Rockwell Automation 1771-IR , D17716.5.76 RTD INPUT MODULE - Manual (Page 25)

Chapter
5Ć1
Module Configuration
In this chapter you will read how to configure your module’s hardware,
condition your inputs and enter your data.
Because of the many analog devices available and the wide variety of possible
configurations, you must configure your module to conform to the analog
device and specific application that you have chosen. Data is conditioned
through a group of data table words that are transferred to the module using a
block transfer write instruction.
You can configure the following features for the 1771–IR series B module:
data format
RTD type
units of measure ( o C, o F or ohms)
real time sampling
calibration
bias
Configure your module for its intended operation by means of your
programming terminal and write block transfers (BTW).
Note: Programmable controllers that use 6200 software programming tools can
take advantage of the IOCONFIG utility to configure this module. IOCONFIG
uses menu–based screens for configuration without having to set individual bits
in particular locations. Refer to your 6200 software literature for details.
During normal operation, the processor transfers from 1 to 14 words to the
module when you program a BTW instruction to the module’s address. The
BTW file contains configuration words, bias values, and calibration values that
you enter for each channel. When a block transfer length of 0 is
programmed, the 1771–IR/B will respond with the Series A default of 14.
Chapter Objectives
Configuring Your RTD Module