help using FX3u mitsubishi

[Don isra]

hello everyone
I'm new to this PLC mitsubishi FX3U and fx 4AD analog module I'm using a ultrasonic sensor 4 - 20mA to measure liquid level in tank

I get a digital value on channel one H3303
of 16400 in the register D0,
but I want a point measured in meters with floating point 3.5[m] but I get error for example using DEDIV D0 E5.5 D100

and I thought in another option
by dividing D0 to another value for example
DIV D0 K10 D20 | | D0 = 198
D20 = 19 and D21 = 8
I want the measure like this 19.8 but i dont know how

Thanks for your help

 

[dploof23]

hello everyone
I'm new to this PLC mitsubishi FX3U and fx 4AD analog module I'm using a ultrasonic sensor 4 - 20mA to measure liquid level in tank

I get a digital value on channel one H3303
of 16400 in the register D0,
but I want a point measured in meters with floating point 3.5[m] but I get error for example using DEDIV D0 E5.5 D100

and I thought in another option
by dividing D0 to another value for example
DIV D0 K10 D20 | | D0 = 198
D20 = 19 and D21 = 8
I want the measure like this 19.8 but i dont know how

Thanks for your help

In your code you must convert the value to floating point before doing the math.

It would look like this:

M8000
-I I--------------[DFLT D0 D2]

M8000
-I I--------------[DEDIV D2 E5.5 d100]

Keep in mind each of these will occupy 2 registers as they are 32 bit.

You can convert back to an integer using the instruction DINT

Hope this helps,

-Dave

 

[Don isra]

thansk and help gto1000

thanks for your help it was very useful

i have another problem
i using a touch panel GTO1000 MITSUBISHI and GT Designer3
I want to use HISTORICAL DATA LIST DISPLAY to save the data that I get from the analog module but I can not do it.
the manual tells me to do the steps as [object] ---- [data list display] --------- [historical data list display].
but my GT Designer does not have this
maybe my GT designer is not updated and the version that I have, doesn't have this