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IEC61970::Base::Meas::Quality61850 Class Reference

#include <Quality61850.h>

Inheritance diagram for IEC61970::Base::Meas::Quality61850:
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Collaboration diagram for IEC61970::Base::Meas::Quality61850:
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Public Attributes

IEC61970::Base::Domain::Boolean badReference
IEC61970::Base::Domain::Boolean estimatorReplaced
IEC61970::Base::Domain::Boolean failure
IEC61970::Base::Domain::Boolean oldData
IEC61970::Base::Domain::Boolean operatorBlocked
IEC61970::Base::Domain::Boolean oscillatory
IEC61970::Base::Domain::Boolean outOfRange
IEC61970::Base::Domain::Boolean overFlow
IEC61970::Base::SCADA::Source source
IEC61970::Base::Domain::Boolean suspect
IEC61970::Base::Domain::Boolean test
IEC61970::Base::Meas::Validity validity

Detailed Description

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

Member Data Documentation

◆ badReference

IEC61970::Base::Domain::Boolean IEC61970::Base::Meas::Quality61850::badReference

Measurement value may be incorrect due to a reference being out of calibration.

◆ estimatorReplaced

IEC61970::Base::Domain::Boolean IEC61970::Base::Meas::Quality61850::estimatorReplaced

Value has been replaced by State Estimator. estimatorReplaced is not an IEC61850 quality bit but has been put in this class for convenience.

◆ failure

IEC61970::Base::Domain::Boolean IEC61970::Base::Meas::Quality61850::failure

This identifier indicates that a supervision function has detected an internal or external failure, e.g. communication failure.

◆ oldData

IEC61970::Base::Domain::Boolean IEC61970::Base::Meas::Quality61850::oldData

Measurement value is old and possibly invalid, as it has not been successfully updated during a specified time interval.

◆ operatorBlocked

IEC61970::Base::Domain::Boolean IEC61970::Base::Meas::Quality61850::operatorBlocked

Measurement value is blocked and hence unavailable for transmission.

◆ oscillatory

IEC61970::Base::Domain::Boolean IEC61970::Base::Meas::Quality61850::oscillatory

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 (tosc) 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

IEC61970::Base::Domain::Boolean IEC61970::Base::Meas::Quality61850::outOfRange

Measurement value is beyond a predefined range of value.

◆ overFlow

IEC61970::Base::Domain::Boolean IEC61970::Base::Meas::Quality61850::overFlow

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.

◆ source

IEC61970::Base::SCADA::Source IEC61970::Base::Meas::Quality61850::source

Source gives information related to the origin of a value. The value may be acquired from the process, defaulted or substituted.

◆ suspect

IEC61970::Base::Domain::Boolean IEC61970::Base::Meas::Quality61850::suspect

A correlation function has detected that the value is not consitent with other values. Typically set by a network State Estimator.

◆ test

IEC61970::Base::Domain::Boolean IEC61970::Base::Meas::Quality61850::test

Measurement value is transmitted for test purposes.

◆ validity

IEC61970::Base::Meas::Validity IEC61970::Base::Meas::Quality61850::validity

Validity of the measurement value.

The documentation for this class was generated from the following files: