Pilz PSSu E F DI OZ 2 - Manual (Page 16)

Function description
Operating Manual PSSu E F DI OZ 2(­T)(­R)
21328­EN­05 16
} Optimisation of ST process image by combining adjacent bits of the same type.
Configuration „*“
INFORMATION
The PSSuniversal Configurator on the PSS WIN­PRO system software
must be used to define the I/O­Groups to which FS inputs and outputs be­
long (SafetyBUS p). The PSSu can be divided into sections A and B for this
purpose.
All the FS outputs on a PSSu always belong to section A.
All the FS inputs on a PSSu always belong to section B.
Section A and section B on a PSSu may belong to different I/O­Groups.
Further information on configuration is available in the PSSuniversal Configurator's online
help.
4.2.1.3 Addresses in the process image
The module occupies two consecutive bit addresses for the input in the FS­PII:
} Bit address 1: Input I0 for connecting the feedback loop (connection terminal).
} Bit address 2: Internal FS input I1 for transmitting open circuit detection (no connection
terminal!).
The module occupies one bit address for the output in the FS­PIO.
The display in the ST process image depends on the configuration. With read access ("R"),
the sequence in the ST­PII is:
} Bit address 1: FS output O0+
} Bit address 2: Input I0 for connecting the feedback loop
} Bit address 3: Internal FS input I1 for transmitting open circuit detection
With write access ("&"), the Bit in the ST­PIO is used to switch the FS output with the local
enable principle.
Configuration SafetyBUS p Standard bus system
FS­PII FS­PIO ST­PII ST­PIO
None 2 Bit
(e.g.: 32.00 …
32.01)
(e.g.: 32.00) 1 Bit
(e.g.: 32.00) ­ ­ ­ ­ ­ ­
Read ST (“R”) 3 Bit ­ ­ ­
ST read and write
(“&”) 3 Bit 1 Bit