Siemens SINUMERIK 840D sl Commissioning Manual page 347

Write interval file
Save log as file for
alarm(s)
Generating a crashlog file
The "actual_crashlog.com" is a backup file of the actual log when a critical event occurs (for
example, emergency stop alarm).
The file is then no longer stored in the ring buffer of the action log and can no longer be
overwritten with new entries.
The entries in the crash log file are only overwritten when yet another critical events occurs.
At the beginning, the file has no entries and is only written to after the following events:
● Interface signal DB19.DBX0.6 "Save teleprinter log" changes from 0 to 1.
● The alarm entered in the "Save log as file for alarm(s)" entry field is output.
Interface signal
DB19 (PLC → HMI)
DBB00
SINUMERIK Operate (IM9)
Commissioning Manual, 03/2013, 6FC5397-1DP40-3BA1
Settings for updating files:
• "automatic": The action log saves the information to an internal
buffer. If the buffer is full the entries are written to the CF card.
The entries may be lost when the controller is switched off.
• "after every event": All entries are backed up directly, this
prevents data loss due to a power failure or similar.
Notice: As CF cards only permit a limited number of write
accesses, this setting is not recommended for normal
operation.
• "time-controlled": New entries are backed-up for a particular
length of time. An additional input field appears in which you
can specify a time in seconds.
The alarm numbers for which a "crash log" is generated are
specified. The alarms are entered separated by a comma.
Bit 7 Bit 6 Bit 5
Save
action log
Bit 4 Bit 3 Bit 2
Service and diagnostics
18.8 Action log
Bit 1 Bit 0
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