ProSoft Technology PLX81-EIP-61850 - Manual (Page 93)

PLX8x-EIP-61850 ♦ Communication Gateway Reference
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IEC 61850 Client User Manual
ProSoft Technology, Inc. Page 93 of 167
July 2, 2015
RptID is derived.
The entire contents of Table 24 is NOT created as tags and therefore not brought
over to the other protocol. Only the Tag Names (mapped Data Attributes) are
available to the other protocol. Although the IED buffers data changes, only the
most recent data values sent by the IED are processed by the gateway.
There are two types of Report Control Blocks (RCBs):
1. Buffered Report Control Blocks (BRCB)
2. Unbuffered Report Control Blocks (UCRB)
Buffered Report Control Block
The BRCB report controls are used by a Client implementing a well-defined
functionality, for example, a SCADA master. If the IEC 61850 Client cannot
access the report, it’s probably due to access control. When one BRCB for the
IED is in use, no other Clients may access it.
The configuration file gives the IEC 61850 Client driver the following:
 Domain Name
 Data Path
 Report ID
 Enable Flag
 Intpd
 Confrev
 Trgopdchg
 Tag Names
The Tag Names are a list of the Data Attributes as defined by the DATA-SET for
the report. ProSoft ProSoft 61850 Configuration Manager parses through the
DATA-SET definition to determine the lowest level of the Data Attributes
contained in it and creates those tags in the configuration file with the proper data
type. You can choose which elements of the DATA-SET are mapped to Modbus.
For those DATA-SET Data Attributes that are not mapped, ProSoft ProSoft
61850 Configuration Manager creates dummy tags as place holders for those
Data Attributes. The dummy tags take up space in the tag database, even if they
are not mapped to the Modbus driver.
The IEC 61850 driver processes report data from the IED by offsets, not by
actual Data Attribute name. If the DATA-SET on the IED changes, you must re-
import the CID/SCD file into the ProSoft ProSoft 61850 Configuration Manager to
reconfigure the gateway, so that the gateway’s internal processing of the report is
done correctly.
If the BRCB is mapped in the gateway’s configuration, then the IEC 61850 driver
automatically turns
on the Report Enable (RptEna) for the IED’s BRCB.