WAGO WAGO-I/O-SYSTEM 750 XTR Series, Manual

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6 Table of Contents WAGO-I/O-SYSTEM 750 XTR
750-352/040-000 FC ETHERNET G3 XTR
Manual
Version 1.3.0
11 Fieldbus Communication ..................................................................... 138
11.1 Implemented Protocols ....................................................................... 138
11.1.1 Communication Protocols .............................................................. 138
11.1.1.1 IP (Internet Protocol) ................................................................. 138
11.1.1.2 TCP (Transmission Control Protocol) ........................................ 143
11.1.1.3 UDP (User Datagram Protocol) ................................................. 143
11.1.2 Configuration and Diagnostics Protocols ........................................ 144
11.1.2.1 BootP (Bootstrap Protocol) ........................................................ 144
11.1.2.2 DHCP (Dynamic Host Configuration Protocol) ........................... 145
11.1.2.3 HTTP (Hypertext Transfer Protocol) .......................................... 148
11.1.2.4 DNS (Domain Name Systems) .................................................. 148
11.1.2.5 FTP-Server (File Transfer Protocol) ........................................... 148
11.1.2.6 SNMP (Simple Network Management Protocol) ........................ 149
11.1.2.6.1 MIB II Description .................................................................. 150
11.1.2.6.2 Traps .................................................................................... 150
11.1.3 Application Protocols...................................................................... 151
11.2 Modbus Functions .............................................................................. 152
11.2.1 General .......................................................................................... 152
11.2.2 Use of the MODBUS Functions ...................................................... 154
11.2.3 Description of the MODBUS Functions .......................................... 155
11.2.3.1 Function Code FC1 (Read Coils) ............................................... 156
11.2.3.2 Function Code FC2 (Read Discrete Inputs) ............................... 157
11.2.3.3 Function Code FC3 (Read Multiple Registers) ........................... 159
11.2.3.4 Function Code FC4 (Read Input Registers) ............................... 160
11.2.3.5 Function Code FC5 (Write Coil) ................................................. 161
11.2.3.6 Function Code FC6 (Write Single Register) ............................... 162
11.2.3.7 Function Code FC11 (Get Comm Event Counter) ..................... 163
11.2.3.8 Function Code FC15 (Write Multiple Coils) ................................ 164
11.2.3.9 Function Code FC16 (Write Multiple Registers) ......................... 165
11.2.3.10 Function Code FC22 (Mask Write Register) .............................. 166
11.2.3.11 Function Code FC23 (Read/Write Multiple Registers) ............... 167
11.2.4 MODBUS Register Mapping .......................................................... 168
11.2.5 MODBUS Registers ....................................................................... 171
11.2.5.1 Accessing Register Values ........................................................ 172
11.2.5.2 Watchdog Registers .................................................................. 172
11.2.5.3 Modbus Watchdog Register ....................................................... 173
11.2.5.4 Diagnostic Registers .................................................................. 177
11.2.5.5 Configuration Registers ............................................................. 178
11.2.5.6 Firmware Information Registers ................................................. 183
11.2.5.7 Constant Registers .................................................................... 185
11.3 EtherNet/IP (Ethernet/Industrial Protocol) ........................................... 187
11.3.1 General .......................................................................................... 187
11.3.2 Protocol overview in the OSI model ............................................... 188
11.3.3 Characteristics of the EtherNet/IP Protocol Software ..................... 189
11.3.4 EDS File......................................................................................... 189
11.3.5 Object Model .................................................................................. 190
11.3.5.1 General ..................................................................................... 190
11.3.5.2 Class Overview ......................................................................... 191
11.3.5.3 Explanation of the Table Headings in the Object Descriptions ... 192
11.3.5.4 Identity (01
hex
) ........................................................................... 192