ABB RELION REX615 - Diagnostic Values

• Signals selected in communication management (instantaneous or deadband
supervised value)
Engineering of dataset and report control blocks is described in IEC
61850 Engineering Guide.
Measurement data
Typically, the commonly used measurement data, such as current/voltage
measurement is included in IEC61850 default dataset with data_change +
data_update trigger options. In this scenario the update rate depends on the set
'deadband' setting of the measurement function itself. This can be adjusted by
the function specific deadband settings, described more in the Technical Manual.
In addition, if the default report control trigger options have been changed, and
cyclical triggering is used instead of data update + data change, the update rate is
the integrity period IntgPd of the report control block. This may be useful for cyclical
update of specific measurement data.
Some measurement functions do not have internal deadband supervision in
the function. In this case the datasets integrity period IntgPd (see IEC61850
Engineering Manual) defines the update speed of the data.
Third possibility is, that the measurement data does not reside in a IEC61850
dataset. In this scenario the protocol internally polls the analog value once per
second. If the one second poll period is more suitable for the application, it is also
possible then to remove the specific measurement data points from dataset in
IEC61850 tool.
Indication data
Commonly used indication data, such as protection start/trip and other important
values are by default included in a IEC61850 dataset. If the protocol has CMT
mappings of indication data that does not belong to a IEC61850 dataset, the
protocol adds this data automatically to an internal update mechanism that enables
still a fast update for the time-critical events.
3.8.5 Diagnostic values
The diagnostic values can be edited via Application Configuration> Protocols> IEC
60870-5-101> 104 (n).
Table 14: Diagnostic values
Setting Description
STATUS True if the protocol instance is active
Reset counters Diagnostic counters reset. As defined by the standard, this
does not reset the security diagnostic counters (see Ta-
ble16).
Received frames Number of received IEC 60870-5-104 protocol frames
Transmitted frames Number of IEC 60870-5-104 protocol frames
Link errors Number of link layer errors
Physical errors Number of physical layer errors
Table continues on the next page
Vendor-specific implementation 2NGA001859 A
32 REX615
IEC 60870-5-104 Communication Protocol Manual