Siemens SINUMERIK 840D sl Commissioning Manual page 801

System settings
1.1 Delivery condition of the system
Scope of validity
This document is valid for all systems that are supplied with Linux as operating system on
the CompactFlash Card, such as all NCUs of the type NCU 7x0.
Directory on the CompactFlash card
A Linux partition as well as a FAT partition are available on the CompactFlash Card. The
memory space of the CompactFlash Card is occupied mainly by the Linux-EXT3 partition
containing the system software and the user data. A 2MB large FAT partition still exists but
only for internal administration purposes.
When the system is in operation, the following directories (this is a selection and not a
complete list) are available in the EXT3 partition on the CompactFlash Card:
Directory
/siemens
/addon
/oem
/user
/system
/user/system/etc
/user/common/tcu
/var/log/messages
Note
Files in the directory under /user always have priority over files with the same name in the
directory /oem → /addon → /siemens.
NCU operating system (IM7)
Commissioning Manual, 03/2013, 6FC5397-1DP40-3BA1
Use
Reserved for Siemens system software
Reserved for Siemens add-on software
Additional software and configurations of the machine manufacturer
Storage of user data
•
Configuring the HMI application
•
Data that are created when commissioning the system using the HMI
•
application.
Linux operating system
File basesys.ini (modifications possible)
TCU configuration files
System log file (same as event.log under Windows)
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