D300529 0115 - BL67 I/O modules
12-71
BL67-1CNT/ENC
Periodical synchronization:
– Active, if parameter byte "synchronization with Z": byte 1, bit 5 = 1.
– In periodical synchronization, the synchronization with the load value is done with the first
and every following 0 → 1 rising edge at input Z, after setting the release bit
1 upper count limit
2 load value
3 lower count limit
4 no synchronization without release
5 release set
6 1. synchronization
7 2. synchronization
8 stop synchronization
9 start synchronization
10 1. synchronization after new release
Figure 12-37:
Periodical
synchronization
t
t
t
t
45 6 7 8 9
AT
1
2
3
Release
Synchronization release (SYNC_REQ)
Synchronization with Z
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