Function description
Operating Manual PSSu K S 8DI 8DO 0.5
22065-EN-09
13
4.2.3
Integrated protection mechanisms
When the PSSu E F PS1(-T) or PSSu E F PS2(-T)(-R) is used to supply the system, the
module supply is buffered for 20 ms if the supply voltage is interrupted.
The module provides the following diagnostic data:
}
Start-up error
}
Configuration error
}
ST communication error
}
Bus termination error
}
Temperature error
4.2.4
Reaction times
Information on the reaction times of the inputs/outputs can be found in the "PSSuniversal"
System Description and the System Description "Automation system PSS 4000".
4.3
Configuration
It is not necessary to configure ST inputs/outputs in the PSSuniversal Configurator on the
PSS WIN-PRO system software, but ST modules can be selected and displayed.
The ST process image can be optimised by combining adjacent bits of the same type into
bytes.
Further information on configuration is available in the PSSuniversal Configurator's online
help.
4.3.1
Addresses in the process image
Each module occupies 8 consecutive bit addresses in the process image.
Configuration
SafetyBUS p
Standard bus system
FS-PII
ST-PII
ST-PIO
None
- - -
8 Bit
8 Bit
4.3.2
PSSu assignment in system environment B
Data access is via pre-defined I/O data types:
I/O data name
I/O data type
I/O data element
Meaning
I00 … I07
ST_I_DI
Data: BOOL
Input data I00 ... I07
O00 … O07
ST_O_DO
Data: BOOL
Output data O00 ... O07
