CHAPTER 8 - CFW-09 OPTIONS AND ACCESSORIES
EtherNet/IP (IndustrialEtherNet Protocol) is a communication system proper for
the industrial environment. This system allows application data exchange, time-
restricted or critical, between industrial systems. The EtherNet/IPis available for
simple devices such as sensors/actuators as well as for complex devices such
as robots, PLCs, keypads and inverters.
TheEtherNet/IP applicationlayer protocolisbasedontheControland Information
Protocol (CIP) layer that is usedin both DeviceNet™ and ControlNet™. TheCIP
organizes the devices as collection of objects and defines the methods and
procedures for data access. Furthermore, the EtherNet/IP uses the standard
IEEE 802.3 for the low level layers and the TCP/IP and UDP/IP protocols for the
intermediary layers to transport the CIP packets.
Therefore, the infrastructure used by the EtherNet/IP is the same used by the
corporate computer networks (EtherNet). This fact extends considerably the
means of controlling and monitoring the devices connected to the network:
Availability of application protocols (HTTP, FTP, etc.)
It is based on a widely used and accepted standard.
Greaterdata flowthanthestandard protocolsusedforthe industrialautomation.
Example of an EtherNet/IP network
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