https://forge.codesys.com/forge/talk/Engineering/thread/3a2edc107d/2023-03-10T08:00:44.253000ZRecent posts to How to convert UDINT to array of bytes ? 2023-03-10T08:00:44.253000Z2023-03-10T08:00:44.253000Zvformanekhttps://forge.codesys.com/u/vformanek/https://forge.codesys.comc8b33c39d674e45dbcb9e4a03584d3cba249b872

<div class="markdown_content"><p>nevermind, I did something wrong in the conversion, my bad. Thanks! </p></div>

2023-03-10T07:50:24.235000Z2023-03-10T07:50:24.235000Ztimvhhttps://forge.codesys.com/u/timvh/https://forge.codesys.com2b8dca63899427e5c204dc53aed73aaf76726628

<div class="markdown_content"><p>2172731138 = hex 81 81 3F 02<br/> hex 02 = dec 2<br/> hex 3F = dec 63<br/> hex 81 = dec 129</p> <p>So this seems okay to me.</p></div>

2023-03-10T07:37:22.582000Z2023-03-10T07:37:22.582000Zvformanekhttps://forge.codesys.com/u/vformanek/https://forge.codesys.combe115d05a4335431457ff45c51e27ec864fa7c5b

<div class="markdown_content"><p>I have tried this approach, but it seems to be inconsistent. Here is the code i have come with: </p> <div class="codehilite"><pre><span></span><span class="err">TYPE uDINTBytes :</span> <span class="err"> UNION</span> <span class="err"> rValue: UDINT; </span> <span class="err"> abValue: ARRAY [0..3] OF BYTE;</span> <span class="err"> END_UNION</span> <span class="err">END_TYPE</span> </pre></div> <p>But here is the output whitch is wrong. </p></div>

2023-03-08T07:38:39.477000Z2023-03-08T07:38:39.477000Ztimvhhttps://forge.codesys.com/u/timvh/https://forge.codesys.comfa6a14b6875cd589942f5c0f3f90e30ff80db13e

<div class="markdown_content"><p>You could also create a DUT of the Type Union.<br/> In the Union add an array of 4 bytes and a UDINT.</p> <p>Then create a variable of this type.<br/> Write to the UDINT of this union variable and read the array of bytes.</p> <p>See <a href="https://content.helpme-codesys.com/en/CODESYS%20Development%20System/_cds_datatype_union.html" rel="nofollow">https://content.helpme-codesys.com/en/CODESYS%20Development%20System/_cds_datatype_union.html</a></p></div>

2023-03-06T12:46:34.804000Z2023-03-06T12:46:34.804000Zsedoerrhttps://forge.codesys.com/u/sedoerr/https://forge.codesys.comf0ff13f88e647f065907b197b5fed12f2e60a00f

<div class="markdown_content"><p><img src="./attachment/attachment.png" width="50%"/></p></div>

2023-03-06T12:07:54.589000Z2023-03-06T12:07:54.589000Zvformanekhttps://forge.codesys.com/u/vformanek/https://forge.codesys.com5fee0893a041631a6fc9f02ccece55acf7fa35fb

<div class="markdown_content"><p>could you provide a screenshot solution of the block call ? i seem to get exceptions about access violation when running the program </p></div>

2023-03-06T10:22:55.151000Z2023-03-06T10:22:55.151000Zsedoerrhttps://forge.codesys.com/u/sedoerr/https://forge.codesys.com92842193392bca1ea9e3797ca082eaec3966f742

<div class="markdown_content"><p>use UDINT_TO_DWORD and then use Library "SysMem.SysMemCopy" to copy your DWORD onto your Array of Bytes.</p></div>

2023-03-06T10:02:17.853000Z2023-03-06T10:02:17.853000Zvformanekhttps://forge.codesys.com/u/vformanek/https://forge.codesys.com3f97dff05a4d5a8ead58d8ac5732b497f8d65111

<div class="markdown_content"><p>I have a UDINT value whitch represents PNIO_Status and i would like to convert it to 4 bytes so i can decode it by this website: <a href="https://content.helpme-codesys.com/en/CODESYS%20PROFINET/_pnio_diagnosis_pnio_state.html" rel="nofollow">https://content.helpme-codesys.com/en/CODESYS%20PROFINET/_pnio_diagnosis_pnio_state.html</a><br/> How can i convert the UDINT value to 4 BYTES so it would corespond to the page I have provided earlier ? </p></div>