Technical Reference; About This Section; Iec 61850 Data Modeling; General Information About Iec 61850 Data Modeling - ABB COM600 series User Manual

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5.
5.1.
5.2.
5.2.1.
5.2.2.
Name Type
stVal BOOLEAN
q Quality
t TimeStamp
COM600 series, Version 5.1
Modbus Serial Slave (OPC) User's Manual

Technical reference

About this section

This section provides reference information about the following issues:
•

IEC 61850 data modeling

•
Attributes
•
Status codes.
IEC 61850 data modeling

General information about IEC 61850 data modeling

The following sections describe the relationship between the IEC 61850 data modeling
and Modbus Serial Slave OPC Client. There is a table for each data class giving a detailed
description about the relationship between the Modbus data and IEC 61850 data object
attributes and services. The tables also describe how the data is 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/service.
• Type specifies the IEC 61850 type of the attribute.
• Value/ Value range specifies the allowed values and ranges of the attribute/service.
• Mandatory/Optional specifies whether the attribute is considered as mandatory or
optional according to the IEC 61850 standard.
•
Modbus information element specifies the Modbus information element related
to the attribute/service.
•
OPC data types specify the OPC data type used for the OPC item.

Single point status (SPS)

Value/Value range
TRUE | FALSE
Mandat- Protocol informa-
ory/Optional tion element
M
M
M
OPC data types
VT_BOOL
VT_I4
VT_DATE
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