F 8628X (0650)
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10 Replace of the operating system
10.1 Upgrading/downgrading the operating system versions
of the F 8628X
The following instructions describe the upgrade/downgrade the operation systems for the
F 8628X module.
10.1.1 Upgrading/downgrading from version 2.x
To upgrade/downgrade version 2.x, the operating system file with extension
*.flash must be
loaded.
Since the F 8628X has the same operating system as the F 8627X, the F 8628X must use the
same operating system file.
After an upgrade to version 3.x and higher a protection mechanism is activated and only oper-
ating system files with the extension
*.ldb can be loaded.
10.1.2 Upgrading/downgrading from version 3.x and higher
To upgrade/downgrade version 3.x and higher, the operating system file with extension *.ldb
must be loaded.
Since the F 8628X has the same operating system as the F 8627X, the F 8628X must use the
same operating system file.
The upgrade/downgrade may be done only by HIMA service engi-
neers. It is recommended to change the operating system only in the
time of a shutdown of the plant.
When upgrading from version 2.x to another version, the user must
ensure that only the correct operating system file is loaded into the
corresponding module.
If the module F 8628X was loaded with any incorrect file, the function-
ality of the F 8628X is lost and can not be programmed any longer with
the diagnostic dialog ComEth. In this case the module F 8628X must
be programmed new by HIMA
.
After downgrading to version 2.x, the protection mechanism prevent-
ing incorrect files from being loaded is no longer active!
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