Configuration and operation
6.3 Effects of protection levels
CP 443-1 Advanced
Equipment Manual, 03/2023, C79000-G8976-C256-07
57
Change from RUN to STOP:
The CP changes to STOP (transitional phase with LED display "Stopping").
The reaction is as follows in STOP:
• Established connections (ISO transport, ISOonTCP, TCP, UDP connections) are terminated.
• The following the functions are disabled:
– Time-of-day synchronization
– PROFINET IO
• The following functions remain enabled:
– The configuration and diagnostics of the CP (system connections for configuration,
diagnostics, and PG channel routing are retained).
– Web diagnostics
– FTP / FTPS access to the file system
– HTTP / HTTPS access
– Routing function
6.3 Effects of protection levels
Module access protection on the CP
If you enable the protection level "Status dependent" in the CP configuration (“Options” tab),
the following actions are only possible when either the CPU or the CP is in the STOP state:
• Changing the operating status of the CP (RUN → STOP)
• Resetting / memory reset
Note the additional restriction if a protection level of the CPU is enabled.
• Formatting the C-PLUG
Note the additional restriction if a protection level of the CPU is enabled.
• Loading firmware using the NCM Firmware Loader
Further restrictions on access to the CP result from configuring a protection level for the CPU.
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