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AVEVA™ Manufacturing Execution System 2023 R2

Utilization state properties

  • Last UpdatedOct 28, 2024
  • 4 minute read
  • Description

    The name of the utilization state.

  • Color

    The color used to indicate the utilization state.

Properties Used As Defaults for Utilization Reasons

The following properties are used to apply their values as default property values for any utilization reason that is assigned this utilization state. See Utilization reason properties.

  • Priority for Line Utilization

    The default value for the utilization reason's priority, which is used to determine the reason for a line that has two or more bottleneck entities with differing reasons. The reason with the highest-numbered priority value is used as the line’s utilization reason.

    The default is 1. A value must be entered, and 0 is not allowed. If 0 entered, the value defaults to 1.

  • Reason Enables Entity

    The default setting for the utilization reason's Reason Enables Entity property.

    • True

      If selected, specifies that any entity with this reason is enabled for production.

    • False

      If selected, any entity with this reason is not automatically enabled for production. If an entity is in a disabled state, then its production rate is not used in the calculation of the bottleneck line position

    • Neither

      No default setting is applied for the utilization reason's Reason Enables Entity property.

  • Failure

    The default setting for the utilization reason's Failure property.

    • True

      If selected, specifies that any time that the entity spends in the utilization reason is considered failure time. Failure time is used in the calculation of Mean Time Between Failures (MTBF) and Mean Time to Repair (MTTR).

    • False

      If selected, the utilization reason's event is not considered failure time.

    • Neither

      No default setting is applied for the utilization reason's Failure property.

  • OEE Use

    The default setting for the utilization reason's OEE Use property.

    • Runtime

      If selected, specifies that an event with this utilization reason counts toward runtime. Runtime events contribute to the calculation of Availability and Performance.

    • Downtime

      If selected, specifies that an event with this utilization reason counts toward downtime. Downtime events contribute to the calculation of Availability.

    • Neither

      If selected, specifies that an event with this utilization reason does not count toward runtime or downtime. Therefore, this utilization reason time is excluded from the calculation of OEE.

  • Maximum Duration

    The default value for the utilization reason’s Maximum Duration property. Specifies the maximum duration, in seconds, that is used with setting a Severe flag or with the New Reason parameter.

    • If the New Reason functionality is not being used (that is, there is no entry in the New Reason column) and the maximum duration is exceeded, the reason is marked as being Severe and the event is considered to be in a severe condition. The Severe flag is typically used with downtime events.

    • If the New Reason functionality is being used (that is, there is an entry in the New Reason column) and the maximum duration is exceeded, the utilization reason for the entity is changed to the new reason specified in the New Reason column.

      A value of 0 is not allowed. If 0 is entered, the value defaults to 1.

      If Maximum Duration is not being used, leave this field blank, which disables the feature.

  • New Reason

    A default entry for the utilization reason’s New Reason property. The utilization reason that this reason should change to when the maximum duration is exceeded.

    For example, if a Jam condition exceeds a maximum duration of 5 minutes, then the entity would change to the new reason Mechanic Assistance Required. Note that this has the same effect as manually entering a new reason of Mechanic Assistance at the 5-minute mark. The new reason (Mechanic Assistance Required) starts at that time, and the Jam utilization event ends at that time. However, because utilization is only updated once a minute, the actual transition may be up to 59 seconds after the maximum duration of the original event (Jam in this example) was reached.

    This setting is not available unless a value is entered for Maximum Duration.

  • Duration

    The default values for the utilization reason's Duration properties.

    • Standard Time

      The standard amount of time, in minutes, that an entity is expected to be in this utilization reason. Entered values are rounded to two decimal places.

    • Minimum Time

      The minimum amount of time, in minutes, that an entity is expected to be in this utilization reason. Entered values are rounded to two decimal places.

    • Maximum Time

      The maximum amount of time, in minutes, that an entity is expected to be in this utilization reason. Entered values are rounded to two decimal places.

  • Cost As

    The default setting for the utilization reason's Cost As property.

    • Fixed

      If selected, specifies that an event with this utilization reason is costed as fixed time.

    • Variable

      If selected, specifies that an event with this utilization reason is costed as variable time.

    • Neither

      If selected, specifies that an event with this utilization reason is not costed as fixed time or variable time.

  • Setup Time

    The default setting for the utilization reason's Setup Time property.

    • True

      If selected, specifies that an event with this utilization reason counts toward setup time.

    • False

      If selected, specifies that an event with this utilization reason does not count toward setup time.

    • Neither

      No default setting is applied for the utilization reason's Setup Time property.

  • Teardown Time

    The default setting for the utilization reason's Teardown Time property.

    • True

      If selected, specifies that an event with this utilization reason counts toward teardown time.

    • False

      If selected, specifies that an event with this utilization reason does not count toward teardown time.

    • Neither

      No default setting is applied for the utilization reason's Teardown Time property.

  • Category 1–4

    Default selections for the utilization reason’s user-defined category entries.

  • Util_Reas spare 1–4

    Default entries for the utilization reason’s user-defined spare fields.

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