Pilz PSSu H PLC1 FS DP SN SD - Manual (Page 13)

Function description
Operating Manual PSSu H PLC1 FS DP SN SD
1001776­EN­04 13
} The SD card is part of the safety concept on PSS 4000. If the SD card is missing or has
been swapped, the next time the PSSu system is booted it will be unable to achieve the
operating status "PSSu System in RUN condition without error". The SD card has a
locking mechanism, which protects it from being removed from the card holder uninten­
tionally. The SD card can also be sealed to protect it from manipulation, whether acci­
dental or intentional.
Sealing the SD card for additional protection:
4.1.5 Reset button
The "Reset" button on the head module has various functions:
} Perform a warm reset for the PSSu system
The reset button can be used to perform a warm reset for the PSSu system.
} Transfer the naming data and/or device project from the SD card (deliberate operator
action to transfer the naming data and/or device project from the SD card to the device
memory).
INFORMATION
The warm reset and the transfer of the naming data and/or device project
are described in the "PSS 4000 System Description". This is also where the
general effects on the PSSu system are described in detail.
4.2 SafetyNET p
4.2.1 Connection to SafetyNET p
Functions
} The SafetyNET p interface enables safety­related and non­safety­related data transfer
between the PSSu system and other network subscribers.
} The head module receives signals from other network subscribers; it processes these
signals in the user program and passes them on to the connected input/output mod­
ules.
} The head module receives signals from the connected input/output modules; it pro­
cesses these signals in the user program and passes them on to the other network sub­
scribers.
} If a fault occurs, the module switches the connected failsafe outputs to a safe condition.