6 Inhaltsverzeichnis WAGO I/O System 750 XTR
750-362/0040-0000 FC Modbus TCP; G4; XTR
Handbuch
Version 1.0.1
10.2.1 Feldbusausfall ................................................................................. 149
10.2.2 Lokalbusfehler ................................................................................. 149
11 Feldbuskommunikation ......................................................................... 151
11.1 Implementierte Protokolle .................................................................... 151
11.1.1 Kommunikationsprotokolle .............................................................. 151
11.1.1.1 IP (Internet Protocol) .................................................................. 151
11.1.1.2 TCP (Transmission Control Protocol) ......................................... 156
11.1.1.3 UDP (User Datagram Protocol) .................................................. 157
11.1.2 Konfigurations- und Diagnoseprotokolle ......................................... 158
11.1.2.1 BootP (Bootstrap Protocol) ......................................................... 158
11.1.2.2 DHCP (Dynamic Host Configuration Protocol) ........................... 159
11.1.2.3 HTTP (Hypertext Transfer Protocol) ........................................... 161
11.1.2.4 DNS (Domain Name Systems) ................................................... 162
11.1.2.5 SNTP-Client (Simple Network Time Protocol) ............................ 162
11.1.2.6 FTP-Server (File Transfer Protocol) ........................................... 162
11.1.2.7 SNMP (Simple Network Management Protokoll) ........................ 163
11.1.2.7.1 Beschreibung der MIB II ........................................................ 164
11.1.2.7.2 Traps ...................................................................................... 165
11.1.3 Anwendungsprotokolle .................................................................... 166
11.2 Modbus-Funktionen ............................................................................. 167
11.2.1 Allgemeines ..................................................................................... 167
11.2.2 Anwendung der MODBUS-Funktionen ........................................... 170
11.2.3 Beschreibung der MODBUS-Funktionen ........................................ 171
11.2.3.1 Funktionscode FC1 (Read Coils) ............................................... 172
11.2.3.2 Funktionscode FC2 (Read Discrete Inputs)................................ 174
11.2.3.3 Funktionscode FC3 (Read Holding Registers) ........................... 176
11.2.3.4 Funktionscode FC4 (Read Input Registers) ............................... 177
11.2.3.5 Funktionscode FC5 (Write Single Coil) ...................................... 178
11.2.3.6 Funktionscode FC6 (Write Single Register) ............................... 179
11.2.3.7 Funktionscode FC11 (Get Comm Event Counter) ...................... 180
11.2.3.8 Funktionscode FC15 (Write Multiple Coils) ................................ 181
11.2.3.9 Funktionscode FC16 (Write Multiple Registers) ......................... 183
11.2.3.10 Funktionscode FC22 (Mask Write Register) .............................. 184
11.2.3.11 Funktionscode FC23 (Read/Write Multiple Registers)................ 185
11.2.4 MODBUS-Register-Mapping ........................................................... 187
11.2.5 Modbus-Register ............................................................................. 190
11.2.5.1 Zugriff auf Registerwerte ............................................................ 191
11.2.5.2 Modbus-Watchdog ..................................................................... 191
11.2.5.3 Modbus-Watchdog-Register ....................................................... 193
11.2.5.4 Diagnoseregister ........................................................................ 198
11.2.5.5 Konfigurationsregister ................................................................. 199
11.2.5.6 Konstantenregister ................................
..................................... 201
11.2.5.7 Firmware-Informationsregister .................................................... 203
12 I/O-Module ............................................................................................... 208
12.1 Übersicht .............................................................................................. 208
12.2 Aufbau der Prozessdaten für Modbus TCP ......................................... 209
12.2.1 Digitaleingangsmodule .................................................................... 210
12.2.1.1 2-Kanal-Digitaleingangsmodule .................................................. 210
12.2.1.2 8-Kanal-Digitaleingangsmodule .................................................. 210