Fieldbus Controller - WAGO 750 Series Manual

3 Fieldbus Controller

3.1 Fieldbus Controller 750-841
This chapter includes:
3.1.1
3.1.2
3.1.3
3.1.3.1
3.1.3.2
3.1.3.3
3.1.3.4
3.1.3.5
3.1.3.6
3.1.3.7
3.1.4
3.1.4.1
3.1.4.2
3.1.5
3.1.5.1
3.1.5.2
3.1.5.3
3.1.5.4
3.1.6
3.1.6.1
3.1.6.2
3.1.6.3
3.1.6.4
3.1.6.5
3.1.6.6
3.1.7
3.1.7.1
3.1.7.2
3.1.8
3.1.8.1
3.1.8.2
3.1.8.3
3.1.8.4
3.1.9
3.1.9.1
3.1.9.2
3.1.9.3
3.1.9.4
3.1.10 Fault behavior .................................................................................. 117
3.1.10.1
3.1.10.2
3.1.11 Technical Data ................................................................................. 118
WAGO-I/O-SYSTEM 750
ETHERNET TCP/IP
Description......................................................................................... 36
Compatibility ..................................................................................... 37
Hardware ........................................................................................... 38
View.............................................................................................. 38
Device Supply............................................................................... 39
Fieldbus Connection ..................................................................... 40
Display Elements .......................................................................... 40
Configuration and Programming Interface ................................... 41
Operating Mode Switch ................................................................ 42
Hardware Address (MAC-ID) ...................................................... 43
Operating System .............................................................................. 44
Start-up.......................................................................................... 44
PLC Cycle..................................................................................... 44
Process Image .................................................................................... 46
General Structure .......................................................................... 46
Example of a Process Input Image................................................ 48
Example of a Process Output Image ............................................. 49
Fieldbus specific Process Data Architecture for MODBUS/TCP 50
Data Exchange ................................................................................... 50
Memory Areas .............................................................................. 67
Addressing .................................................................................... 69
Data Exchange between MODBUS TCP Master and I/O Modules72
Data Exchange between Ethernet IP Master and I/O Modules .... 74
Data Exchange between PLC Functionality (CPU) and I/O
Modules......................................................................................... 75
Data Exchange between Master and PLC Functionality (CPU)... 76
Starting up an ETHERNET TCP/IP fieldbus node ........................... 81
Variation 1: Start up with the WAGO Ethernet Settings.............. 81
Variation 2:Starting up with the WAGO BootP Server................ 83
Programming the PFC with WAGO-I/O-PRO CAA......................... 90
WAGO-I/O-PRO CAA library elements for ETHERNET........... 94
Some Basic Facts about IEC Tasks .............................................. 95
IEC 61131-3-Program transfer ..................................................... 98
Information on the web-based management system................... 101
LED Display .................................................................................... 108
Fieldbus status............................................................................. 109
Node Status – Blink code from the 'I/O' LED ............................ 110
'USR'-LED ................................................................................. 116
Supply voltage status .................................................................. 116
Fieldbus failure ........................................................................... 117
Internal bus fault ......................................................................... 117
Fieldbus Controller
Fieldbus Controller 750-841
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