Table of contents
PN/PN coupler
Hardware Installation and Operating Manual, 10/2018, A5E00717043-AG 7
5.8 Identification data .................................................................................................................... 49
6 Functions .............................................................................................................................................. 51
6.1 Data record transfer from one IO controller to another IO controller ...................................... 51
6.1.1 How cross-network data record transfer works ...................................................................... 51
6.1.2 How local data record transfer works ..................................................................................... 55
6.1.3 Structure and meaning of status information for the data record transfer .............................. 58
6.1.4 Local data record transfer as an example .............................................................................. 61
6.2 PROFINET IO functions.......................................................................................................... 63
6.2.1 Device replacement ................................................................................................................ 63
6.2.2 Isochronous real-time communication .................................................................................... 64
6.2.3 Prioritized startup .................................................................................................................... 65
6.2.4 Media redundancy (MRP) ....................................................................................................... 66
6.2.5 Shared Device ........................................................................................................................ 66
6.2.6 Media Redundancy with Planned Duplication (MRPD) .......................................................... 68
6.2.7 Docking station ....................................................................................................................... 69
6.3 Shared Input/Shared Output as communication functions ..................................................... 71
6.3.1 Interface local distribution of IO data ...................................................................................... 71
6.3.2 Coupling across the network and interface local distribution of IO data ................................. 73
6.3.3 Coupling across the network and distribution and interface local distribution of IO data ....... 75
6.4 System redundancy S2 ........................................................................................................... 77
6.4.1 Field of application .................................................................................................................. 77
6.4.2 Media and system redundancy S2 ......................................................................................... 81
6.4.3 System redundancy S2 on one and both sides ...................................................................... 83
6.4.4 Configuration ........................................................................................................................... 85
7 Interrupts, error messages and diagnostics and system alarms ............................................................. 86
7.1 Diagnostics via LED displays .................................................................................................. 86
7.2 Diagnostics by user program .................................................................................................. 90
7.2.1 Extended channel diagnostics ................................................................................................ 90
7.2.2 Interrupts ................................................................................................................................. 91
7.2.3 Diagnostics readout ................................................................................................................ 92
7.2.4 Data validity display ................................................................................................................ 93
7.2.5 Diagnosis in Shared Device .................................................................................................... 94
7.2.6 STOP of the IO controller and recovery of the IO device ....................................................... 94
7.3 Reading service data .............................................................................................................. 95
8 Operation and maintenance .................................................................................................................. 96
8.1 Updating firmware via PROFINET IO ..................................................................................... 96
8.2 Replacing defective PN/PN coupler ........................................................................................ 97
8.3 Reset to factory settings ......................................................................................................... 98