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14.4 Performing Diagnostics
The M-Unit can query the lock for a collection of useful status info from the lock including a validity check on the
lock electronics, green and red leds and the buzzer. Click on "Get" to display the results:
The Diagnostics will repeat in a continuous loop until it is stopped either by removing the M-Unit PDA from the lock
vicinity or by selecting the "Stop" button. This loop function is useful for verifying all the keys on the lock keypad
etc. [Note: The current beta version of the M-Unit software will only take a "snapshot" of the diagnostics status
once and will display it as shown above. There is no "Stop" button and no continuous loop diagnostics at this time].
15. Audit Logs
The E-Plex 5900 keeps a log entry for every transaction or event encountered in its memory. The audit log entries
are stored in a circular list, where newer ones overwrite older ones. Events like any DESFire card user access,
passage mode on/off status etc are logged and transferred to the headend system automatically. Note that audit
og entries in the lock are never erased from the lock; the only time an audited event gets erased is when it is
overwritten by a more recent event when the lock audit buffer is full. The lock can store up to 30,000 audits. For
the beta version, only the last 10 audit events can be stored on a user's card to be read on the headend system
later; however, in the final version all 30,000 audited events can be transferred to the M-Unit to be processed at
the headend system.
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