Siemens SIMATIC NET S7-400 Manual page 53

Adapting the configuration
1. In the STEP 7 configuration, replace the already configured CP with the new module; You
will find this in the hardware catalog.
2. As soon as you drag the new module from the catalog onto the module you are replacing,
the configured connections and data are adopted.
3. If necessary, modify the configuration according to your requirements, for example in the
Properties dialog for the Ethernet subnet.
4. Save and compile the project.
5. Download the configuration data to the target system again.
Effects
The CP 443-1 RNA adopts the settings of the EX20/EX30 as far as it supports them.
After the replacement, the CP is in the mode with the activated RNA interface with port 1 as
the only port in use (no PRP mode)
The following continues to apply:
● Functions, such as DHCP are not supported.
● The previously set IP parameters are adopted.
● If the replaced CP was configured as a PROFINET IO controller, the PROFINET line will
be detached from the module. The PROFINET line can then be assigned to another
PROFINET IO controller in STEP 7.
● Connections are assigned to the RNA interface.
● Explicit parameter assignments of the ports are lost since the CP 443-1 RNA does not
support this.
CP 443-1 RNA
Manual, 03/2019, C79000-G8976-C299-04
7.2 Replacing the modules used with CP 443-1 RNA
Upkeep and maintenance
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