https://forge.codesys.com/forge/talk/Engineering/thread/8980db9dc1/2025-11-21T09:48:54.768000ZRecent posts to OSCAT Scale_r function not working in LD 4.60 works in LAD2 on 3.5.21sp32025-11-21T09:48:54.768000Z2025-11-21T09:48:54.768000ZAntonZhttps://forge.codesys.com/u/antonz/https://forge.codesys.com733b0bd8bb05d05b8518115a4e3aeae7c9c8adfa

<div class="markdown_content"><p>That's what I found as well Shaun. I have seen it at least in versions 3.5.21.1 and 3.5.21.3. There seems to be an issue with the FBD/LD package v4.6.0.0. The workaround proposed by Tim works but needs to be done manually on every code change/addition. </p> <p>For now we manually downgrade the FBD/LD package from v4.6.0.0 down to v4.5.0.0 after installation of CoDeSys. Same as you did. I hope this gets fixed on a next patch. </p></div>

2025-11-17T08:08:08.817000Z2025-11-17T08:08:08.817000Zshaunvdmhttps://forge.codesys.com/u/shaunvdm/https://forge.codesys.com683691f3eadae229b9dc408b643130d56878f796

<div class="markdown_content"><p>Hi All,</p> <p>We downgraded Codesys LAD/FB in the IDE to version 4.5 and it works. Codesys Version 4.6 lad/fb not working.</p> <p>Was the way we fixed this.</p> <p>Kind Regards</p> <p>Shaun</p></div>

2025-10-26T10:56:24.644000Z2025-10-26T10:56:24.644000Zkishanhttps://forge.codesys.com/u/kishan/https://forge.codesys.come821d26ef318ce4ad713d2bc8530f1bf88a5540c

<div class="markdown_content"><p>here is formula for scale function you can impliment your own scale function</p> <p>Output=OutMin+(Input−InMin)×(InMax−InMin)(OutMax−OutMin)</p> <p>FUNCTION_BLOCK FB_Scale<br/> VAR_INPUT<br/> xIn : REAL; // Input value (e.g., raw sensor)<br/> xInMin : REAL; // Input range minimum<br/> xInMax : REAL; // Input range maximum<br/> xOutMin : REAL; // Output range minimum<br/> xOutMax : REAL; // Output range maximum<br/> END_VAR</p> <p>VAR_OUTPUT<br/> xOut : REAL; // Scaled output<br/> END_VAR</p> <p>VAR<br/> xGain : REAL;<br/> xOffset : REAL;<br/> END_VAR</p> <p>// Implementation<br/> xGain := (xOutMax - xOutMin) / (xInMax - xInMin);<br/> xOffset := xOutMin - xGain * xInMin;<br/> xOut := xGain * xIn + xOffset;</p></div>

2025-10-26T10:46:34.913000Z2025-10-26T10:46:34.913000ZTimvHhttps://forge.codesys.com/u/timvh/https://forge.codesys.com355d84df35af06ef8a199553c2e882ea93ef5a90

<div class="markdown_content"><p>It seems like a bug in FBD. Work-around:<br/> If you click on the small line between the box and the output variable and delete this, the variable is removed. When you then assign a variable again (Ctrl-A), then you will see that the line will be a bit longer. If you then select the previous variable, you will see that it works.</p></div>

2025-10-24T10:43:41.853000Z2025-10-24T10:43:41.853000Zshaunvdmhttps://forge.codesys.com/u/shaunvdm/https://forge.codesys.comcb785732f134685f1b71a2a3c8dc53b617cdf3cf

<div class="markdown_content"><p>Yes it is called</p></div>

2025-10-23T10:41:11.317000Z2025-10-23T10:41:11.317000Zph0010421https://forge.codesys.com/u/ph0010421/https://forge.codesys.coma5989b0356cd7ebd5b600f6da8325e29e9f93e21

<div class="markdown_content"><p>Is that rung definitely being executed? Is the POU called?</p></div>

2025-10-23T09:57:06.263000Z2025-10-23T09:57:06.263000Zshaunvdmhttps://forge.codesys.com/u/shaunvdm/https://forge.codesys.coma463d42da23c3f12e77f48dc0d60dd42827bf2ef

<div class="markdown_content"><p>Hi We have picked up an issue<br/> OSCAT_BASIC.Scale_r function call not working in the old lad and FBD version 4.60. <br/> Gives no output on the function call. When we convert this to LAD2 it works.</p> <p>As can be see by the two screenshot in normal LD not working in LAD2 it works.</p> <p>Please confirm if this is an issue with Oscat or with LAD in 3.5.21sp3, is there an workaround.</p> <p>Regards</p> <p>Shaun</p></div>