08/2005 Commissioning HMI Advanced (IM4)
2 Functions/Parameterization
© Siemens AG, 2005. All rights reserved
SINUMERIK 840D sl/840D/840Di/810D Installation and Start-Up HMI (IAM) - 08/2005 Edition
IM4/2-55
Maximum file length
The maximum file length for INI files in Windows systems is 60 KB. If this limit is
exceeded, entries at the end are ignored.
Remedy: Omit the full comments in USER\PARAMT.ini, for example, since they
are also included in MMC2\PARAMT.INI.
2.4.2 Setting Alarm Log
Application
Two different methods are available saving the alarm profile on the hard disk. The
application and the disk load must be taken into account when selecting which
method to use. The required entries are made in the MBDDE.INI file.
Writing to alarm files always places a load on the same hard disk region. Various
methods can be chosen with the following control options.
There are a number of strategies for reducing the load on the disk. Multiple log files
can be maintained in parallel on the disk. With the multiple file strategy, the next file
is selected each time the HMI is started up. This reduces the load on the disk
hardware, both in the data area as well as the directory information area. In
addition, this strategy detects physical disk errors in the data area on startup and
avoids them by reallocating memory space.
The multiple file strategy can be selected by means of the DiskCare Ini file entry
File: "mbdde.ini",
Section: [PROTOCOL],
Entry: "DiskCare".
The following values are possible:
DiskCare=-1 The MBDDE server controls the alarm log in the memory.
The alarm log is saved to the hard disk if
it is displayed in the diagnostics operating area
or if the Alarm Cancel key is actuated.
DiskCare=0 The data is written to the log file immediately.
DiskCare=n Changes in the alarm status are written to the
log file if no change occurs within n seconds.
Änderung eintrat. In addition,
the alarm log is saved to the hard disk if
it is displayed in the diagnostics operating area
or if the Alarm CANCEL key is actuated.
DiskCare=-n n>1 specifies the number of parallel alarm files.
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