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ETHERNET • 135
Network Communication
WAGO-I/O-SYSTEM 750
ETHERNET TCP/IP
5.3.4.9 SNMP V1 (Simple Network Management Protocol)
The Simple Network Management Protocol (SNMP) is responsible for the
transport of control data, which enables the exchange of management
information, status and statistical data between individual network components
and a management system. Version 1 of the protocol is supported.
SNMP represents a standard for the management of devices in a TCP/IP
network. An SNMP management workstation polls the SNMP agent in order
to obtain information on the corresponding devices. Components of a device,
which the SNMP agent can access or an SNMP agent can modify, are
described as SNMP objects. Collections of SNMP objects are contained in a
logical database, the Management Information Base (MIB), and the objects are
frequently referred to as MIB objects.
In the ETHERNET controller, SNMP embraces the common MIB as described
in RFC1213 (MIB II).
5.3.4.9.1 Configuration of SNMP
The SNMP is executed via Port 161. The port number for SNMP traps is 162.
This port number cannot be changed.
The configuration of SNMP is done via the web-based management system or
directly via SNMP. On the web page stored in the controller, the name of the
device (sysName), the description of the device (sysDescription), the location
(sysLocation) and the contact person (sysContact) can be freely set under the
“Snmp” link. In addition, up to 2 trap managers can be specified.
5.3.4.9.2 Description of MIB II
The MIB II conformance to RFC1213 is divided into the following groups:
• System Group
• Interface Group
• Address Translation Group
• IP Group
• IpRoute Table
• IpNetToMediaTable
• ICMP Group
• TCP Group
• UDP Group
• SNMP Group
• EGP Group
- Modular I/O-System 1
- ETHERNET TCP/IP 1
- TABLE OF CONTENTS 3
- 1 Important Comments 5
- 1.2 Symbols 6
- 1.3 Font Conventions 7
- 1.4 Number Notation 7
- 1.5 Safety Notes 8
- 1.6 Scope 9
- 1.8 Abbreviation 9
- 2 The WAGO-I/O-SYSTEM 750 10
- 2.2 Technical Data 11
- 2.3 Manufacturing Number 15
- 2.5 Mechanical Setup 16
- Mechanical Setup 17
- 2.5.4 Spacing 18
- 2.5.6 Assembly Sequence 20
- 2.5.8 Power Contacts 22
- 2.5.9 Wire connection 23
- 2.6 Power Supply 24
- 2.6.2 System Supply 25
- 2.6.3 Field Supply 28
- 2.6.5 Supply example 33
- 2.6.6 Power Supply Unit 34
- 2.7 Grounding 35
- 2.7.2 Grounding Function 36
- 2.7.3 Grounding Protection 37
- 2.8 Shielding (Screening) 38
- 3 Fieldbus Controller 40
- Fieldbus Controller • 37 41
- Fieldbus Controller 750-841 41
- 3.1.1 Description 42
- Hardware 43
- Configuration and 46
- Mode switch 47
- 3.1.3 Operating System 49
- 3.1.4 Process Image 51
- Process Image 52
- DI: Digital Input 53
- AI:Analog Input 53
- High Byte Low Byte 59
- Data Exchange 67
- I/O modules 68
- • Input words 73
- • Output words 73
- • Input bits 73
- • Output bits 73
- MODBUS master 74
- 3.1.5.6.2.1 Word Access 79
- 3.1.5.6.2.2 Bit Access 80
- 3.1.5.6.2.3 Example of Use: 81
- LED Display 100
- WAGO-I/O-SYSTEM 750 100
- 3.1.8.2 Fieldbus status 101
- 3.1.9 Fault behavior 104
- Fault behavior 105
- 3.1.10 Technical Data 106
- 4 I/O Modules 107
- 4.3 Digital Output Modules 108
- 4.4 Analog Intput Modules 109
- 4.5 Analog Output Modules 110
- 4.6 Counter Modules 111
- 4.7 Pulse Width Module 111
- 4.8 Serial Interfaces 111
- 4.10 System Modules 112
- 5 ETHERNET 113
- 110 • ETHERNET 114
- 5.2.1 Transmission Media 115
- 112 • ETHERNET 116
- 5.2.2 Network Topologies 117
- 114 • ETHERNET 118
- 5.2.3 Coupler Modules 119
- 5.2.4 Important Terms 120
- ETHERNET • 117 121
- 5.3 Network Communication 122
- ETHERNET/IP 123
- 5.3.2 Communication Protocols 124
- 5.3.3 Channel access method 125
- • Class A Subnet mask: 128
- • Class B Subnet mask: 128
- • Class C Subnet mask: 128
- 126 • ETHERNET 130
- Network Communication 130
- 5.3.4 Application Protocols 131
- ETHERNET • 129 133
- ETHERNET • 131 135
- 5.3.4.9.2.1 System Group 140
- 5.3.4.9.2.2 Interface Group 140
- 5.3.4.9.2.4 141
- 5.3.4.9.2.5 IP Group 142
- 5.3.4.9.2.6 IpRoute Table 143
- 5.3.4.9.2.7 IpNetToMediaTable 143
- 5.3.4.9.2.8 ICMP Group 144
- 5.3.4.9.2.9 TCP Group 145
- 5.3.4.9.2.10 UDP Group 145
- 5.3.4.9.2.11 SNMP Group 146
- 6 MODBUS Functions 148
- MODBUS Functions • 145 149
- Attention 150
- 6.4 MODBUS Register Mapping 163
- 6.5 Internal Variables 164
- (Funtion code-1) + 167
- (Funtion code-1 167
- 6.5.2 Diagnostic Functions 169
- 6.5.3 Configuration Functions 170
- 6.5.4 Firmware Information 173
- 6.5.5 Constant Registers 174
- 7.1 General 176
- 7.3 Object model 178
- 7.3.2 Classes 179
- 7.3.2.4 Identity (01 181
- Instance 1 181
- 7.3.2.7 Port Class (F4 186
- Common Services 186
- Object model 189
- 8 Application examples 199
- 196 • Application examples 200
- G012913e 201
- 9.1 Foreword 202
- 9.2 Protective measures 202
- 9.3.3 Unit categories 204
- 9.3.4 Temperature classes 205
- 9.4.1 Divisions 207
- 9.4.3 Temperature classes 208
- 9.5 Identification 209
- 9.5.2 For America 210
- 9.6 Installation regulations 211
- Installation regulations 212
- 10 Glossary 213
- 210 • Glossary 214
- Glossary • 211 215
- 212 • Glossary 216
- Glossary • 213 217
- 214 • Glossary 218
- Glossary • 215 219
- 216 • Glossary 220
- Glossary • 217 221
- 218 • Glossary 222
- Glossary • 219 223
- 220 • Glossary 224
- Glossary • 221 225
- 11 Literature list 226
- 12 Index 227
- 224 • Index 228
- Index • 225 229
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