- •TABLE OF CONTENTS
- •Important Comments
- •Legal Principles
- •Copyright
- •Personnel Qualification
- •Intended Use
- •Symbols
- •Font Conventions
- •Number Notation
- •Scope
- •Abbreviation
- •The WAGO-I/O-SYSTEM 750
- •System Description
- •Technical Data
- •Manufacturing Number
- •Storage, Consignment and Transport
- •Mechanical Setup
- •Installation Position
- •Total Expansion
- •Assembly onto Carrier Rail
- •Carrier rail properties
- •WAGO DIN Rail
- •Spacing
- •Plugging and Removal of the Components
- •Assembly Sequence
- •Internal Bus / Data Contacts
- •Power Contacts
- •Wire connection
- •Power Supply
- •Isolation
- •System Supply
- •Connection
- •Alignment
- •Field Supply
- •Connection
- •Fusing
- •Supplementary power supply regulations
- •Supply example
- •Power Supply Unit
- •Grounding
- •Grounding the DIN Rail
- •Framework Assembly
- •Insulated Assembly
- •Function Earth
- •Protective Earth
- •Shielding (screening)
- •General
- •Bus Conductors
- •Signal Conductors
- •WAGO Shield (Screen) Connecting System
- •Assembly Guidelines / Norms
- •Fieldbus Coupler/Controller
- •Fieldbus Coupler 750-306
- •Description
- •Hardware
- •View
- •Device Supply
- •Fieldbus Connection
- •Display Elements
- •Configuration Interface
- •Hardware Address (MAC ID)
- •Setting the Baud Rate
- •Operating System
- •Process Image
- •Data Exchange
- •Communication Interfaces
- •Memory Areas
- •Addressing
- •Fieldbus Specific
- •Configuration Software
- •Starting up DeviceNet Fieldbus Nodes
- •Connecting the PC and Fieldbus Node
- •Setting the MAC ID and Baud Rate
- •Configuration with Static Assembly
- •LED Display
- •Node Status
- •Blink Code
- •Fault Message via the Blink Code of the I/O LED
- •Supply Voltage Status
- •Technical Data
- •Fieldbus Controller 750-806
- •Description
- •Hardware
- •View
- •Device Supply
- •Fieldbus Connection
- •Display Elements
- •Configuration and Programming Interface
- •Operating Mode Switch
- •Hardware Address (MAC ID)
- •Setting the Baud Rate
- •Operating System
- •Start-up
- •PLC Cycle
- •Process Image
- •Data Exchange
- •Communication Interfaces
- •Memory Areas
- •Addressing
- •Fieldbus Specific
- •Absolute Addressing
- •Calculate Addresses
- •Address Range for I/O Module Data
- •Address Range for Fieldbus Variables
- •Address Range for Flags
- •Example for Absolute Addresses
- •Programming the PFC with WAGO-I/O-PRO 32
- •WAGO-I/O-PRO 32 Library Elements
- •IEC 61131-3 Program Transfer
- •Transmission via the Serial Interface
- •Transmission via the Fieldbus
- •Special DeviceNet Features of the Controller
- •Connection via the UCMM port
- •Offline Connection Set
- •DeviceNet Shutdown
- •Dynamic Assembly
- •Change MAC ID by SW
- •Heartbeat
- •Bit-Strobe
- •Configuration Software
- •Starting-up DeviceNet Fieldbus Nodes
- •Connecting the PC and Fieldbus Node
- •Setting the MAC ID and Baud Rate
- •Configuration with Static and Dynamic Assembly
- •LED Display
- •Node Status
- •Blink Code
- •Fault Message via the Blink Code of the I/O LED
- •Supply Voltage Status
- •Technical Data
- •I/O modules
- •DeviceNet
- •Description
- •Network Architecture
- •Transmission Media
- •Type of Cable
- •Cable Types
- •Maximum Bus Length
- •Cabling
- •Network Topology
- •Network Grounding
- •Interface Modules
- •Network Communication
- •Objects, Classes, Instances and Attributes
- •Module Characteristics
- •Communication Model
- •Message Groups
- •Message Types
- •I/O Messaging
- •Explicit Messaging
- •I/O Messaging Connections
- •Process data and Diagnostic Status
- •Process Image
- •Assembly Instances
- •Configuration / Parametering with the Object Model
- •EDS Files
- •Object Model
- •Identity Class (0x01):
- •Message Router (0x02):
- •DeviceNet Object (0x03):
- •Assembly Object (0x04):
