https://forge.codesys.com/forge/talk/CODESYS-V2/thread/de0093c782/2020-02-27T19:36:52.807000ZRecent posts to Real Data Type Range limitation2020-02-27T19:36:52.807000Z2020-02-27T19:36:52.807000ZAnonymoushttps://forge.codesys.com/u/*anonymous/https://forge.codesys.come8c93944e491b3262816d246735cb0b31cfb1ba2

<div class="markdown_content"><p><em>Originally created by:</em> Mikhail Shvetsov</p> <p>IMHO - In My Humble Opinion. You misunderstood me. It’s my fault, sorry. </p> <p>Ok, do you have DINT ( UDINT ) type? This type has 32 bits and you could use 10 numbers. You can convert REAL type into UDINT (or DINT if you need “-“) by multiplying to integer. After that it becomes possible to operate without missing accuracy.</p></div>

2020-02-27T19:36:49.206000Z2020-02-27T19:36:49.206000ZRajeshGandhihttps://forge.codesys.com/u/rajeshgandhi/https://forge.codesys.coma561a465f752eeb0d162a16da23ce58c5ea8badf

<div class="markdown_content"><p>Could you please provide more information on IMHO function. How to implement?</p> <p>Regards</p> <p>Rajesh G</p></div>

2020-02-27T19:36:47.932000Z2020-02-27T19:36:47.932000ZAnonymoushttps://forge.codesys.com/u/*anonymous/https://forge.codesys.coma247fa670463c47e63d6dd51c9ec1e16116c3059

<div class="markdown_content"><p><em>Originally created by:</em> Mikhail Shvetsov</p> <p>Real type has 32 bits, but mantissa of real type has only 23 bits. It’s a reason of limits data accuracy about 7 decimal numbers. Your values of variables acquire 8 numbers, and last number is wrong.</p> <p>LREAL type has twice more bits of mantissa then REAL type.</p> <p>If you don’t have LREAL you should write special function (IMHO) which would be able to work with “compound” data.</p></div>

2020-02-27T19:36:44.349000Z2020-02-27T19:36:44.349000ZRajeshGandhihttps://forge.codesys.com/u/rajeshgandhi/https://forge.codesys.comfdca7e18bf96c1a6432f183b707a992d3841fad2

<div class="markdown_content"><p>Our target will not support LREAL.</p> <p>Regards</p> <p>Rajesh G</p></div>

2020-02-27T19:36:42.993000Z2020-02-27T19:36:42.993000ZAnonymoushttps://forge.codesys.com/u/*anonymous/https://forge.codesys.come5c367a8f3d0203095c281a8bcc9fd811e2c42e1

<div class="markdown_content"><p><em>Originally created by:</em> Mikhail Shvetsov</p> <p>use LREAL type, i've checked up it works.</p></div>

2020-02-27T19:36:41.717000Z2020-02-27T19:36:41.717000ZRajeshGandhihttps://forge.codesys.com/u/rajeshgandhi/https://forge.codesys.com4c4e47083ea78b34050a729af01bc9c39a56e184

<div class="markdown_content"><p>We are using codesys as a development tool for GUI application. We developed a function that displays real data type value to user. We are facing problem of displaying / processing the real values after certain limit.</p> <p>For e.g refer the attached project.</p> <p>In the attached project we are adding two real values 33554442.5 + 2.5 and the result was 33554448.00, So could you please help us to get correct value 33554445.00.</p> <p>Regards</p> <p>Rajesh G</p></div>