Function description
Operating Manual PSS u2 ES 4DO SR 0.5A
1004553-EN-01
10
4
Function description
4.1
Block diagram
O0.14
K0
O0.11
O0.11
Module
Supply
Data
(FS)
Periphery
Supply
+24 V DC
Mo
d
u
le
B
u
s
3
O0.12
. .
.
1
2
4
. . .
Fig.: Block diagram PSS u2 ES 4DO SR 0.5A
4.2
Supply
}
The module supply provides the module with voltage.
4.3
Integrated protection mechanisms
}
The module has temperature monitoring.
The module provides the following diagnostic data:
}
Start-up error
}
Configuration error
}
ST communication error
}
Temperature error: too warm
}
Temperature error: too hot
4.4
Outputs
The module has 4 relay outputs with a changeover contact.
Outputs
}
The head module sets the output status via the module bus.
If the module does not receive a process image of outputs from the head module, then sub-
stitute values are used for the process data. The value that is to be used as the substitute
value can be configured.
Substitute values may be:
}
Output switched off (default value)
}
Output switched on
