Pilz PSSu E S INC - Manual (Page 20)

4.1 Module features
4 Function description
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Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: [email protected]
4-4
The module can evaluate the counter pulses once, twice or four times
(configuration in the PSSu Configurator or PAS4000).
 Single evaluation:
Each rising edge at channel A increases the counter status.
 Double evaluation:
Each rising and each falling edge at channel A increases the counter
status.
 Quadruple evaluation (default):
Each rising and each falling edge at channel A and channel B increas-
es the counter status.
4.1.4 Counter operating mode
Counter operating mode 4- ][Funktionsbeschreibung_Ein ST-INC BA Zhler
In counter mode, the module's dual-pole, differential inputs A, B, C have
the following functions:
 Input A (Count)
Input A is the input for the encoder's counter pulses. The module
counts each rising edge.
 Input B (Up/down)
At a 0 signal the module counts forwards. At a 1 signal the module
counts backwards.
 Input C (Gate/Latch)
The counter is stopped with a 1 signal. The module ignores the coun-
ter pulses at the input until a 0 signal returns.
B+
A+
2x
4x