Pilz PSSu K F INC - Manual (Page 15)

Function description
Operating Manual PSSu K F INC
1001688­EN­06 15
C+
G
L
a b c d e
B+
A+
Legend:
} a: The counter counts forwards because there is 0 signal at channel B.
} b: At the next rising edge at channel A, the counter counts backwards because there is
a 1 signal at channel B.
} c: The counter is disabled because there is a 1 signal at input C.
} d: The module has received a latch pulse. Provided the function is activated, the
counter value is copied into the latch memory with a rising edge at input L.
} e: The counter is disabled because there is a 1 signal at input G.
4.1.5 Functions
4.1.5.1 Measure period length
The module can record the period length of the counter pulses on channel A. The period
length is the time between two rising edges at channel A. It is transferred to the process im­
age of inputs as multiple of 200 ns.
Prerequisite: This function is configured in PAS4000.
a
PIO
PII
b c d
Legend:
} PIO: I/O datum OutputData.LatchOrMeasure
} PII: I/O datum InputData.LatchOrMeasureDone