CIM Issues #6736
Updated by Todd Viegut 11 days ago
The following model changes were made for this issue:
For class *Quality61850*:
* Class description was changed to: "Quality flags in this class are as defined in IEC 61850-7-2:2010+AMD1:2020. The source attribute has additional enumeration values."
* Added new attribute *Quality61850.inconsistent* with description: "If true, an evaluation function has detected an inconsistency. Typically set within the measurement device or substation automation system."
* Added new attribute *Quality61850.inaccurate* with description: "If true, the value does not meet the stated accuracy of the source. For example, the measured value of power factor may be inaccurate when the current is very small."
* Moved attribute *Quality61850.suspect* to *MeasurementValueQuality.suspect* (breaking change).
* Moved attribute *Quality61850.estimatorReplaced* to *MeasurementValueQuality.estimatorReplaced* (breaking change).
* Updated description of *MeasurementValueQuality.suspect* to: "The value has been replaced (substituted) by a State Estimator application"
* Updated description of *MeasurementValueQuality.estimatorReplaced* to: "A correlation function has detected that the value is not consistent with other values. Typically set by a network State Estimator."
* Updated the *Quality61850.validity* description to:
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"Validity of the value, as condensed information for the client. In case this value is not 'good', some reasons may be found in other attributes. 'invalid' means that the value cannot be used. 'questionable' means that the value may or may not be used by the receiving application. For example a switch position measurement with oldData = true, may still be used by topology processing.
The reason for an invalid or questionable value of an attribute may be specified in more detail with further quality identifiers. If one of these identifiers {overflow, outOfRange, badReference, oscillatory, oldData, inconsistent, inaccurate, failure} is set then validity shall be set to invalid or questionable.
Reference: Table D.1 IEC 61850-7-2:2010+AMD1:2020
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* Updated the *Quality61850.source* description to:
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"Defines the source (origin) of a value. The value may be acquired from the process, defaulted or substituted.
For values acquired through IEC 61850 based systems, the source can be "process" or "substituted". Substitution may be done in the acquisition device, in a communication device or within a CIM application."
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Profile impacts:
* The IEC61970-452 Operation profile utilized Quality61850. It will need to be updated to reflect the attribute changes.