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SINUMERIK 840C (IA)
You can reactivate the write enable function on the hard disk of the MMC CPU
making an entry to the configuration file of the master control CONFIG (PROT-
MODE DISK). This way you can provide for the same compatible behavior as is
applicable to systems with SW 6 and lower.
In addition, a cache has been built in for alarm descriptions (SW 6 and higher).
This reduces the read accesses to a minimum. The last 50 alarm occurrences
are listed in the default memory setting of this cache. The number can be preset
by entering the following command in the configuration file CONFIG:
MELDCACHE <n>
Be sure that a capacity of approx. 100 byte RAM is reserved for each item in the
cache.
Use the command MELDCACHE 0 to provide for the same compatible behavior
as is applicable to systems with SW 6 and lower.

4.4.3 BEDCONF configuration file

Description Various BEDCONF files are available.
The configuration data stored in the file BEDCONF parameterize the operator
system with the MMC areas to be managed and the globally set system charac-
teristics. These files are ASCII files and can be edited. To edit it, press “PC data”
in the MMC area DIAGNOSIS.
!Caution
Errors in this file can cause system failure!
Unassigned parameters must not be changed.
4 MMC Area Diagnosis
4.4.2 Configuration file CONFIG
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