Opc Client - ABB COM600 series User Manual

1MRS756125
3.4.
COM600 series, version 4.1
User's Manual
for publishing and updating data on the OPC interfaces and protocol conversion between
the OPC and the protocol stack using the common IEC 61850 data model.
The configuration of the OPC server and the protocol stack is handled using a configur-
ation parser. The OPC server is configured using SAB600. The configuration information
is exported to an SCL/XML configuration file according to the IEC 61850 SCL specific-
ation. When the OPC server is started, the configuration information is read from the
file.
Figure 3.3-1 Conceptual view of OPC server

OPC client

The OPC client software consists of a Slave/Server Protocol Stack, OPC DA Client,
Configuration SCL, OPC Data Access Server and Alarm&Event server components for
diagnostic and control.
The protocol stack component implements the protocol functions, such as handshaking
signal handling, message coding/decoding, check sum calculations, polling logic, protocol
level timers, and so on. The OPC client/protocol handler implements the functionality
for data subscription from the OPC servers and protocol conversion between the OPC
and the protocol stack using the common IEC 61850 data model.
The configuration of the OPC client and the protocol stack is handled using a configura-
tion SCL. The OPC server is configured using SAB600. The configuration information
is exported to the SCL/XML configuration file according to the IEC 61850 SCL specific-
ation. When the OPC client is started the configuration information is read from the file.
ServerConcept_a.bmp
19