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Programming the MOBY-ASM on PROFIBUS
B.2 Cyclic Control Word between Master and MOBY-ASM
After start-up, the cyclic word of MOBY-ASM takes on the following states (bits 8 to 15 are
shown).
Synchronizing of command and acknowledgment counters
The command (BZ) and acknowledgment (QZ) counters are synchronized during a start-up.
The ASM sets QZ = 0 and BZ = 1. The start-up can be triggered by both the ASM (return of
power) and the user (init_run_).
Figure B-3
Figure B-4
B-6
Power-up timing initiated by user
Power-up timing of ASM initiated by power failure
Function manual, Release 03/2006, J31069-D0166-U001-A2-7618
FB 45
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