FX3U-4AD SCALING

[Sandy sk 0]

Hi everyone, i have FX3U-4AD input module. i have to show the value when it is 4ma -2000 and 20ma +2000. i am very much confused about the scaling.please someone help me to solve this.

4ma	245
5ma	495
6ma	746
7ma	996
8ma	1247
9ma	1497
10ma	1747
11ma	1998
12ma	2248
13ma	2499
14ma	2749
15ma	2999
16ma	3249
17ma	3500
18ma	3750
19ma	4001
20ma	4251

 

These are the values plc reading... From this how can i convert..?

i used the formula  (o/p max limit-min limit) / (i/p max - i/p min) * current value... 

can anyone show me exact scaling for this please

Edited 26 Mar 2021 by Sandy sk

[nehpets 19]

Welcome,

As a start I would check out the  Analogue Manual Section B there is a mass of info along with a practical programming example to get your teeth into.

 

Steve

[pcmccartney1 141]

Seems like you simply need to subtract 2250, thus shifting to -2000 to 2000.