Table of contents 
 
SIMATIC IPC PX-39A 
Operating Instructions, 08/2022, A5E51699601-AA 
9 
C  Markings and symbols ....................................................................................................................... 118 
C.1  Overview ......................................................................................................................... 118 
C.2  Safety .............................................................................................................................. 118 
C.3  Operator controls............................................................................................................. 118 
C.4  Certificates, approvals and markings ................................................................................ 119 
C.5  Interfaces ........................................................................................................................ 120 
D  List of abbreviations .......................................................................................................................... 121 
D.1  Abbreviations .................................................................................................................. 121 
  Index .................................................................................................................................................. 123