https://forge.codesys.com/forge/talk/Engineering/thread/6300b1d3a7/2020-02-27T13:47:44.635000ZRecent posts to __TRY __CATCH questions2020-02-27T13:47:44.635000Z2020-02-27T13:47:44.635000ZJoan Mhttps://forge.codesys.com/u/joan-m/https://forge.codesys.com7a930c9f120cd1857e2b5cd72a515b3866f7dea6

<div class="markdown_content"><p>Thank you Josep M.</p> <p>It was well implemented (as you did and also as the code in the sample on that linked PDF file).</p> <p>I have not been able to find information about the enumeration __system.exceptionCode, but by now I think I won't need it.</p> <p>Thank you again!</p></div>

2020-02-27T13:47:44.574000Z2020-02-27T13:47:44.574000Zjosepmariaramshttps://forge.codesys.com/u/josepmariarams/https://forge.codesys.com5c93601b88f4977580f0f98fff1e54627c99acfe

<div class="markdown_content"><p>Hi Joan.</p> <p>It works for me as:</p> <p>You can found __system.exceptionCode enum on Codesys help.</p> <p><img alt="IMG: Captura de 2017" rel="nofollow" src="https://forum.codesys.com//download/file.php?id=2753"/></p> <p><img alt="IMG: Captura de 2017" rel="nofollow" src="https://forum.codesys.com//download/file.php?id=2755"/></p> <p><img alt="IMG: Captura de 2017" rel="nofollow" src="https://forum.codesys.com//download/file.php?id=2754"/></p></div>

2020-02-27T13:47:44.512000Z2020-02-27T13:47:44.512000ZJoan Mhttps://forge.codesys.com/u/joan-m/https://forge.codesys.coma9412a2e0a2232162f84254eae581875f1dd961f

<div class="markdown_content"><p>Hello all,</p> <p>I've been using structured exception handling in C and in other high level languages and I'm familiar with it's intended use.</p> <p>In one big program I'm developing now with TwinCAT 3 I have a problem in which randomly my programming computer gets disconnected from the controller and the controller reverts to configuration mode or simply hangs.</p> <p>There are plenty of loops and pointers involved and, even I've seen that same program working before... now it fails some times... (I've changed the TwinCAT version).</p> <p>Given __TRY __CATCH... are there to be able to help the programmer when a loop or a pointer are not working as expected I've tried to put a __TRY clause at the beginning and a __CATCH clause at the end of the main cycle (and of course the __END_TRY at the end), but the same behavior happens.</p> <p>See page 5 and 6 of the following PSF file: <a class="" href="https://www.codesys.com/fileadmin/data/Images/Download/FeaturesAndImprovementsV3.5SP6_en.pdf" rel="nofollow">https://www.codesys.com/fileadmin/data/Images/Download/FeaturesAndImprovementsV3.5SP6_en.pdf</a></p> <p>Should I activate something to get the SEH working in the controller (a PC)?</p> <p>And... How I should declare HandleException? Which type does it has?</p> <p>As always thank you very much.</p> <p>Joan.</p></div>