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- LNVariableName is a name of a Logical Node. The name can be arbitrary, e.g. LLN0, Obj1XCBR1, Obj2XSWI1
- FC is a Functional Constraint. Table of defined functional constraints can be seen below.
- LNDataName is a name of a Data ObjectDataObject. The name can be arbitrary, the standard contains recommended rules concerning naming conventions.
- AttributeName is a name of a Data Object Attribute of a DataObject . Table of frequently used attributes can be seen below.
- subDataAttributeName jis is a name of a Data Object Subattributeof Attribute of a SubDataObject. Table of frequently used attributes can be seen below.
The standard defines following naming conventions for individual components of a reference:
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FC Name | Description |
|---|---|
| MX | Measurands (analogue values) |
| ST | Status information |
| CO | Control service parameters |
| CF | Configuration |
| DC | Description |
| SP | Setting (outside setting group) |
| SG | Setting group |
| RP | Unbuffered report control blocks |
| LG | Log control blocks |
| BR | Buffered report control blocks |
| GO | GOOSE control blocks |
| GS | GSSE control blocks |
| SV | Substituted values |
| SE | Setting group editing |
| MS | Multicast Sampled Values control block |
| US | Unicast Sampled Values control block |
| EX | Name space for model extension |
| SR | Service tracking |
| OR | Operate received |
| BL | Blocking |
Names of Data Object Attributes are defined DataObject Attributes and SubDataObject Attributes are defined in ISO/IEC IEC 61850-7-3 and following table contains only the most common ones:
Attribute Name | Description |
|---|---|
| ctlModel | Specifies the control model of IEC 61850-7-2 that corresponds to the behaviour of the data. |
| d | Textual description of the data. |
| evalTm | Time window applied to interharmonic calculations. The value shall be represented in ms. |
| frequency | Nominal frequency of the power system or some other fundamental frequency in Hz. |
| instMag | Magnitude of a the instantaneous value of a measured value. |
| mag | Deadbanded value. Shall be based on a dead band calculation from instMag. |
| numCyc | Number of cycles of power frequency, which are used for harmonic, subharmonic and interharmonic calculations. |
| numHar | Number of harmonic and subharmonics or interharmonic values that are to be returned as the value attribute. |
| phsAHar, phsBHar, phsCHar | This array shall contain the harmonic and subharmonics or interharmonic values related to phase A (resp. B, C). |
| phsABHar, |
| phsBCHar, phsCAHar | This array shall contain the harmonic and subharmonics or interharmonic values related to phase A to phase B (resp. B to C, resp. C to A). |
| q | Quality of the attribute(s) epresenting the value of the data |
| setCharact | This attribute shall describe the curve characteristic. |
| setMag | The value of an analogue setting or set point. |
| stVal | Status value of the data |
| swRev | SW-revision |
| t | Timestamp of the last change in one of the attribute(s) representing the value of the data or in the q attribute. |
| units | Units of the attribute(s) representing the value of the data (ISO/IEC IEC 61850-7-3 Annex A) |
| vendor | Name of the vendor. |
Data Type
The list of permitted data types:
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