Siemens SINUMERIK 840DE sl Commissioning Manual page 454

Service and diagnostics
18.7 Action log
Channel status change
Window switchover
Writing NCK/PLC data
File access
Function calls in the NCK
(PI service)
Curr. program status
Write interval file
Save log as file for alarm(s)The alarm numbers for which a "crash log" is generated are speci‐
Generating a crashlog file
"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
440
NC/PLC states are logged via the information channel status. If this
information can be obtained in a timely manner, in many cases
these states can be used to verify the operation of the machine
control panel.
The form and dialog names (assigned by the programmer) are log‐
ged each time a window is opened or closed.
The writing of NCK and PLC variables is logged.
Copying to the NC is logged.
Some program calls, for example, ASUB, are logged.
Additional information for particular events is activated. For impor‐
tant alarms that require NC stop, NC start, or NC reset, actual val‐
ues and the current block are recorded for example.
The program ascertains which channel and which spindle are used
for the additional information.
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.
fied. The alarms are entered separated by a comma.
Bit 7 Bit 6 Bit 5
Save ac‐
tion log
Bit 4 Bit 3 Bit 2
Commissioning Manual, 12/2017, 6FC5397-1DP40-6BA1
Bit 1 Bit 0
SINUMERIK Operate (IM9)