building automation, facility management, wastewater treatment plants, ...) and can be deployed e.g. to perform the following tasks:

• Heat- and climate control
• Light control
• Alarming issues
• Switching between different operational modes
• Recipes (time controlled activation of recipes)
• Changing responsibilities (on-call service teams)
• Time-dependent maintenance
• Reminder function for operational staff
• Cyclic diagnostics/reports
• Automatic checking sequences (weekly siren test etc.)
• Time-dependent and/or value dependent change of set points

• ...

This means that you can e.g. switch the operating mode of an air-conditioning at a particular time (at 7:00 o'clock) every day or configure a behavior for one specific day (only on Christmas Eve 24.12.2002 8:00 o'clock).

You can also define a periodical execution (e.g. daily from 7:00 to 8:00 o'clock) or set a single duration (e.g. 1.1.2003 from 12:00 to 13:00 o'clock). You can create a date/time list (1.1.2003 at 13:00 o'clock, 22.1.2003 at 15:00 o'clock, 13.12.2003 at 16:00 o'clock) to execute your actions or configure a weekly behavior.

Due to the fact that time and value conditions can also be combined with each other a wide range of applications can be covered by the scheduler.

This functionality is delivered by ETM ready for use. For creating, configuring and administrating the scheduler no special knowledge is necessary.