User manual
1 Publication 1794-UM063A-EN-P - March 2006
Preface
Why Read This Manual
This manual shows you how to use your FLEX I/O™ analog modules with 
the ControlNet
™ products and ControlNet network, and EtherNet products 
and EtherNet network. The manual helps you install, program, and 
troubleshoot your module.
Who Should Read This 
Manual
You must be able to program and operate a ControlNet product and 
ControlNet network to make efficient use of a FLEX I/O module.
About the Vocabulary
In this manual, we refer to the:
• 1794-IE8H as the ’input module’
• 1794-OE8H as the ’output module’
What This Manual Contains
The following chart lists each chapter with its corresponding title and a brief 
overview of the topics covered in that chapter.
Chapter Title Contents
1 About the FLEX I/O HART Analog 
Modules
Describes module functionality and 
physical features
2 Configurable FLEX I/O Analog Module 
Features
Describes configurable module 
features and configuration bits
3 Install Your FLEX I/O Analog Modules How to install and wire the modules
4 Input, Output and Configuration Files 
for the Analog I/O Modules on the 
ControlNet Network
Describes how to use these I/O 
modules over the ControlNet 
network
5 Calibrate Your Module Lists the tools needed, and the 
methods used to calibrate the 
module
6 Troubleshoot the FLEX I/O Analog I/O 
Modules
How to use the indicators to 
troubleshoot your module
Appendix Title Contents
A Specifications Outlines module specifications and 
accuracy
B FLEX I/O HART Module Commands Explains how to program the analog 
modules
C Additional HART Protocol Information Discusses the HART protocol and 
provides references for additional 
information about the protocol










