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APPLIC ATION DESCRIPTIONS AND ADDITIONAL INFORMATION                              253






















          —
          PROFINET/PROFIsafe communication between
          multiple AC500 PLC controllers


          IO-Controller 1           IO-Controller 2           IO-Controller 3            IO-Controller 4

















                                                               PROFINET RT / PROFIsafe
                                            Switch

            IO-Controller 1
                   IO-Controller 2                             IO-Device / IO-Controller
                          IO-Controller 3
                                 IO-Controller  4
            IO-Device
                   IO-Device
                          IO-Device
                                 IO-Device

                                                IO-Controller

                                                                          IO-Device(s)
                                                                                                                      08
                                                IO-Device(s)







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