Iec 61850 Master; About This Section; Iec 61850 Opc Server Data Object Modeling; Common Data Attribute Types - ABB COM600 series 5.0 Technical Reference Manual

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COM600 series 5.0
Master Protocols (Ethernet) and Applications Technical Refer-
ence Manual

IEC 61850 Master

About this section

This document describes how IEC 61850 data objects according to IEC 61850-7-3 are
mapped to OPC nodes and item tags.
In general it is done by using an OPC node to represent an IEC 61850 object, and OPC
item tags to represent the attributes of the object. Most objects are single-level (that is,
use only on node) but some are hierarchical and use several nodes.
This section provides reference information about the following issues:
•
IEC 61850 data object modeling
•

IEC 61850 OPC Server data object modeling

• Attributes
• Status codes
IEC 61850 OPC server data object modeling

Common data attribute types

The following sections describe how the IEC 61850 data object attributes and services
are presented on the OPC server name space.
The columns in the tables have the following content types:
• Name specifies the OPC item name of the attribute or service.
• Type specifies the IEC 61850 type of the attribute.
• Value/Value range specifies the allowed values and ranges of the attribute or service.
•
Mandatory/Optional specifies whether the attribute is considered as mandatory or
optional according to the IEC 61850 standard.
•
OPC data type specifies the OPC data type used for the OPC item.
•
Bit specifies how many bits the attribute takes.
• Description describes the data type and access and gives useful information.

IEC 61850 quality

The following table defines the mapping of quality in MMS (IEC 61850 7-3). Only 14
bits (LSB) in quality are valid.
1MRS758690