WAGO-I/O-SYSTEM 750 Table of Contents 5
750-882 Media Redundancy ETHERNET Controller
Manual
1.5.0
7.3 Data Exchange ...................................................................................... 86
7.3.1 Memory Areas ................................................................................... 88
7.3.2 Addressing ........................................................................................ 91
7.3.2.1 Addressing of I/O Modules ........................................................... 92
7.3.2.2 IEC-61131-3 Address Areas ......................................................... 93
7.3.2.3 Absolute Addressing ..................................................................... 94
7.3.3 Data Exchange between MODBUS/TCP Master and I/O Modules ... 96
7.3.4 Data Exchange between EtherNet/IP Master and I/O Modules ........ 98
7.3.5 Data Exchange between PLC Function (CPU) and I/O Modules ...... 99
7.3.6 Data Exchange between Master and PLC Function (CPU) ............ 100
7.3.6.1 Example of MODBUS/TCP Master and PLC Function (CPU) .... 100
7.3.7 Application Example ........................................................................ 102
8 Commissioning ....................................................................................... 103
8.1 Connecting Client PC and Fieldbus Nodes .......................................... 104
8.2 Allocating the IP Address to the Fieldbus Node ................................... 104
8.2.1 Assigning IP Address via Address Selection Switch ....................... 105
8.2.2 Assigning IP Addresses via DHCP .................................................. 107
8.2.2.1 Enable DHCP ............................................................................. 107
8.2.2.2 Assigning the IP address permanently by option “use IP from
EEPROM“ ................................................................................... 108
8.2.3 Assigning IP Addresses via “WAGO Ethernet Settings“ ................. 110
8.2.4 Assigning the IP Address with a PLC program ............................... 111
8.2.5 Assigning the IP Address with a BootP Server ............................... 111
8.2.5.1 Note MAC IDs ............................................................................. 113
8.2.5.2 Determining IP addresses .......................................................... 114
8.2.5.3 Assigning the IP address ............................................................ 115
8.2.5.4 Assigning the IP address permanently by option “use IP from
EEPROM“ ................................................................................... 115
8.2.5.5 Reasons for Failed IP Address Assignment ............................... 117
8.3 Testing the Function of the Fieldbus Node .......................................... 118
8.4 Preparing the Flash File System .......................................................... 120
8.5 Synchronizing the Real-Time Clock ..................................................... 122
8.6 Restoring Factory Settings ................................................................... 125
9 Programming the PFC Using WAGO-I/O-PRO ..................................... 126
9.1 Configuring the Fieldbus Controller using the I/O Configurator ........... 129
9.1.1 Configuration using the “EA-config.xml” File ................................... 132
9.2 ETHERNET Libraries for WAGO-I/O-PRO .......................................... 134
9.3 Functional Restrictions and Limits ....................................................... 135
9.4 General Information about IEC Tasks .................................................. 137
9.4.1 IEC Task Sequence ........................................................................ 139
9.4.2 Overview of Most Important Task Priorities ..................................... 139
9.5 System Events ..................................................................................... 141
9.5.1 Enabling/Disabling System Events .................................................. 141
9.6 Transfer the IEC Program to the Fieldbus Controller ........................... 143
9.6.1 Transfer via Serial Service Port ....................................................... 145
9.6.2 Transfer via Fieldbus and ETHERNET ........................................... 148
10 Configuring via the Web-Based Management System (WBM) ........... 150
10.1 Information ........................................................................................... 152
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