Rockwell-automation 1794-OB16D FLEX I/O Diagnostic Modules User Manual Manual de usuario Pagina 15

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13 Publication 1794-UM061A-EN-P - July 2006
Chapter
1
1794 FLEX I/O Diagnostic Digital Modules
Overview
Introduction
In this chapter, you will learn about the diagnostic input module, cat. no.
1794-IB16D, and the diagnostic output module, cat. no. 1794-OB16D.
General Description
This chapter contains an overview of the FLEX I/O diagnostic digital
modules, the 1794-IB16D input module and 1794-OB16D output module.
You can use the FLEX I/O diagnostic modules to help diagnose problems
with input and output field devices, I/O wiring and the user power supply.
Additionally, these modules can reduce installation start-up time and help
minimize time to find and fix failures.
This chapter explains how to use the FLEX I/O diagnostic modules to help
detect the following types of faults:
Open input or output field devices
Open input or output wiring
Shorted output field devices
Shorted input or output wiring
Reversed polarity of user supply wiring
Open user supply wiring or failed user supply (using one diagnostic
input channel)
Topic See Page
General Description 13
Install Your Digital Input or Output Module 16
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