LAWO mc256 MKII, Техническое руководство

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mc²56 MKII Technical Manual V5.10.2/1 238
Chapter 4: Service/Maintenance
System Logfiles
System Logfiles
During operation, the system generates and stores logfiles on the control system. This allows you to export the
files to assist Lawo
service with fault-finding.
There are 4 principle logfiles:
·
alarm.log - global alarm errors (the last 5000).
·
alarm.log.old - archived global alarm errors (the previous alarm.log file).
·
messages - messaging errors generated by the control system (the last 5000).
·
messages.old - archived messaging errors (the previous messages file).
Logfiles can be copied to USB, from the console GUI, using the File display, see the "mc²56 MKII Operators
Manual":
Alternatively, you can monitor the contents of a log file, remotely from your computer, using the Web Browser
Interface .
Ø
Timestamping a logfile
From V4.24 software onwards, two enhancements have been made:
·
Timestamping - click on the LAWO logo, from the Central GUI's title bar, to create a time stamp in the
messages file. This marks the logfile at a moment in time, and can assist Lawo's service department
when diagnosing system behaviour.
·
DSP change - whenever the DSP configuration changes (by loading a production, changing the DSP
configuration or switching to a redundant DSP card), information about every DSP card is printed in the
alarm.log . The information is formatted as follows:
New DSP card role for {HDCore 0, Slot 14}: active (role index 1)
New DSP card role for {HDCore 0, Slot 12}: active (role index 2)
New DSP card role for {HDCore 0, Slot 10}: active (role index 3)
Ø
Reading a logfile
From V5.0 software onwards, each line within the messages file is formatted in three sections:
<Software Module> <Error Type> <Details>
The
<Error Type>
indicates the severity of the error as follows:
·
DEBUG - information for developers, not usually seen once a release is issued.
·
INFO - general information, not a real error.
·
WARNING - an error with low impact.
·
ERROR - an error with moderate impact.
·
FATAL - a serious error which could lead to system crashes.
By searching the messages file for the appropriate text - e.g. FATAL - you can quickly identify the relevant
information.