- •TABLE OF CONTENTS
- •Important comments
- •Legal principles
- •Copyright
- •Personnel qualification
- •Intended use
- •Scope
- •Symbols
- •Font conventions
- •Number notation
- •Abbreviation
- •The WAGO-I/O-SYSTEM 750
- •System Description
- •General
- •Coupler/Controller (1)
- •I/O Modules (2)
- •End Module (3)
- •Installation
- •Safty notes
- •Mechanical Installation
- •Electrical Installation
- •Wire Connection
- •Change fuse
- •Power supply
- •System supply voltage
- •Supply Voltage Field Side
- •Manufacturing Number
- •Technical Data
- •Fieldbus coupler / controller
- •Fieldbus coupler 750-342
- •Description
- •Hardware
- •View
- •Device supply
- •Fieldbus connection
- •Display elements
- •Configuration interface
- •Operating system
- •Process image
- •Example of a process input image
- •Example of a process output image
- •Process data architecture for MODBUS/TCP
- •Data exchange
- •Memory areas
- •Addressing
- •Data exchange between MODBUS master and I/O modules
- •Starting up ETHERNET TCP/IP fieldbus nodes
- •Connecting PC and fieldbus node
- •Determining IP addresses
- •Allocating the IP address to the fieldbus node
- •Testing the function of the fieldbus node
- •Reading out the information as HTML pages
- •LED Display
- •Blink code
- •Fieldbus status
- •Node status
- •Fault behavior
- •Fieldbus failure
- •Internal bus fault
- •Technical Data
- •Fieldbus controller 750-842
- •Description
- •Hardware
- •View
- •Device supply
- •Fieldbus connection
- •Display elements
- •Configuration and programming interface
- •Operating mode switch
- •Operating system
- •Start-up
- •PLC cycle
- •Process image
- •Example of a process input image
- •Example of a process output image
- •Process data architecture for MODBUS/TCP
- •Data exchange
- •Memory areas
- •Addressing
- •Data exchange between master and I/O modules
- •Data exchange between PLC functionality (CPU) and I/O modules
- •Data exchange between master and PLC functionality (CPU)
- •Common access of MODBUS master and PLC functionality to outputs
- •Address review
- •Starting up ETHERNET TCP/IP fieldbus nodes
- •Connecting PC and fieldbus node
- •Determining IP addresses
- •Allocating the IP address to the fieldbus node
- •Testing the function of the fieldbus node
- •Viewing the HTML pages
- •Programming the PFC with WAGO-I/O-PRO 32
- •LED Display
- •Blink code
- •Fieldbus status
- •Node status
- •Supply voltage status
- •Fault behavior
- •Fieldbus failure
- •Internal bus fault
- •Technical Data
- •I/O modules
- •I/O modules-Review
- •Digital Inputs
- •Digital Outputs
- •Analog Inputs
- •Analog Outputs
- •Supply and End modules
- •Terminal blocks for encoder and resolvers
- •Special terminal blocks
- •ETHERNET
- •Network architecture – Principles and Regulations
- •Transmission media
- •Network topologies
- •Coupler modules
- •Important terms
- •Network communication
- •Channel access method
- •Communication protocols
- •ETHERNET
- •IP-Protocol
- •TCP protocol
- •ICMP
- •Application protocols
- •MODBUS/TCP
- •Bootstrap Protocol (BootP)
- •HyperText Transfer Protocol (HTTP)
- •Common MODBUS functions
- •Use of the MODBUS functions
- •Description of the MODBUS functions
- •Function code FC1 (Read Coils)
- •Function code FC2 (Read Discrete Inputs)
- •Function code FC3 (Read multiple registers)
- •Function code FC4 (Read input registers)
- •Function code FC5 (Write Coil)
- •Function code FC6 (Write single register)
- •Function code FC7 (Read Exception Status)
- •Function code FC16 (Write multiple registers)
- •Function code FC11 (Get comm event counter)
- •Function code FC23 (Read/Write multiple registers)
- •Watchdog (Fieldbus failure)
- •Diagnostic function
- •Configuration function
- •Firmware information
- •General Registers
- •Special PFC Register (only for controller 750-842)
- •Application examples
- •Test of MODBUS protocol and fieldbus nodes
- •Visualization and control using SCADA software
- •Application in Explosive Environments
- •Foreword
- •Protective measures
- •Classification meeting CENELEC and IEC
- •Divisions
- •Explosion protection group
- •Unit categories
- •Temperature classes
- •Types of ignition protection
- •Classifications meeting the NEC 500
- •Divisions
- •Explosion protection groups
- •Temperature classes
- •Identification
- •For Europe
- •For America
- •Installation regulations
- •Glossary
- •Literature list
- •Index
314 • Application in Explosive Environments
8.6 Installation regulations
In the Federal Republic of Germany, various national regulations for the installation in explosive areas must be taken into consideration. The basis being the ElexV complemented by the installation regulation DIN VDE 0165/2.91.
The following are excerpts from additional VDE regulations:
DIN VDE 0100
DIN VDE 0101
DIN VDE 0800
installation in power plants with rated voltages up to 1000 V
installation in power plants with rated voltages above 1 kV
installation and operation in tele-communication plants including information processing equipment
DIN VDE 0185 lightning protection systems
The USA and Canada have their own regulations. The following are excerpts from these regulations:
NFPA 70
ANSI/ISA-RP 12.6-1987
National Electrical Code Art. 500 Hazardous Locations
Recommended Practice
C22.1 |
Canadian Electrical Code |
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Modular I/O System
ETHERNET TCP/IP
Application in Explosive Environments • 315
Danger
For the use of WAGO-I/O SYSTEM 750 (electrical operating means) with Ex approval the observance of the following points is mandatory:
•The electrical operating means are exclusively suitable for applications in explosion endangered areas (Europe Group II, Zone 2 or America: Class I, Division 2, Group A, B, C, D) or in non explosion endangered areas!
•Ensure that only approved modules of the electrical operating means will be used. Replacement of components can jeopardize the suitability of the system in explosion endangered zones!
•Only disconnect and/or connect electrical operating means when the voltage supply is isolated or when a non-explosive atmosphere has been ascertained!
•Adhere to the specified data regarding voltage supply and fusing. (See data on the fuse holder)!
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Further Information |
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Proof of certification is available on request. |
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Also take note of the information given on the module technical information |
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Modular I/O System
ETHERNET TCP/IP