Phoenix Contact RAD IFS Series - Page 4

RAD-...-IFS
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PHOENIX CONTACT 105542_en_05
5.2 Setting telegram pauses based on the example of Modbus/RTU........................58
6 PLC / Modbus/RTU ..................................................................................................................59
6.1 PLC / Modbus/RTU mode ...................................................................................59
6.2 PLC / Modbus/RTU dual mode............................................................................ 62
6.3 Watchdog............................................................................................................ 65
6.4 Modbus function codes ....................................................................................... 66
6.5 Module type and error code registers for I/O extension modules......................... 67
6.6 Modbus memory map..........................................................................................68
6.7 Error codes and formats for analog input and output values................................83
6.8 Radioline function blocks..................................................................................... 84
7 Description of I/O extension modules ......................................................................................87
7.1 RAD-AI4-IFS - analog extension module with four inputs .................................... 87
7.2 RAD-PT100-4-IFS - extension module with four temperature inputs ...................91
7.3 RAD-AO4-IFS - analog extension module with four outputs ................................ 98
7.4 RAD-DI4-IFS - digital extension module with four inputs ................................... 102
7.5 RAD-DI8-IFS - digital extension module with eight inputs..................................106
7.6 RAD-DOR4-IFS - digital extension module with four outputs............................. 111
7.7 RAD-DO8-IFS - digital extension module with eight outputs.............................. 115
7.8 RAD-DAIO6-IFS - analog/digital extension module with six channels ............... 120
8 Planning wireless systems .....................................................................................................125
8.1 Delay time ......................................................................................................... 125
8.2 Pulse transmission ............................................................................................ 127
8.3 Trusted Wireless 2.0.......................................................................................... 127
8.4 RF bands........................................................................................................... 131
8.5 Planning wireless paths..................................................................................... 132
8.6 Practical test...................................................................................................... 132
8.7 Selecting antenna cables and antennas............................................................133
8.8 Installing antennas.............................................................................................134
8.9 Level and attenuation of wireless modules and accessories ............................. 137
8.10 Free space attenuation...................................................................................... 139
8.11 Propagation of radio waves ...............................................................................141
8.12 Fresnel zone...................................................................................................... 144
8.13 Range................................................................................................................146
8.14 Equivalent isotropically radiated power (EIRP)..................................................147
8.15 System calculation in free space ....................................................................... 148