Siemens SINUMERIK 840D sl Commissioning Manual page 180

Service and diagnostics
16.6 Action log
Write interval file
Save log as file on alarm The alarm numbers for which a "crash log" is generated are
Procedure
174
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 entry": All entries are backed up directly, this
prevents data loss due to a power failure.
Notice: As CF cards only permit a limited number of write
accesses, this setting is not to be recommended for normal
operation.
• "time-controlled": New entries are stored for a particular
length of time. An additional input field appears in which you
can specify a time in seconds.
specified. The alarms are entered separated by a comma.
1. Select the "Startup" operating area.
2. Press the "HMI", "Diagnostics", and "Action log" softkeys
The "Action Log Settings" window opens.
3. Activate the "Logging on" checkbox to activate the action log.
4. Check the relevant checkbox if you want to acquire particular events in
the action log.
Commissioning Manual, 01/2008, 6FC5397-1DP10-3BA0
HMI sl (IM9)