Application Programming Examples; Channel Configuration; Basic Example (To Display A Temperature) - Allen-Bradley B Series User Manual

Basic Example
(to display a temperature)
Publication 1746-6.16 – January 1999

Application Programming Examples

This chapter provides two application examples to help you use the module:
basic example
supplementary example
The basic example lets you display a temperature.
The supplementary example lets you manually select the display of
temperature in C or F.
Application Setup
This example lets you display the temperature of a bath F on an LED
display device. The display device requires BCD data, so the program must
convert the temperature reading to BCD.
SLC 5/02

Channel Configuration

Configure the thermocouple channel with the following setup:
type J thermocouple (bits 3-0)
F displayed in whole degrees with EU = x10 (bits 8, 5, 4)
zero the data word in the event of an open circuit (bits 7, 6)
Allen-Bradley
Chapter
9
1746-OB16
1746-INT4
LED Display
(DC sinking inputs, BCD format)
Thermocouple Type J
Bath
9–1