Rockwell Automation 1794-AENTR_AENTRXT FLEX I/O Dual Port EtherNet/IP Adapter Modules - Manual (Page 9)

1 Publication 1794-UM066A-EN-P - February 2012
Chapter
1
Overview of FLEX I/O and Your Redundant
EtherNet/IP Adapter Module
Overview This chapter provides a description of the FLEX I/O dual port EtherNet/IP
adapter modules and an overview of how they communicate with
programmable controllers.
The FLEX I/O System The FLEX I/O system is a small, modular I/O system for distributed
applications that performs all of the functions of rack-based I/O. The FLEX I/O
system contains the following components:
•
Adapter – transfers read and write configuration data to and from the
I/O module
•
Terminal base – contains a terminal strip to terminate wiring for two- or
three-wire devices
•
I/O module – contains the bus interface and circuitry needed to perform
specific functions related to your application
Topic Page
The FLEX I/O System 1
Adapter Features 2
Types of Adapters 2
Hardware and Software Compatibility 2
What the Adapter Does 3
Use of the Control and Information Protocol (CIP) 3
Understanding the Producer/Consumer Model 3
Specifying the Requested Packet Interval (RPI) 4
Support of Rack Optimized and Direct Connections 4
Adapter I/O module Terminal base
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