Fault Record Time Stamp; Dnp3 Points; Point Configuration; Class Assignment - ABB 620 Series Manual

1MAC459571-IB C
3.2.3.2
3.3
3.3.1
3.3.2
620 series ANSI
Communication Protocol Manual

Fault record time stamp

When a new fault occurs, the fault number (LD0.FLTMSTA1.OpCnt.stVal) increases,
and it is stored in the DNP AI event buffer. Other points associated with the fault record
(D0.FLTMSTA) which change are also entered in the DNP AI event buffer. They are also
time stamped, but the official time of the fault is the event time stamp on the
LD0.FLTMSTA1.OpCnt.stVal point.
Fault information, including time stamps, is retrieved from the IED by a DNP master using
a Class1_Class2_Class3 scan or an integrity (Class1_Class2_Class3_Class0) scan. The
AI event default variation should be set to include time stamps. It is possible that not all
points of the fault generate events. This happens when the point of the new fault has the
same value as the previous fault.

DNP3 points

Point configuration

The DNP3 point map is configurable in PCM600. All points in the IED may be remapped.
In PCM600, the unmapped points in the variables list on the left may be inserted to the
active point list on the right.
Point gaps may be inserted if wanted. Point gaps cannot be read by the client.

Class assignment

Class assignment allows the events generated in the IED to be reported as DNP3 events.
Some configurations exceed the class assignment possibilities defined by the standard.
Table 8: DNP3 point map configuration
Configuration
None
Class 0
Class 0 and any class 1,2,3
combination
Class 1, 2 or 3 combination
Vendor-specific implementation
Description
Integrity class 0 scan returns gap.
Value is available only via static scan.
Point does not generate events.
Point is returned in the class 0 scan.
Point does not generate events.
Point is returned in the class 0 scan.
Point generates events for the selected class or classes.
Point is not returned in the class 0 scan.
Point generates events for the selected class or classes.
Section 3
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