Pilz PSSu E S INC - Manual (Page 30)

4.2 Configuration
4 Function description
Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: [email protected]
4-14
4.2.2.2 PSSu assignment in system environment B
PSSu assignment in system environment B 4- ][Funktionsbeschreibung_BA_Ein/Ausgabe ST-INC Sys B
Data access is via pre-defined I/O data types:
(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.
I/O data name I/O data type I/O data element Key
OutputData ST_O_INC ZeroPulseActiv: BOOL FALSE: Input C (zero pulse) inactive
TRUE: Input C (zero pulse) active
LatchOrMeasure: BOOL FALSE: Input L (latch pulse) inactive/period
length measurement inactive
TRUE: Input L (latch pulse) active/period length
measurement active
SetCounter: BOOL FALSE: Do not transfer default counter status
TRUE: Transfer default counter status
NewCounterValue: DWORD Default counter status
InputData ST_I_INC CurrentData: DWORD Current counter status in incremental encoder
or counter operating mode
LatchOrPeriod: DWORD Counter status after a latch or zero pulse or pe-
riod length
ZeroPulse: BOOL FALSE: No zero pulse at input C
TRUE: Zero pulse at input C
LatchOrMeasureDone:
BOOL FALSE: Period length or contents of latch mem-
ory not transferred
TRUE: Period length or contents of latch mem-
ory transferred
SetCounterDONE: BOOL FALSE: Default counter status not transferred
TRUE: Default counter status transferred
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 (message from en-
coder)
TRUE: Status input, Bit 1
State2: BOOL FALSE: Status input, Bit 2
(1)
TRUE: Status input, Bit 2