Lenze E84DSxxx - Manual (Page 336)

9 Diagnostics & error management
9.6 Logbook
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Lenze · 8400 protec StateLine · Reference manual · DMS 4.2 EN · 03/2013 · TD05
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9.6.1 Functional description
The structure of the logbook corresponds to a ring buffer:
9.6.2 Filtering logbook entries
The logbook adds new entries to the ring buffer after they have been passed through a
parameterisable filter. This filter helps you to exclude certain events from being entered into the
logbook which would trigger a certain error response (fault, trouble, warning, information, etc.).
C00169 (bit 1 ... bit 6) includes a bit coded specification of the events which are to be entered into
the logbook. In the Lenze setting, all events are entered into the logbook.
Counter for multiple entries
In order to prevent the ring buffer from overflowing with identical errors with frequent occurrence
e.g. during commissioning, identical errors will not lead to new line entries in the configuration of
the logbook in the Lenze setting. Instead, one counter will be counted up for this error.
• The time of the error is always the time of its first occurrence. Hence, a new logbook line will
only be generated if a new error occurs.
• The error counter can be deactivated by resetting bit 9 in C00169 .
• As long as free logbook memory is available, the entry is placed in
the next free position within the memory ().
• If all memory units are assigned, the oldest entry () is deleted for
a new entry.
• The newest entries will always remain available.

Note!
In the event of a supply voltage failure, the logbook is saved and reloaded automatically
when the controller is switched on. This ensures that the error history of the device does
not get lost. For this reason it is very important to act with caution when deleting the
logbook entries.


Q
Q
Q
Q
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Q

Note!
Events with the "No response" setting are not entered into the logbook.