Programming the FM 351
6-3
FM 351 Positioning Module
C79000-G7076-C351-02
• If your programming device/PC is connected to a CPU, you can now download
the FCs and DBs to the CPU.
The following schematic shows how the FM 351, FCs, DBs and OBs communicate.
Startup
e.g. OB100
Cyclic operation, parameter
assignment and control
e.g. OB1
FM 351
Channel DB
Parameter DB
FC ABS_CTRL
Channel DB
FC ABS_INIT
DB_NO
DB_NO
PARADBNO
Diagnostic DB
FC ABS_DIAG
DB_NO
Jobs
Function switches
Control signals
Return signals
Diagnostic buffer
Figure 6-1 Data Exchange between FCs, DBs and the FM 351
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