Siemens SINAMICS G120XA - Page 7

6.2.2.3 Digital outputs ......................................................................................................................136
6.2.2.4 Analog inputs .......................................................................................................................139
6.2.2.5 Adjusting characteristics for analog input.............................................................................142
6.2.2.6 Setting the deadband ...........................................................................................................143
6.2.2.7 Analog outputs .....................................................................................................................145
6.2.2.8 Adjusting characteristics for analog output ..........................................................................148
6.2.3 Communication via Modbus RTU ........................................................................................149
6.2.3.1 Activating communication via fieldbus .................................................................................149
6.2.3.2 Setting the address ..............................................................................................................150
6.2.3.3 Parameters for setting communication via Modbus RTU.....................................................150
6.2.3.4 Modbus RTU telegram .........................................................................................................153
6.2.3.5 Baud rates and mapping tables ...........................................................................................154
6.2.3.6 Mapping tables - converter data...........................................................................................156
6.2.3.7 Acyclic communication via Modbus RTU .............................................................................159
6.2.3.8 Write and read access using function codes........................................................................160
6.2.3.9 Reading and writing parameters acyclically via FC 16.........................................................162
6.2.3.10 Communication procedure ...................................................................................................165
6.2.3.11 Application example .............................................................................................................166
6.2.4 Communication via USS ......................................................................................................167
6.2.4.1 Activating communication via fieldbus .................................................................................167
6.2.4.2 Setting the address ..............................................................................................................168
6.2.4.3 Telegram structure ...............................................................................................................168
6.2.4.4 Specify user data of telegram ..............................................................................................169
6.2.4.5 USS process data channel (PZD) ........................................................................................170
6.2.4.6 Telegram monitoring ............................................................................................................173
6.2.4.7 USS parameter channel.......................................................................................................174
6.2.5 Communication via BACnet MS/TP .....................................................................................180
6.2.5.1 BACnet properties................................................................................................................180
6.2.5.2 Activating communication via fieldbus .................................................................................181
6.2.5.3 Setting the address ..............................................................................................................182
6.2.5.4 Parameters for setting communication via BACnet..............................................................183
6.2.5.5 Supported services and objects ...........................................................................................185
6.2.5.6 Acyclic communication (general parameter access) via BACnet.........................................194
6.2.6 Changeover drive control .....................................................................................................196
6.2.7 Selecting physical units........................................................................................................197
6.2.7.1 Unit system ..........................................................................................................................197
6.2.7.2 Technological unit of the technology controller ....................................................................198
6.3 Pump control ........................................................................................................................200
6.3.1 Multi-pump control................................................................................................................200
6.3.1.1 Pump switch-in/switch-out....................................................................................................202
6.3.1.2 Stop mode............................................................................................................................207
6.3.1.3 Pump switchover..................................................................................................................210
6.3.1.4 Service mode .......................................................................................................................212
6.3.2 Pipe filling.............................................................................................................................215
6.3.3 Frost protection ....................................................................................................................218
6.3.4 Condensation protection ......................................................................................................219
6.3.5 Cavitation protection ............................................................................................................221
6.3.6 Deragging.............................................................................................................................222
6.4 Setpoints and setpoint processing .......................................................................................224
6.4.1 Setpoints ..............................................................................................................................224
6.4.1.1 Analog input as setpoint source ...........................................................................................225
Table of contents
SINAMICS G120XA converter
Operating Instructions, 03/2019, FW V1.0, A5E44751205B AB 5