ABB RELION Series Technical Manual page 42

Grid automation
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Section 2
REC615 and RER615 overview
36
Audit trail is a chronological record of system activities that allows the reconstruction
and examination of the sequence of system and security-related events and changes in
the protection relay. Both audit trail events and process related events can be
examined and analyzed in a consistent method with the help of Event List in LHMI
and WHMI and Event Viewer in PCM600.
The protection relay stores 2048 audit trail events to the nonvolatile audit trail.
Additionally, 1024 process events are stored in a nonvolatile event list. Both the audit
trail and event list work according to the FIFO principle. Nonvolatile memory is based
on a memory type which does not need battery backup nor regular component change
to maintain the memory storage.
Audit trail events related to user authorization (login, logout, violation remote and
violation local) are defined according to the selected set of requirements from IEEE
1686. The logging is based on predefined user names or user categories. The user audit
trail events are accessible with IEC 61850-8-1, PCM600, LHMI and WHMI.
Table 4:
Audit trail events
Audit trail event
Configuration change
Firmware change
Firmware change fail
Attached to retrofit test case
Removed from retrofit test case
Setting group remote
Setting group local
Control remote
Control local
Test on
Test off
Reset trips
Setting commit
Time change
View audit log
Login
Logout
Password change
Firmware reset
Audit overflow
Violation remote
Violation local
Description
Configuration files changed
Firmware changed
Firmware change failed
Unit has been attached to retrofit case
Removed from retrofit test case
User changed setting group remotely
User changed setting group locally
DPC object control remote
DPC object control local
Test mode on
Test mode off
Reset latched trips (TRPPTRC*)
Settings have been changed
Time changed directly by the user. Note that this is not used
when the protection relay is synchronised properly by the
appropriate protocol (SNTP, IRIG-B, IEEE 1588 v2).
Administrator accessed audit trail
Successful login from IEC 61850-8-1 (MMS), WHMI, FTP or
LHMI.
Successful logout from IEC 61850-8-1 (MMS), WHMI, FTP or
LHMI.
Password changed
Reset issued by user or tool
Too many audit events in the time period
Unsuccessful login attempt from IEC 61850-8-1 (MMS),
WHMI, FTP or LHMI.
Unsuccessful login attempt from IEC 61850-8-1 (MMS),
WHMI, FTP or LHMI.
1MRS758755 A
REC615 and RER615
Technical Manual

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