Function description
Operating Manual PSSu E S 4DO 0.5-(T)D
21951-EN-07
14
4.3
Configuration
4.3.1
PSSu assignment in system environment A
It is not necessary to configure ST outputs in the PSSuniversal Configurator on the
PSS WIN-PRO system software. Overload detection and temperature monitoring can be
configured: The entries in the status byte can be deactivated.
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.
4.3.1.1
Addresses in the process image
The module occupies 4 consecutive bit addresses for the outputs in the process image of
outputs. If the status byte is activated, it occupies an additional 8 consecutive bit addresses
in the process image of inputs.
Configuration
SafetyBUS p
Standard bus system
FS-PIO
ST-PII
ST-PIO
Without status byte
- - -
- - -
4 Bit
With status byte ("S")
- - -
8 Bit
4 Bit
4.3.1.2
Status byte
The status byte contains the information on overload and overtemperature.
Structure and contents of the status byte:
Bit num-
ber
Signal
Meaning
0
0
No overload on output 0
1
Overload on output 0
1
0
No overload on output 1
1
Overload on output 1
2
(1)
0
No overload on output 2
1
Overload on output 2
3
(1)
0
No overload on output 3
1
Overload on output 3
4
0
No temperature error
1
Temperature error: too warm
5
0
Switch-off temperature not reached
1
Temperature error: too hot, outputs switch off
6
0
Reserved
1
Reserved
