Analoge scaling

[MJ90 0]

Hi Dear all

I have a FBS-20MA fatek plc.

I wanna scale an analoge process, I did it by using F33 but my output is Integer.How can I convert it to floating point number?

The accuracy is important to me.

 

[MJ90 0]

Can't any one answer this question?

[panic mode 246]

you may want to post your code when asking for support.

without knowing range of values it may be premature to claim that REAL has better accuracy than INT. sure you may see more decimal places but this may be just misleading. and did you consider fixed point instead of floating point?

i am not familiar with Fatek PLCs, but quick look at their website easily allowed to find the manuals. instruction set manual should explain how to convert INT to REAL or the other way around. the documentation and instruction set looks very familiar (aka "Mitsubishian").

FUN33 is linear conversion using integers. you may want to convert raw value to REAL first (FUN200) then do the linear scaling your self using floating point instructions.