VSC-Vendor Specific Classes........................................................................................................................ 4-19

4.5.1

Class Instance der VSCs ..................................................................................................................................................................... 4-19

4.5.2

Gateway Class (VSC 100, 64h) ......................................................................................................................................................... 4-20

4.5.3

Process Data Class (VSC102, 66h) .................................................................................................................................................. 4-23

4.5.4

Miscellaneous Parameters Class (VSC 126, 7Eh)....................................................................................................................... 4-25

Applikationsbeispiel: BL20-E-GW-EN mit EtherNet/IP™ (Allen Bradley)

5.1

Allgemeine Hinweise.......................................................................................................................................5-2

5.1.1

Verwendete Hard-/Software ..............................................................................................................................................................5-2

5.2

Netzwerkkonfiguration ..................................................................................................................................5-3

5.2.1

Konfiguration des Netzwerkes in „RS Logix 5000" .....................................................................................................................5-3

5.2.2

Download der I/O-Konfiguration .....................................................................................................................................................5-7

5.3

I/O-Daten-Mapping .........................................................................................................................................5-9

5.4

Prozessdatenzugriff ..................................................................................................................................... 5-11

5.4.1

Setzen von Ausgängen ..................................................................................................................................................................... 5-11

5.4.2

Beispiel-Programm ............................................................................................................................................................................. 5-12

Implementierung von Modbus TCP

6.1

Allgemeine Modbus-Beschreibung ...............................................................................................................6-2

6.1.1

Protokoll-Beschreibung .......................................................................................................................................................................6-3

6.1.2

Datenmodell ............................................................................................................................................................................................6-4

6.2

Implementierte Modbus-Funktionen ............................................................................................................6-6

6.3

Modbus Register..............................................................................................................................................6-7

6.3.1

Aufbau der gepackten Ein-/ Ausgangs-Prozessdaten ........................................................................................................... 6-12

6.3.2

Register 0x100C: Gateway-Status.................................................................................................................................................. 6-16

6.3.3

Register 0x1130h: Modbus-Connection-Mode ........................................................................................................................ 6-17

6.3.4

Register 0x1131: Modbus-Connection-Timeout...................................................................................................................... 6-17

6.3.5

Register 0x113C und 0x113D: Restore Modbus-Verbindungs-Parameter ..................................................................... 6-17

6.3.6

Register 0x113E und 0x113F: Save Modbus-Verbindungs-Parameter ............................................................................ 6-18

6.3.7

Register 0x1140: Disable Protocol................................................................................................................................................. 6-18

6.3.8

Register 0x1141: Active Protocol ................................................................................................................................................... 6-18

6.3.9

Register 0x2000 bis 0x207F: Das Service-Objekt ..................................................................................................................... 6-19

6.4

Bit-Bereiche: Mapping der Input-Discrete- und Coil-Bereiche ................................................................. 6-22

6.5

Verhalten der Ausgänge im Fehlerfall (Watchdog) ................................................................................... 6-23

Anwendungsbeispiel: BL20-E-GW-EN mit Modbus TCP (CoDeSys Win V3)

7.1

Verwendete Hard-/Software...........................................................................................................................7-2

7.1.1

Hardware ...................................................................................................................................................................................................7-2

7.1.2

Software.....................................................................................................................................................................................................7-2

7.2

Netzwerkkonfiguration ..................................................................................................................................7-3

7.3

Programmierung mit CoDeSys.......................................................................................................................7-4

7.3.1

Vordefinierte Feature Sets ..................................................................................................................................................................7-4

7.3.2

Erstellen eines neuen Projektes ........................................................................................................................................................7-5

7.3.3

Definieren der Kommunikationseinstellungen...........................................................................................................................7-7

7.3.4

Hinzufügen des Ethernet-Adapters ................................................................................................................................................7-9

D301172 0713 - BL20-Ethernet Multiprotokoll-Gateway

iii

Inhaltsverzeichnis