Function description
Operating Manual PSSu E F PS(-T)
21292-EN-06
16
4.3.1.1
Addresses in the process image
If read access is configured, the module occupies 8 consecutive bit addresses in the ST-PII
process image. The first supply module after the head module on slot 0 supplies status in-
formation about the PSSu system.
Configuration
SafetyBUS p
Standard bus system
FS-PIO
ST-PII
ST-PIO
None
- - -
- - -
- - -
Read ST
(“R”)
8 Bit
- - -
INFORMATION
Further information on the structure and contents of the status byte can be
found under “Operation”.
4.3.1.2
FS error behaviour
In the case of a safety-related error on an FS output, all FS outputs in the affected I/O-
Group (SafetyBUS p) are shut down.
In the case of a safety-related error on an FS input, the process image of all FS inputs in
the affected I/O-Group (SafetyBUS p) is set to zero.
The I/O-Group switches to a STOP condition. An error telegram is then triggered on Safety-
BUS p and the error is entered in the PSSuniversal error stack.
