Table 4: Predefined user categories
Username User rights
VIEWER Read only access
OPERATOR •
Selecting remote or local state with (only locally)
• Changing setting groups
• Controlling
• Clearing indications
ENGINEER • Changing settings
• Clearing event list
• Clearing disturbance records
• Changing system settings such as IP address, serial baud rate
or disturbance recorder settings
• Setting the IED to test mode
• Selecting language
ADMINISTRATOR • All listed above
• Changing password
• Factory default activation
For user authorization for PCM600, see PCM600 documentation.
2.4.1 Audit trail
The IED offers a large set of event-logging functions. Normal process-related
events can be viewed by the normal user with Event Viewer in PCM600. Critical
system and IED security-related events are logged to a separate nonvolatile audit
trail for the administrator.
Audit trail is a chronological record of system activities that allows the
reconstruction and examination of the sequence of events and changes in an event.
Past user and process events can be examined and analyzed in a consistent method
with the help of Event List and Event Viewer in PCM600. The IED stores 2048
system 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.
User audit trail is defined according to the selected set of requirements from IEEE
1686. The logging is based on predefined usernames or user categories. The user
audit trail events are supported in IEC 61850-8-1, PCM600, LHMI and WHMI.
Table 5: Audit trail events
Audit trail event
Description
Configuration change Configuration files changed
Firmware change
Setting group remote User changed setting group remotely
Table continues on next page
Section 2 1YHT530004D05 D
615 series overview
40 615 series
Technical Manual
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