Rockwell-automation 1794-IJ2XT FLEX I/O Frequency Input Modules User M Manual de usuario descargar pdf (Pagina 45)

35 Publication 1794-6.5.11 - September 2011

Chapter

Read and Write Configuration Maps for the

FLEX I/O Module

Overview

This chapter describes how to configure, read data from, and map data to your

Frequency Input module.

Configure Your Frequency

Input Module

The frequency module is configured using a group of data table words that are

transferred to the module using a block transfer write instruction.

The software features available for configuration are:

• frequency range

• number of pulses to sample

• sampling time

• safe states

• fault modes

• alarms

Configure your module for its intended operation by means of your

programming terminal and write block transfers.

During normal operation, the processor transfers from 1…8 words to the

module when you program a BTW instruction to the module address.

Read Data From Your

Module

Read programming transmits status and data from the frequency input module

to the processor data table in one I/O scan. The processor user program

initiates the request to transfer data from the frequency input module to the

processor.

Topic Page

Configure Your Frequency Input Module 35

Read Data From Your Module 35

Map Data for the Module 36

Frequency Input Module Image Table Mapping 36

Chapter Summary 49

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Rockwell-automation 1794-IJ2XT FLEX I/O Frequency Input Modules User M Manual de usuario Pagina 45