Siemens SINAMICS PERFECT HARMONY GH180 Function Manual page 400

Software user interface
9.4 Security Measures
Key Order of Precedence
The keys have an order of precedence/recognition when the DCR is booted. This means that if
multiple keys are saved to a USB flash drive, the order is as follows:
1. nxgemergency
2. nxgupdate
3. nxgrecover
4. nxgrecover.factory
Key Descriptions
• Parameter 7749 – Create Factory Key
– This keypad function creates a file named "nxgrecover.factory" on USB flash drive. It is a
• Parameter 7750 – Create Restore Key
– This keypad function creates a file named "nxgrecover" on USB flash drive. It is a last resort
• Parameter 7751 – Create Emergency Key
– This keypad function creates a file named "nxgemergency", the active base system file (as
• Parameter 7752 – Create Update Key
– This keypad function creates a file named "nxgupdate" on USB flash drive. It allows the
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last resort function as it will reset/delete all customer-specific DCR parameter settings and
load the oldest base system. This key is useful mostly for factory personnel when a
configuration or filesystem has been corrupted. The nxgproplus login password will be
nxgproplus after running this key recovery.
function as it will reset/delete all customer-specific DCR parameter settings and load the
newest base system ONLY if an update to the base software was performed. If an update
was not made, the key acts the same as the nxgrecover.factory key. This key is useful
mostly for factory personnel when a configuration or filesystem has been corrupted. The
nxgproplus login password will be nxgproplus after running this key recovery.
shown on Debug Tool – Software/Firmware Versions), active SOP hex files, and current
configuration file on USB flash drive. It is a first resort function as it captures the current
state of the DCR. This key is useful mostly for customer-facing personnel when a
filesystem has been corrupted, or another DCR needs to be duplicated including the
configuration parameters and SOP file. The nxgemergency key can be used on another
DCR (or 10 other DCRs) for a total of 10 times. The nxgemergency key can always be used
on the DCR from which it was created. The nxgproplus login password will be nxgproplus
after running this key recovery.
DCR to accept new base system software (an "init" file). Renaming "init" files IS NOT
SUPPORTED; if renamed, the file will be ignored. The user MUST make a copy of the
configuration file and SOP files so that you can re-load all customer-specific DCR
parameters. The nxgproplus login password will be nxgproplus after running this key
recovery.
NXGPro+ Control Manual
Operating Manual, A5E50491925A