ABB COM600S User Manual page 21

1MRS757275 COM600 series, version 4.1
IEC 61850 Proxy Server User's Manual
There are buffered and unbuffered report control blocks:
• In a Buffered Report Control Block (BRCB) internal events issue immediate
sending of reports, or buffer the events for transmission. This way the values of a
data object are not lost due to transport flow control constraints or loss of connection.
BRCB provides sequence-of-events functionality.
• In an Unbuffered Report Control Block (URCB) internal events issue immediate
sending of reports on a best efforts basis. If no association exists, or if the transport
data flow is not fast enough to support it, events may be lost.
Figure 3.4.3.2-1 Report control block properties
Table 3.4.3.2-1 Report Control Block object properties
Property/Parameter
Basic
Buffer Time
Value or value range/Default
Default: 0 milliseconds
report_control_block_properties.png
Description
With this value, RCB can be
configured to wait for other
events after the first change
before sending the report.
Value 0 means that a new
change is immediately reported
to the client. Configurable.
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