Default Equipment State Class
Equipment manager component by default has an equipment state class named Default. The default class consists of the following default states.
Enter in the integer value for this equipment state. This will generally align with the status code value from the PLC.
Do not set state code to zero as it is used internally.
The Assigned Codes list provide a view of all codes that have already been assigned.
Short Stop Threshold (seconds)
Enter in a time value in seconds for how long a state must persist for before it considered to be in this. The Short Stop Threshold is not used for states of state type RUNNING.
Down Time events can be prevented from affecting OEE Availability for a set duration of time (Short Stop Threshold). Events that occur during the Short Stop Threshold period will be ignored for ongoing OEE Availability calculations. To have all events be included in OEE Availability calculations, set Short Stop Threshold = 0.
Enable Meantime Metrics
When enabled, this state will be included in the calculation of Mean Time Between Failure (MTBF), when this state is responsible for causing a line downtime event. MTBF is calculated by taking total running time, or time during a run in which the line is not down, and dividing it by the number of applicable events. So if a production run had 3.5 hours of running time and had 5 events for which Meantime Metrics were enabled, the MTBF would be 0.7. MTBF is pertinent for unexpected downtime events or Unplanned Downtime Type states.
The Override property defines if it is possible for a operator to override the equipment state through the Downtime Table Editor component. Valid options are...
- Optional - Operator can select a different state based on the Scope setting
- Prohibited - Operator cannot change this equipment state
- Required - Operator is required to select a state based on the Scope setting for this equipment state