Analogue Input Unit displaying mA flowing

I am setting up a pressure sensor on a PC-GIM

I am trying to understand what the "Show Current Level is showing"


I want to display the "mA" flowing

If I have input set to 4 to 20mA and I have scale multiplyer 1 and offset 0

If 4.1mA is flowing the "Current level displays" 2(1%)

If 20mA is flowing will the current level display 255(100%) ??


How can I make it show the mA flowing ?

Multiplier "0.0784" Offset "4" Unit prefix "milli" Units "Amps"

is this correct ?

It has been along time since I have used one of these but I remember the "show current level displaying the units" or was that in a dream.

using tool kit 1.12.1

the Application log displays "4e-3 Amps"

Charles

 

Let me preceed everything I'm about to say with, I dont know for sure as I have never done it, but it looks to me like.

Firstly the log entry 4e-3 Amps is actually .004 Amps or 4ma

Looking at the values you get, they seem to range from 1 to 255 in the raw state.

It then looks like you are given the opportunity to do a linear scaling of that raw value using the equation;
Bx+C
where B is the raw value
x is the multiplier
and C is the offset

My rough calculations give you a multiplier of 0.062992125984252 (16/254) and an offset of 4

so a raw value of 1 yeilds 4.062992125984252
and a raw value of 255 yields 20.06299212598425

But then again, I might be talking complete rubbish.

Cheers

Rohan