Installation, connection, commissioning, removal
5.4 Commissioning
CP 443-1 Advanced
50 Equipment Manual, 03/2023, C79000-G8976-C256-07
Removing the C-PLUG
Remove the C-PLUG from the compartment using a screwdriver.
Figure 5-3 Removing the C-PLUG
It is only necessary to remove the C-PLUG if a fault occurs on the CP.
Function
If the C-PLUG has not been written to (factory status), when the device starts up all
configuration data of the CP is automatically backed up.
A basic device with an inserted C-PLUG automatically uses the configuration data of the
inserted C-PLUG when it starts up. This is, however, only possible when the data was written
by a compatible device type.
This allows fast and simple replacement of the basic device. If a device is replaced, the C-
PLUG is taken from the failed component and inserted in the replacement. As soon as it starts
up, the replacement automatically has the same device configuration as the failed device.
Using a CPLUG with old configuration data
Use only C-PLUGs that are formatted for the CP 443-1 Advanced. CPLUGs that have already
been used and formatted in other device types must first be formatted for the CP 4431
Advanced.
You do this with STEP 7 / special diagnostics. For more detailed information, refer to the
online help in the topic "General Diagnostics Functions - C-PLUG Diagnostics Object".
After formatting, all data areas are deleted on the C-PLUG. The configuration data is adopted
by the CPU only after reloading or after turning on the power supply again.
Formatting a C-PLUG
Note the restrictions when a protection level is configured for the CPU. See section Effects of
protection levels (Page 57) for information on this.
Diagnostics / displays on the device
General malfunctions of the C-PLUG are signaled by the diagnostics mechanisms of the CP
(LED display). If you insert a C-PLUG containing the configuration of an incompatible device
type, this is also indicated by the LED display. See section LEDs (Page 37)
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