WAGO I/O-SYSTEM 750, Technical Description, Installation And Configuration

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Table of Contents • v
WAGO-I/O-SYSTEM 750
PROFINET IO
3.1.7 Diagnostics ........................................................................................ 78
3.1.7.1
Diagnostics Data Sets ................................................................... 78
3.1.7.2 Structure of the Standardized Diagnosis Data Sets ...................... 78
3.1.7.2.1 Channel Specific Diagnostics .................................................. 79
3.1.7.2.1.1 Channel Diagnostics............................................................ 80
3.1.7.2.1.2 Fault Types of I/O Modules with Diagnostics Capability... 82
3.1.7.2.2 Fault Cases of I/O Modules with Diagnostics Capability........ 84
3.1.7.2.2.1 Extended Channel Diagnostics............................................ 86
3.1.7.2.3 Difference between Target and Actual Configuration ............. 92
3.1.7.2.4 Data Set for Identification and Servicing Purposes (I&M 0)... 93
3.1.8 Acyclic Communication using Record Data Sets.............................. 94
3.1.8.1 Data Set Detail diagnostics for PROFIsafe I/O Modules ............. 94
3.1.9 LED Indication .................................................................................. 96
3.1.9.1 Blink Code .................................................................................... 96
3.1.9.2 Fieldbus Status .............................................................................. 96
3.1.9.3 Node Status - 'I/O' LED Blinking Code........................................ 98
3.1.9.4 'I/O' LED Error Messages ........................................................... 100
3.1.9.5 Status Supply voltage.................................................................. 105
3.1.10 Error Response ................................................................................ 106
3.1.10.1 Fieldbus Failure .......................................................................... 106
3.1.10.2 Internal Bus Failure .................................................................... 106
3.1.11 Technical Data................................................................................. 107
4 Fieldbus Communication ....................................................................... 108
4.1 ETHERNET ......................................................................................... 108
4.1.1 General............................................................................................. 108
4.1.2
Network Architecture – Principles and Regulations ....................... 109
4.1.2.1 Transmission Media.................................................................... 110
4.1.2.2 Network Topologies.................................................................... 112
4.1.2.3 Coupler Modules......................................................................... 115
4.1.2.4 Important Terms.......................................................................... 116
4.1.3 Network Communication................................................................. 118
4.1.3.1 Protocol layer model ................................................................... 118
4.1.3.2 Communication Protocols........................................................... 120
4.1.3.2.1 ETHERNET ........................................................................... 121
4.1.3.3
Channel access method ............................................................... 121
4.1.3.3.1 IP-Protocol ............................................................................. 122
4.1.3.3.1.1 RAW
IP ............................................................................. 126
4.1.3.3.1.2 IP Multicast ....................................................................... 126
4.1.3.3.2 TCP Protocol.......................................................................... 126
4.1.3.3.3 UDP........................................................................................ 127
4.1.3.3.4 ARP ........................................................................................ 127
4.1.3.4
Administration and Diagnosis Protocols .................................... 128
4.1.3.4.1 BootP (Bootstrap Protocol) .................................................... 128
4.1.3.4.2 HTTP (HyperText Transfer Protocol).................................... 129
4.1.3.4.3 DHCP (Dynamic Host Configuration Protocol) .................... 130
4.1.3.4.4 DNS (Domain Name Systems) .............................................. 131
4.1.3.4.5 SNTP-Client (Simple Network Time Protocol)..................... 131
4.1.3.4.6 FTP-Server (File Transfer Protocol) ...................................... 131
4.1.3.4.7 SMTP (Simple Mail Transfer Protocol)................................. 133