KEB COMBICONTROL C6 HMI, Инструкция по эксплуатации

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Figure 39
Commissioning the device
4.1 Backup design
The C6 HMI / C6 HMI LC is equipped as standard with two memories: a NAND flash
memory and an e-MMC memory card. Purpose of the NAND memory is to store the
boot loader (is used during the start-up of the C6 HMI / C6 HMI LC), the operating
system and all executable programs. Writing on the NAND memory can be switched
on and off with a special program in order to protect the saved data on the NAND
memory.
The e-MMC memory cards can be used to store other data such as process data or
other executable programs. It is not possible to switch off the writing of MMCs. You
can always read and write the eMMC memory. This memory is used to store data
which are generated during the operation of the machine or plant and monitored by
the C6 HMI / C6 HMI LC.
4.2 Internal memory
The NAND memory, as default is read only. In this manner it is protected against da-
ta loss; but the NAND memory can be made writeable.
To make the NAND memory writable, click in the Windows folder of the C6 HMI /
C6 HMI LC on MakeNANDWritable (see picture below). By this way, you can store
some exe files permanently safe. After the operation you can make the NAND
memory “read only” as before.
In order to set the NAND memory to "read only", click in the C6 HMI / C6 HMI LC
Windows folder on MakeNANDReadOnly (see picture below).