![background image](http://html.mh-extra.com/html/siemens/cp-343-5/cp-343-5_manual_375977005.webp)
Features / Services
B2–5
CP 343-5 for PROFIBUS / Manual Part B2
Release 11/2002
C79000-G8976-C160-02
The module can be configured via the MPI or LAN/PROFIBUS.
Note
If you change the bus parameters in the configuration data, you can only download
these configuration data to the CP via the MPI.
Programming – Using Blocks
”Off–the–peg” blocks (FCs/FBs) form the interface in your STEP 7 user program to
some of the communication services available with the PROFIBUS CP. You will
find a detailed description of these blocks in the NCM S7 for PROFIBUS manuals.
Notice
We recommend that you always use the latest block versions for all module types.
You will find information on the latest block version and links to download the
current blocks in our Customer Support on the Internet:
http://www4.ad.siemens.de/view/cs/en/8797900
If you are using older block types, this recommendation only applies if you also
have the latest firmware version.
You will find further information and Internet addresses in the Preface of the
General Part of this manual.
Replacing a Module without a Programming Device
The CP supports the option of storing the configuration data of the CP in the CPU.
If you use this option, you can replace the module without having to reload the
configuration data from the programming device.
The configuration data are then stored in the load memory of the CPU. The stored
configuration data are protected from power outage by battery backup or by
plugging an EPROM card into the CPU.