Contents6 PAC8000* IO PROFINET Scanner User’s Manual–September 2017 GFK-2839B3.4 Clearing the IO-Controller Configuration ................................................................. 373.5 Replacing PAC8000 PROFINET Scanner Hardware.............................................. 37Chapter 4. Diagnostics .................................................................................... 384.1 PNS Status and Control Data .................................................................................. 384.1.1 Output Control Register ................................................................................. 384.1.2 Input Status Registers .................................................................................... 394.2 Error Handling ......................................................................................................... 414.2.1 Fatal Error Handling ....................................................................................... 414.2.2 PROFINET Diagnostics ................................................................................. 424.2.3 Clearing Faults on PAC8000 Modules ........................................................... 454.2.4 PROFINET Module Loss, Add and Mismatch Faults .................................... 46Chapter 5. PROFINET Specifications.............................................................. 475.1 PROFINET Protocol Support .................................................................................. 475.2 Technical Data......................................................................................................... 475.3 Limitations ............................................................................................................... 48