- •Connection Object (0x05):
- •Acknowledge Handler Object (0x2B):
- •Coupler configuration object (0x64):
- •Discrete Output Point Object (0x66):
- •Analog Input Point Object (0x67):
- •Analog Output Point Object (0x68):
- •Supplement to the Object Model for Controller 750-806
- •Bit-Strobe
- •Dynamic Assembly
- •New Classes for the PFC Fieldbus Variables
- •Class 160 (0xA0) Input PLC Fieldbus Variable USINT
- •Class 161 (0xA1) Input Fieldbus Variable USINT
- •Class 162 (0xA2) Input Fieldbus Variable USINT
- •Class 163 (0xA3) Output Fieldbus Variable USINT
- •Class 164 (0xA4) Output Fieldbus Variable USINT
- •Class 165 (0xA5) Output Fieldbus Variable USINT
- •Class 166 (0xA6) Input Fieldbus Variable UINT
- •Class 167 (0xA7) Input Fieldbus Variable UINT
- •Class 168 (0xA8) Output Fieldbus Variable UINT
- •Class 169 (0xA9) Output Fieldbus Variable UINT
- •Class 170 (0xAA) Input Fieldbus Variable UDINT
- •Class 171 (0xAB) Input Fieldbus Variable UDINT
- •Class 172 (0xAC) Output Fieldbus Variable UDINT
- •Class 173 (0xAD) Output Fieldbus Variable UDINT
- •Class 100 (0x64) - Attribute 44/100/101
- •Identity Class 1 (0x01)
- •Connection Object (0x05)
- •Additional Assembly Instances 10 and 11
- •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
Application in Explosive Environments • 143
Classification Meeting CENELEC and IEC
6.3.5 Types of Ignition Protection
Ignition protection defines the special measures to be taken for electrical components in order to prevent the ignition of surrounding explosive atmospheres. For this reason a differentiation is made between the following types of ignition protection:
Identifi- |
CENELEC Standard |
IEC Stan- |
Explanation |
Application |
|
cation |
|
dard |
|
|
|
EEx o |
EN 50 015 |
IEC 79-6 |
Oil encapsulation |
Zone 1 + 2 |
|
|
|
|
|
|
|
EEx p |
EN 50 016 |
IEC 79-2 |
Overpressure encap- |
Zone 1 + 2 |
|
|
|
|
sulation |
|
|
|
|
|
|
|
|
EEx q |
EN 50 017 |
IEC 79-5 |
Sand encapsulation |
Zone 1 + 2 |
|
|
|
|
|
|
|
EEx d |
EN 50 018 |
IEC 79-1 |
Pressure resistant |
Zone 1 + 2 |
|
|
|
|
encapsulation |
|
|
|
|
|
|
|
|
EEx e |
EN 50 019 |
IEC 79-7 |
Increased safety |
Zone 1 |
+ 2 |
|
|
|
|
|
|
EEx m |
EN 50 028 |
IEC 79-18 |
Cast encapsulation |
Zone 1 |
+ 2 |
|
|
|
|
|
|
EEx i |
EN 50 020 (unit) |
IEC 79-11 |
Intrinsic safety |
Zone 0 |
+ 1 + 2 |
|
EN 50 039 (system) |
|
|
|
|
|
|
|
|
|
|
EEx n |
EN 50 021 |
IEC 79-15 |
Electrical components |
Zone 2 |
|
|
|
|
for zone 2 (see below) |
|
|
|
|
|
|
|
|
Ignition protection “n" describes exclusively the use of explosion protected electrical components in zone 2. This zone encompasses areas where explosive atmospheres can only be expected to occur rarely or short-term. It represents the transition between the area of zone 1, which requires an explosion protection and safe area in which for instance welding is allowed at any time.
Regulations covering these electrical components are being prepared on a world-wide scale. The standard EN 50 021 allows electrical component manufacturers to obtain certificates from the corresponding authorities for instance KEMA in the Netherlands or the PTB in Germany, certifying that the tested components meet the above mentioned standards draft.
Type “n” ignition protection additionally requires electrical components to be marked with the following extended identification:
•A – non spark generating (function modules without relay /without switches)
•AC – spark generating, contacts protected by seals (function modules with relays / without switches)
•L – limited energy (function modules with switch)
Further information
For more detailed information please refer to the national and/or international standards, directives and regulations!
WAGO-I/O-SYSTEM 750
DeviceNet