Siemens SIMATIC FM 452 Manual page 41

Create data blocks using the UDTs in the block folder of your S7 program. If
you use several modules, you require a separate set of data blocks for each
module.
Enter the module address in the channel DB and, if used in the diagnostic DB,
also at the address MOD_ADDR. You can also have the address entered
automatically by selecting the module in HW Config and then selecting a data
block in the "Properties" dialog with the "Mod Addr" button.
If your programming device/PC is connected to a CPU, you can now download
the FCs and DBs to the CPU.
FM 452 Electronic Cam Controller
C79000-G7076-C452-04
Programming the FM 452
6-3