Application Note PSSu Key-in-Pocket Extended
1006505-EN-01
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1 Preface
This Application Note provides a basic description of the commissioning of the key-in-pocket system
from Pilz, using as an example a manufacturing cell with two access points and two blind spots.
With the help of the access permission system PITreader and a Pilz safety controller, the key-in-
pocket system from Pilz guarantees that a plant cannot (re-)start until the last person has left the
danger zone. A PSSu PLC from the automation system PSS 4000 is used as the safety controller.
The general procedure for a successful basic configuration is shown.
NOTICE
A detailed explanation of the safety functions employed in the failsafe application and
their evaluation in terms of functional safety are not part of this document.
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