Pilz PSSu E S INC 24V se - Manual (Page 25)

Function description
Operating Manual PSSu E S INC 24V se(­T)
1001380­EN­03 25
I/O data
name
I/O data type I/O data element Meaning
InputData ST_I_INC CurrentData:
DWORD Current counter status in incre­
mental encoder or counter operat­
ing mode
LatchOrPeriod:
DWORD Counter status after a latch or zero
pulse or period length
ZeroPulse: BOOL FALSE: No zero pulse at input C
TRUE: Zero pulse at input C
LatchOrMeas­
ureDone: BOOL FALSE: Period length or contents
of latch memory not transferred
TRUE: Period length or contents of
latch memory transferred
SetCounterDONE:
BOOL FALSE: Default counter status not
transferred
TRUE: Default counter status trans­
ferred
Underflow: BOOL FALSE: No counter underflow
TRUE: Counter underflow
Overflow: BOOL FALSE: No counter overflow
TRUE: Counter overflow
State1: BOOL FALSE: Status input, Bit 1 (mes­
sage from encoder)
TRUE: Status input, Bit 1
State2: BOOL FALSE: Status input, Bit 2 (1)
TRUE: Status input, Bit 2
(1) When configuring the module, users can determine the evaluation method for the status
input: single, redundant or diverse. Transmitting the status via two bits enables simple fault
detection: Two redundant bits must always be the same, two diverse bits must always be
different, otherwise the transmission is faulty.