Programming FCs (Functions) and FBs for S7 Ethernet CPs
144 SIMATIC NET NCM S7 for Industrial Ethernet
C79000-G8976-C129–06
Notice
Please remember that if you replace a module, you must only use the blocks per-
mitted for the configured CP type in the user program.
This means:
SIf you replace the module without adapting the configuration data to the
possibly newer module type, you do not need to make any changes to the
blocks used.
SIf you replace the module and you do adapt the configuration data to the newer
module type, you must use the block versions approved for this module type.
We recommend that you always use the latest block versions for all module types.
With the older module types, this recommendation assumes that you are using the
latest firmware for the particular block type.
You will find more information on replacing blocks in our Customer Support on the
Internet.
The manuals /1/ contain information on the compatibility of the S7-CPs and the
corresponding blocks (FCs / FBs).