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Quality61850

Quality flags in this class are as defined in IEC 61850, except for estimatorReplaced, which has been included in this class for convenience.

*NOTE: this is an abstract class and should not be instantiated directly

URI: cim:Quality61850
Type: Class

Quality61850 class diagram

Inheritance

  • Quality61850

Attributes

Name URI Cardinality and Range Inheritance Description
badReference cim:Quality61850.badReference 0..1 boolean direct Measurement value may be incorrect due to a reference being out of calibration.
estimatorReplaced cim:Quality61850.estimatorReplaced 0..1 boolean direct Value has been replaced by State Estimator. estimatorReplaced is not an IEC61850 quality bit but has been put in this class for convenience.
failure cim:Quality61850.failure 0..1 boolean direct This identifier indicates that a supervision function has detected an internal or external failure, e.g. communication failure.
oldData cim:Quality61850.oldData 0..1 boolean direct Measurement value is old and possibly invalid, as it has not been successfully updated during a specified time interval.
operatorBlocked cim:Quality61850.operatorBlocked 0..1 boolean direct Measurement value is blocked and hence unavailable for transmission.
oscillatory cim:Quality61850.oscillatory 0..1 boolean direct To prevent some overload of the communication it is sensible to detect and suppress oscillating (fast changing) binary inputs. If a signal changes in a defined time twice in the same direction (from 0 to 1 or from 1 to 0) then oscillation is detected and the detail quality identifier oscillatory is set. If it is detected a configured numbers of transient changes could be passed by. In this time the validity status questionable is set. If after this defined numbers of changes the signal is still in the oscillating state the value shall be set either to the opposite state of the previous stable value or to a defined default value. In this case the validity status questionable is reset and invalid is set as long as the signal is oscillating. If it is configured such that no transient changes should be passed by then the validity status invalid is set immediately in addition to the detail quality identifier oscillatory (used for status information only).
outOfRange cim:Quality61850.outOfRange 0..1 boolean direct Measurement value is beyond a predefined range of value.
overFlow cim:Quality61850.overFlow 0..1 boolean direct Measurement value is beyond the capability of being represented properly. For example, a counter value overflows from maximum count back to a value of zero.
suspect cim:Quality61850.suspect 0..1 boolean direct A correlation function has detected that the value is not consistent with other values. Typically set by a network State Estimator.
test cim:Quality61850.test 0..1 boolean direct Measurement value is transmitted for test purposes.

Schema Source