Pilz PSS u2 P0 F/S EIP, Operating Manual

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Function description
Operating Manual PSS u2 P0 F/S EIP
1004528-EN-03
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4.7.2 FS process image of outputs
Maximum length of the process image of outputs: 8 bytes
Process image of FS outputs (for digital FS modules with up to 8 outputs):
Byte Bits Meaning
0 0…7 FS-PIO of the first FS output module (data only).
.
.
.
7
0…7 FS-PIO of the eighth FS output module (data only).
Example:
Byte Bit
7
Bit
6
Bit
5
Bit
4
Bit
3
Bit
2
Bit
1
Bit
0
Slot Module
0 O7 O6 O5 O4 O3 O2 O1 O0 5 PSS u2 EF 8DO
1 O7 O6 O5 O4 O3 O2 O1 O0 6 PSS u2 EF 8DO
2 O7 O6 O5 O4 O3 O2 O1 O0 7 PSS u2 EF 8DO
3 O7 O6 O5 O4 O3 O2 O1 O0 8 PSS u2 EF 8DO
4 O7 O6 O5 O4 O3 O2 O1 O0 9 PSS u2 EF 8DO
5 O7 O6 O5 O4 O3 O2 O1 O0 10 PSS u2 EF 8DO
6 n.u. n.u. n.u. n.u. O3 O2 O1 O0 11 PSS u2 EF 4DO
7 n.u. n.u. n.u. n.u. O3 O2 O1 O0 12 PSS u2 EF 4DO
Legend:
}
n.u.: not used
}
O: Output
4.7.3 Restart interlock
The grouping of the FS inputs/FS outputs is determined by the user program in the control
system.
The Combined Input Status (CIS) and Combined Output Status (COS) bits (see
FS process
image of inputs [ 18] ) have the value “0” if one of the FS inputs or one of the FS outputs
is faulty. Once an error at the FS inputs or FS outputs has been rectified, the modules are
operational again immediately and the value of the status bits automatically changes to “1”.
The CIP Safety Protocol does not contain any restart interlock. The restart interlock must
be configured in the user program.
FS inputs
Example of the configuration of a restart interlock:
}
In the user program of the programmable safety system, the value for CIS=0 must be
saved in a control variable.
}
The user program must link this control variable logically to every safe input with AND.