Predefined Horizontal Communication Data Set - ABB RELION REC615 Engineering Manual

Section 4
615 series data model
4.3.2
20
IED data model. If all data does not fit into one data set, two data sets with suffixes "A"
and "B" are created.
The protection relays support both buffered and unbuffered event reporting. In the
predefined configuration all report control blocks are configured to use buffered
reporting. The benefit of buffered reporting is that it buffers events during
communication breaks and thus no events are lost. Further, a single data set can only
be used by one report control block and the same data set entry cannot be used in
different event reporting data sets.
The default values for the data sets and control blocks are suitable for most
applications. The protection relay allows free renaming and editing of report control
blocks and data sets. Only users who have an in-depth understanding of the protection
relay and IEC 61850 should modify the default configuration. Description of data in
default data sets is available in the parameter list.
Vertical communication protocols, such as Modbus, rely on the data
sets for event generation. Modification of the default configuration
have an impact on vertical communication.
It is not recommended to mix seldom updated status data (FC=ST) and
frequently updated measurement data (FC=MX) in the same data set
to minimize the bandwidth consumption in the network and to avoid
unnecessary publishing of unchanged status data.
The protection relay can have at maximum 14 configured data sets and
10 report control blocks for event handling. The maximum length for
a data set is 256 data attributes. The amount of data attributes within
a data object varies, however, a 615 series protection relay can have
1500 data attributes in data sets in total.
The protection relay does not support defining data on data attribute
level for data sets used for vertical reporting. Only data object level is
allowed.

Predefined horizontal communication data set

In horizontal communication the user normally has to engineer IEC 61850-8-1
GOOSE data sets. When IEC 61850-9-2 is used, the connectivity package
automatically creates a data set including data as defined in 9-2 LE: four currents and
four voltages with quality attributes.
1MRS757809 C
REC615 and RER615
Engineering Guide