Allen-Bradley 1756-L63XT, Руководство пользователя

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86 Rockwell Automation Publication 1756-UM001O-EN-P - October 2014
Chapter 5 Communication Networks
EtherNet/IP Network
Communication The EtherNet/IP network offers a full suite of control, configuration, and data
collection services by layering the Common Industrial Protocol (CIP) over the
standard internet protocols, such as TCP/IP and UDP. This combination of
well-accepted standards provides the capability that is required to support
information data exchange and control applications.
The EtherNet/IP network uses commercially available Ethernet components and
physical media, providing you with a cost-effective plant-floor solution.
Figure 10 - EtherNet/IP Network Example
For more information about using EtherNet/IP modules, see the EtherNet/IP
Modules in Logix5000 Control Systems User Manual, publication
ENET-UM001 .
ControlLogix EtherNet/IP Module Features
The ControlLogix EtherNet/IP communication modules provide these features:
•
Support for messaging, produced/consumed tags, HMI, and
distributed I/O
• The ability to encapsulate messages within the standard TCP/UDP/IP
protocol
LINK NET OK
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Module
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Network
Activity
Network
Status
Point Bus
Status
System
Power
Field
Power
POINT I O
Link 1
Activity/
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Link 2
Activity/
Status
IP ADDRESS
• ControlLogix
• 1756-EN2T
CompactLogix™
PowerFlex 700S
Switch
1794-AENT
1756-EN2T
Distributed I/O
1734-AENT
Workstation
Device Level Ring (DLR) Topology
connected via 1783-ETAP with tap