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WAGO
I/O Systems
750-342
WAGO 750-342 Manual
186 pages
Manual
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Modular I/O-System
ETHERNET TCP/IP
750-342
Manual
Technical description,
installation and
configuration
Version 2.1.1
2
Table of Contents
Default Chapter
3
Table of Contents
3
1 Important Notes
7
Legal Principles
7
Copyright
7
Personnel Qualification
7
Conforming Use of Series 750
8
Technical Condition of the Devices
8
Standards and Regulations for Operating the 750 Series
8
Symbols
9
Safety Information
10
Font Conventions
11
Number Notation
11
Scope
11
Important Comments for Starting up
11
Abbreviation
12
2 The WAGO-I/O-SYSTEM 750
13
System Description
13
Technical Data
14
Manufacturing Number
20
Component Update
21
Storage, Assembly and Transport
21
Mechanical Setup
22
Installation Position
22
Total Expansion
22
Assembly Onto Carrier Rail
23
Carrier Rail Properties
23
WAGO DIN Rail
24
Spacing
24
Plugging and Removal of the Components
25
Assembly Sequence
26
Internal Bus/Data Contacts
27
Power Contacts
28
Wire Connection
29
Power Supply
30
Isolation
30
System Supply
31
Connection
31
Alignment
32
Field Supply
34
Connection
34
Fusing
35
Supplementary Power Supply Regulations
38
Supply Example
39
Power Supply Unit
40
Grounding
41
Grounding the DIN Rail
41
Framework Assembly
41
Insulated Assembly
41
Grounding Function
42
Grounding Protection
43
Shielding (Screening)
44
General
44
Bus Conductors
44
Signal Conductors
44
WAGO Shield (Screen) Connecting System
45
Assembly Guidelines/Standards
45
3 Fieldbus Coupler
46
Fieldbus Coupler 750-342
46
Description
46
Hardware
47
View
47
Device Supply
48
Fieldbus Connection
48
Display Elements
49
Configuration Interface
49
Hardware Address (MAC-ID)
50
Operating System
50
Process Image
51
Example of a Process Input Image
52
Example of a Process Output Image
53
Process Data Architecture
54
Data Exchange
54
Memory Areas
55
Addressing
56
Addressing the I/O Modules
56
Starting up a Fieldbus Node
58
Note the MAC-ID and Establish the Fieldbus Node
58
Connecting PC and Fieldbus Node
58
Determining IP Addresses
59
Allocating the IP Address to the Fieldbus Node
59
Testing the Function of the Fieldbus Node
62
Reading out the Information as HTML
63
LED Display
64
Fieldbus Status
64
Node Status - Blink Code from the 'I/O' LED
65
Supply Voltage Status
72
Fault Behavior
72
Fieldbus Failure
72
Internal Bus Fault
72
Technical Data
73
4 Fieldbus Communication
75
Ethernet
75
General
75
Network Architecture - Principles and Regulations
76
Wago-I/O-System
76
Transmission Media
77
Network Topologies
79
Coupler Modules
82
Important Terms
83
Network Communication
85
Protocol Layer Model
85
Communication Protocols
87
Ethernet
88
Channel Access Method
88
IP-Protocol
89
Raw Ip
93
IP Multicast
93
TCP Protocol
93
Udp
94
Arp
94
Administration and Diagnosis Protocols
95
Bootp (Bootstrap Protocol)
95
HTTP (Hypertext Transfer Protocol)
96
DHCP (Dynamic Host Configuration Protocol)
97
DNS (Domain Name Systems)
98
SNTP-Client (Simple Network Time Protocol)
98
FTP-Server (File Transfer Protocol)
98
SMTP (Simple Mail Transfer Protocol)
100
Application Protocols
100
MODBUS Functions
101
General
101
Use of the MODBUS Functions
103
Description of the MODBUS Functions
104
Function Code FC1 (Read Coils)
105
Function Code FC2 (Read Input Discretes)
106
Function Code FC3 (Read Multiple Registers)
107
Function Code FC4 (Read Input Registers)
108
Function Code FC5 (Write Coil)
109
Function Code FC6 (Write Single Register)
110
Function Code FC7 (Read Exception Status)
111
Function Code FC11 (Get Comm Event Counter)
112
Function Code FC15 (Force Multiple Coils)
113
Function Code FC16 (Write Multiple Registers)
114
Function Code FC23 (Read/Write Multiple Registers)
114
MODBUS Register Mapping
116
Internal Variables
117
Description of the Internal Variables
119
Watchdog (Fieldbus Failure)
119
Watchdog Register
119
Diagnostic Functions
124
Configuration Functions
124
Firmware Information
126
Constant Registers
128
Wago-I/O-System
129
5 O Modules
130
Overview
130
Digital Input Modules
130
Digital Output Modules
132
Analog Intput Modules
133
Analog Output Modules
134
Special Modules
135
System Modules
136
Process Data Architecture for MODBUS/TCP
137
Digital Input Modules
137
Digital Output Modules
139
Analog Input Modules
143
Analog Output Modules
144
Specialty Modules
145
System Modules
157
6 Application Examples
158
Test of MODBUS Protocol and Fieldbus Nodes
158
Visualization and Control Using SCADA Software
158
7 Use in Hazardous Environments
161
Foreword
161
Protective Measures
161
Classification Meeting CENELEC and IEC
161
Divisions
161
Explosion Protection Group
162
Unit Categories
163
Temperature Classes
163
Types of Ignition Protection
164
Classifications Meeting the NEC 500
165
Divisions
165
Explosion Protection Groups
165
Temperature Classes
166
Identification
167
For Europe
167
For America
168
Installation Regulations
169
8 Glossary
171
9 Literature List
183
10 Index
184
Wago-I/O-System
185
Other manuals for WAGO 750-342
User's Installation And Configuration
334 pages
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WAGO 750-342 Specifications
General
Product Type
Digital Input Module
Input Voltage
24 V DC
Width
12 mm
Fieldbus
PROFIBUS DP
Number of I/O modules
1
Height
100 mm
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