Rockwell Automation 1794-APB/B FLEX I/O PROFIBUS Adapter Module User Manual - Manual (Page 13)

Chapter
1
Publication 1794ĆUM057B-EN-P - November 2001
Overview of FLEX I/O and Your
PROFIBUS Adapter Module
This chapter describes:
•
what the FLEX I/O system is and what it contains
•
how to mount and remove your system easily
•
optional accessories
•
mounting dimensions and spacing requirements
•
the 1794-APB FLEX I/O PROFIBUS Adapter
•
adapter components
•
how to connect power wiring
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:
Adapter
Terminal Base
I/O Module
20125
•
PROFIBUS 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
For information on how communication occurs over the FLEX I/O
system backplane, refer to Chapter 2.
More Information...
What this Chapter Contains
The FLEX I/O System