Recent posts to CPU in stop to update projecthttps://forge.codesys.com/forge/talk/CODESYS-V2/thread/be64727dc1/2020-02-27T19:33:59.213000ZRecent posts to CPU in stop to update projectCPU in stop to update project2020-02-27T19:33:59.213000Z2020-02-27T19:33:59.213000Zshooterhttps://forge.codesys.com/u/shooter/https://forge.codesys.comc5584598fa13e94fde87943785ab28b2c65d505f<div class="markdown_content"><p>it depends on what is changed, if the varlist is changed the cpu must stop<br/>
if only a variable is changed the cpu does not need a stop but i would recommend it.<br/>
if program is changed the cpu must stop even if inside a library there is a change.</p>
<p>If cpu is not allowed to stop you will have to write your program complete and good in one go.<br/>
remember the retain vars etc.</p>
<p>If process is that critical use another method like two plc next to each other with a changeover.<br/>
it is called redundant.</p></div>CPU in stop to update project2020-02-27T19:33:55.711000Z2020-02-27T19:33:55.711000Zhki75https://forge.codesys.com/u/hki75/https://forge.codesys.comeca6da7c221bfa298c6d4f258356f0d6b955e53b<div class="markdown_content"><p>I'm using Codesys not from long time... but still not clear 100% when CPU need to go to stop in order to update a program:</p>
<p>-if I "rebuild all " project--> STOP<br/>
-when I "build" (F11) ? (usually not..)--> NOT STOP<br/>
-when "moving" project from one pc to another?-->??<br/>
other-->?</p>
<p>I mean, what is the rule for that? (in some process a CPU going to stop to update the program is not acceptable...)</p>
<p>Regards</p></div>