Overview Of The Frequency Input Module; Overview; The Flex System - Rockwell Automation Allen-Bradley 1794-IJ2XT User Manual

Overview

The FLEX System

Adapter
+ +
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Overview of the Frequency Input Module

This chapter provides a description of the application and capabilities of the
1794 FLEX I/O Frequency Input module. It also explains the general
algorithm for calculating frequency.
Topic
The FLEX System
Type of Modules
Usage of the Frequency Input Module
The FLEX I/O Module in a Logix Control System
Typical Applications
Input Capabilities
Output Capabilities
How Frequency Is Calculated
Chapter Summary
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 system contains
the following components shown below:
Terminal base
• 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
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I/O module
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Publication 1794-6.5.11 - September 2011
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