Rockwell Automation 1746-NI8 SLC 500 Analog Input Modules User Manual - Manual (Page 66)

Chapter
8
Publication 1746Ć6.8 - April 1997
Application Examples
This chapter provides two application examples to help you use the
analog input module. They are defined as a:
•
basic example
•
supplementary example
The basic example builds on the configuration word programming
provided in chapter 6 to set up one channel for operation. This setup
is then used in a typical application to display a current (amperage)
value.
The supplementary example demonstrates how to perform a
dynamic configuration of five of the eight available channels. The
example sets up an application that allows you to manually select
whether the current transducer data is displayed for L1, L2, or L3.
The example also includes configuration and programming to
display pressure and liquid level.
Application Setup - Display a Current (amperage) Value
In this example, the current draw of a single-phase motor is shown
on an LED display. The display requires BCD data, so the program
must convert the current reading from the analog input module to
BCD before sending it to the display.
Device Configuration
1746ĆNI8
1746ĆOB16
Single
Phase
Motor
LED Display
(DC sinking inputs,
BCD format)
Current
Transducer
SLC 5/04 processor
L1 L2
i
Basic Example