Allen-Bradley 1794ASB Series B User Manual

Chapter 1
Publication 17946.5.3
Overview of FLEX I/O and your
Remote I/O Adapter Module
In this chapter, we tell you about:
• what the FLEX I/O system is and what it contains
• how FLEX I/O modules communicate with programmable
controllers
• the features of your adapter module
FLEX I/O 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 shown below:
Adapter
Terminal Base
I/O Module
20125
• adapter/power supply – powers the internal logic for as many as
eight I/O modules
• 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
Chapter Objectives
The FLEX I/O System

Allen-Bradley 1794ASB Series B Specifications

General

Brand	Allen-Bradley
Model	1794ASB Series B
Category	Adapter
Language	English