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Function description
–
}
Shorts between inputs of the same module with the same test pulses will not be detec-
ted.
4.3
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.
}
Test pulse signals are always buffered for 20 ms.
The module provides the following diagnostic data:
}
Start-up error
}
Configuration error
}
FS communication error
}
Bus termination error
}
Temperature error: Too warm
}
Test pulse error
}
Input error
4.4
Reaction times
Information on the reaction times of the inputs can be found in the "PSSuniversal" System
Description and the System Description "Automation system PSS 4000".
4.5
Configuration
4.5.1
PSSu assignment in system environment A
Functions for the FS inputs of a PSSu are defined in the PSSuniversal Configurator on the
PSS WIN-PRO system software:
}
Read access through the standard bus system
(configured per module):
"R" configuration
}
Allocation of a test pulse output to an input
(configured per input)
}
Optimisation of ST process image by combining adjacent bits of the same type.
"*" configuration
Operating Manual PSSu E F 4DI(-T)(-R),
21310-EN-08
the test pulses originate from other modules on a PSSu system.
INFORMATION
The PSSuniversal Configurator on the PSS WIN-PRO system software
must be used to define the I/O-Groups 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 inputs on a PSSu always belong to section B.
Section A and section B on a PSSu may belong to different I/O-Groups.
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