The basics of counting, measurement and position detection
2.2 Basics of counting, measuring and position input (TM Count, TM PosInput, Compact CPU)
Counting, measurement and position detection
38 Function Manual, 12/2017, A5E32009889-AG
Synchronization by digital input
You can trigger synchronization by edges at a digital input.
The figure below shows an example for single synchronization by an edge at a digital input:
After synchronization is enabled for counting in an upwards direction, the counter is
synchronized at the first rising edge at the configured digital input. Until the control bit
(Page 185) EN_SYNC_UP has been reset and set again, any additional rising edge at the
digital output is ignored. The counter can then be synchronized again.
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