Authorization; Audit Trail - ABB RELION SMU615 Technical Manual

1MRS758407 C
• Locally by connecting the laptop to the merging unit via the front communication
port.
• Remotely over LAN/WAN.
WHMI is enabled by default on the rear port and always enabled (cannot be
disabled) on the front port.
If the WHMI is accessed locally via the front communication port, the following
features are available.
• Setting the merging unit to test mode and testing of outputs
• Trip circuit lockout reset
• Restoring factory settings
2.4

Authorization

Four user categories have been predefined for the WHMI, each with different rights
and default passwords.
The default passwords in the merging unit delivered from the factory can be
changed with Administrator user rights.
Table 2: Predefined user categories
Username
VIEWER
OPERATOR
ENGINEER
ADMINISTRATOR
2.4.1

Audit trail

The merging unit offers a large set of event-logging functions. Critical system and
merging unit 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 system and security-related
SMU615
Technical Manual
User rights
Read only access
• Clearing indications
• Changing settings
• Clearing event list
• Clearing disturbance records
• Changing system settings such as IP address, serial baud rate or
disturbance recorder settings
• Setting the merging unit to test mode
• Selecting language
• All listed above
• Changing password
• Factory default activation
For user authorization for PCM600, see PCM600 documentation.
SMU615 overview
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