20.4.4
Signals
Table 831:
ATHSTAT Output signals
Name
Type
Description
USRBLKED
BOOLEAN
At least one user is blocked by invalid password
LOGGEDON
BOOLEAN
At least one user is logged on
The output signal USRBLKED is not valid if the IED is Centralized
Account Management enabled.
20.4.5
Settings
The function does not have any parameters available in Local HMI or in Protection
and Control IED Manager (PCM600)
20.4.6
Operation principle
Authority status (ATHSTAT) function informs about two events related to the IED
and the user authorization:
•
the fact that at least one user has tried to log on wrongly into the IED and it was
blocked (the output USRBLKED)
•
the fact that at least one user is logged on (the output LOGGEDON)
Whenever one of the two events occurs, the corresponding output (USRBLKED or
LOGGEDON) is activated. The output can for example, be connected on Event
(EVENT) function block for LON/SPA.The signals are also available on IEC 61850
station bus.
20.5
Self supervision with internal event list INTERRSIG
20.5.1
Functionality
Self supervision with internal event list function listens and reacts to internal system
events, generated by the different built-in self-supervision elements. The internal
events are saved in an internal event list presented on the LHMI and in PCM600 event
viewer tool.
20.5.2
Function block
1MRK502052-UEN B
Section 20
Basic IED functions
1097
Technical manual
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