Sandy sk

FX3U-4AD SCALING

3 posts in this topic

Posted (edited)

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 by Sandy sk

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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

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

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