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Resource Information and Configuration
Events Model
Events Model
Events are a fundamental part of production. The events model is used to map out the critical events that occur to control production. These events can be created within this application or from external systems, and can be used to control workflow execution.
Condition Events
Condition events are defined by logical expressions against variable values. When these components are set and enabled, they are monitored by the system. When expressions evaluate to true, the event occurs and subscribers to the event are notified.
Evaluation of Condition Expressions
The Trigger Settings tab allows you to determine when the configured condition expressions will be evaluated. The results of these evaluations determine whether or not the event can run.
Event Sources
Event sources are data items that you can subscribe to.
Equipment Event Source Properties
You can use event source properties to monitor particular events related to conditional events or workflow schedules.
Event Source Class Removed from Instance
This event occurs when a class resource type is removed from a piece of equipment.

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Resource Information and Configuration
- Resource Information and Configuration
- Material Model
- Material Inventory
- Equipment Model
- Production Model
- Events Model
  - Events Model
    Events are a fundamental part of production. The events model is used to map out the critical events that occur to control production. These events can be created within this application or from external systems, and can be used to control workflow execution.
    - Enable an event
    - Disable an event
    - Time Events
      Time events can be set by time span or by calendar, and they can be either single or recurring events.
    - Condition Events
      Condition events are defined by logical expressions against variable values. When these components are set and enabled, they are monitored by the system. When expressions evaluate to true, the event occurs and subscribers to the event are notified.
      - Properties and Attributes of Condition Events
        The Details tab offers general information about the selected condition event.
      - Evaluation of Condition Expressions
        The Trigger Settings tab allows you to determine when the configured condition expressions will be evaluated. The results of these evaluations determine whether or not the event can run.
        Set a trigger for a conditional event
        Set up class-based events
        You can bind class properties to event variables so that an event can detect a property change in any equipment to which that class has been added.
        Create variables for a condition event
        Create an expression for a condition event
        Condition Event Expression Variables
        The Variables tab allows you to add, modify, and delete expression variables to use when building event expressions. You can define one or more variables, which can be a constant value bound to an attribute of the trigger event, or bound to external data.
        Condition Expressions
        The Condition Expressions tab allows you to create expressions using mathematical or Boolean logic.
        Event Sources
        Event sources are data items that you can subscribe to.
        User-Defined Event Source Properties
        You can use event source properties to monitor particular events related to conditional events or workflow schedules.
        Production Event Source Properties
        You can use event source properties to monitor particular events related to conditional events or workflow schedules.
        GE Historian Event Source Properties
        You can use event source properties to monitor particular events related to conditional events or workflow schedules.
        Workflow Event Source Properties
        Event sources are data items that you can subscribe to when you configure a workflow schedule. You use event sources to define when the selected workflow schedule is triggered
        Equipment Event Source Properties
        You can use event source properties to monitor particular events related to conditional events or workflow schedules.
        Event Source Class Added to Instance
        This event occurs when a class resource type is added to a piece of equipment.
        Event Source Class Removed from Instance
        This event occurs when a class resource type is removed from a piece of equipment.
        Material Event Source Properties
        You can use event source properties to monitor particular events related to conditional events or workflow schedules.
        Compliance Event Source Properties
        You can use event source properties to monitor particular events related to conditional events or workflow schedules.
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Event Source Class Removed from Instance

This event occurs when a class resource type is removed from a piece of equipment.

Following are all available properties that are specific to this event source.

Property	Data Type	Description
EquipmentAddress	DirectoryResource	Specifies the address of the equipment that changed.
ChangeType	String	"Class Removed" string that identifies this event.
Change	String	Specifies the name of the class that was removed.
ChangeAddress	DirectoryResource	Specifies the address of the class that was removed.