3.4.4 Communication Interface IEC 61850 (Function Groups IEC, GOOSE
and GSSE)
The IEC 61850 communication protocol is implemented by these function groups
and the Ethernet module.
Function group IEC is only available as an alternative to function group COMM1
(hardware ordering option!).
3.4.4.1 Communication Interface IEC 61850 (Function Group IEC)
The P631 offers as an ordering option a communication protocol according to the
Ethernet based IEC 61850 protocol.
3.4.4.1.1 IEC 61850
IEC 61850 was created jointly by users and manufacturers as an international
standard. The main target of IEC 61850 is interoperability of devices. This
includes the capability of two or more intelligent electronic devices (IED),
manufactured by the same company or different companies, to exchange data
for combined operation.
This communication standard IEC 61850 has now created an open and common
basis for communication from the process control level down to the network
control level, for the exchange of signals, data, measured values and commands.
For a standardized description of all information and services available in a field
device a data model, which lists all visible functions, is created. Such a data
model, specifically created for each device, is used as a basis for an exchange of
data between the devices and all process control installations interested in such
information. In order to facilitate engineering at the process control level a
standardized description file of the device, based on XML, is created with the
help of the data model. This file can be imported and processed further by the
relevant configuration program used by the process control device. This makes
possible an automated creation of process variables, substations and signal
images.
Available is the following documentation providing the description of the
IEC 61850 data model which is used with the P631:
●
ICD file based on XML in the SCL (Substation Configuration Description
Language) with a description of data, properties and services, available
from the P631, that are to be imported into the configuration tool “IED
Configurator” or into a system configurator.
●
PICS_MICS_ADL file with the following contents:
■
PICS (Protocol Implementation Conformance Statement) with an
overview of available services.
■
MICS (Model Implementation Conformance Statement) with an overview
of available object types.
■
ADL (Address Assignment List) with an overview of the assignment of
parameter addresses (signals, measuring values, commands, etc.) used
by the P631 with the device data model as per IEC 61850.
3 Operation
P631
P631/EN M/R-11-C // P631-310-650 3-21
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