WAGO 750-346, Руководство пользователя

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iv • Table of Contents
WAGO-I/O-SYSTEM 750
DeviceNet
2.8.2 Grounding Function........................................................................... 37
2.8.3 Grounding Protection......................................................................... 38
2.9 Shielding (Screening) ............................................................................. 39
2.9.1 General............................................................................................... 39
2.9.2 Bus
Conductors.................................................................................. 39
2.9.3 Signal Conductors.............................................................................. 39
2.9.4 WAGO Shield (Screen) Connecting System..................................... 40
2.10 Assembly Guidelines / Standards........................................................... 40
3 Fieldbus Coupler ....................................................................................... 42
3.1 Fieldbus Coupler 750-346 ...................................................................... 42
3.1.1 Description......................................................................................... 43
3.1.2 Hardware............................................................................................ 44
3.1.2.1 View .............................................................................................. 44
3.1.2.2 Device
Supply ............................................................................... 45
3.1.2.3 Fieldbus Connection ..................................................................... 45
3.1.2.4 Display Elements .......................................................................... 46
3.1.2.5 Configuration Interface ................................................................. 47
3.1.2.6 Hardware Address (MAC ID)....................................................... 47
3.1.2.7 Setting the Baud Rate.................................................................... 48
3.1.3 Operating System............................................................................... 48
3.1.4 Process Image .................................................................................... 49
3.1.5 Data Exchange ................................................................................... 50
3.1.5.1 Communication Interfaces ............................................................ 51
3.1.5.2 Memory Areas .............................................................................. 51
3.1.5.3 Addressing .................................................................................... 52
3.1.6 Configuration
Software ..................................................................... 54
3.1.7 Starting up DeviceNet Fieldbus Nodes.............................................. 54
3.1.7.1 Connecting the PC and Fieldbus Node ......................................... 54
3.1.7.2 Setting the MAC ID and Baud Rate ............................................. 54
3.1.7.3 Configuration with Static Assembly ............................................. 55
3.1.8 LED Display ...................................................................................... 59
3.1.8.1 Node status – Blink code from the 'I/O' LED ............................... 60
3.1.9 Technical Data ................................................................................... 67
4 DeviceNet ................................................................................................... 68
4.1 Description ............................................................................................. 68
4.2 Network
Architecture ............................................................................. 69
4.2.1 Transmission Media........................................................................... 69
4.2.1.1 Type of Cable................................................................................ 69
4.2.1.2 Cable Types .................................................................................. 69
4.2.1.3 Maximum Bus Length .................................................................. 70
4.2.2 Cabling............................................................................................... 70
4.2.3 Network
Topology............................................................................. 72
4.2.4 Network Grounding ........................................................................... 73
4.2.5 Interface Modules .............................................................................. 73
4.3 Network Communication ....................................................................... 74
4.3.1 Objects, Classes, Instances and Attributes ........................................ 74
4.4 Module Characteristics........................................................................... 75
4.4.1 Communication Model ...................................................................... 75