Allen-Bradley MicroLogix 1000 User Manual

Name: Allen-Bradley MicroLogix 1000
Brand: Allen-Bradley
Rating: 4 (1 reviews)

422 pages

To Next Page

To Previous Page

Using Math Instructions

8–13

The following example takes a 0V to 10V analog input from a MicroLogix 1000

analog controller and scales the raw input data to a value between 0 and 100%. The

input value range is 0V to 10V which corresponds to 0 to 31,207 counts. The scaled

value range is 0 to 100 percent.

Application Example – Convert Voltage Input to Percent

Scaled Value

(percent)

Input Value

31,207 10V

100

(Scaled Max.)

(Scaled Min.)

(Input Min.) (Input Max.)

Calculating the Linear Relationship

Use

the following equations to calculate the scaled units:

Scaled value = (input value x rate) + offset

Rate = (scaled max. – scaled min.) / (input max. – input min.)

= (100 – 0) / (31,207 – 0)

= .00320 (or 32/10000)

Offset = scaled min. – (input min. x rate)

= 0

− (0 × .00320) = 0

efesotomasyon.com - Allen Bradley,Rockwell,plc,servo,drive

Questions and Answers:

Need help?

Do you have a question about the Allen-Bradley MicroLogix 1000 and is the answer not in the manual?

General