https://forge.codesys.com/forge/talk/Runtime/thread/8fd7d54b1d/2020-02-27T16:03:59.594000ZRecent posts to Shutdown2020-02-27T16:03:59.594000Z2020-02-27T16:03:59.594000ZPhilipLykovhttps://forge.codesys.com/u/philiplykov/https://forge.codesys.com9829309bbe7f9781ffbad0d5b83dfdfb0f7cb4a4

<div class="markdown_content"><p>Edwin, thank you for assistance. Now I'm working on UPS PIco integration with Codesys. So my Raspberry PI has UPS.</p></div>

2020-02-27T16:03:57.379000Z2020-02-27T16:03:57.379000Zeschwellingerhttps://forge.codesys.com/u/eschwellinger/https://forge.codesys.com55a7f453ec18347a1a14f7877f41ba7f482de601

<div class="markdown_content"><p>Hi,<br/> you need a graceful shutdown of the Linux OS only then the Retain file is saved by the plc runtime.<br/> So the only possibility to have reliable retains to use an UPS -Uninterruptible power supply which <br/> Triggers then a shutdown of the Linux system.</p> <p>the retains file will be saved to /root/ in case your Applcation is named Application you will find there Application.ret</p> <p>BR<br/> Edwin</p></div>

2020-02-27T16:03:56.588000Z2020-02-27T16:03:56.588000ZPhilipLykovhttps://forge.codesys.com/u/philiplykov/https://forge.codesys.com343bb1abf6efea0165c38b97880993c222c2ef8e

<div class="markdown_content"><p>Will the Codesys runtime environment properly shutdown and save all retain variables when Raspberry PI shuts down by 'shutdown --halt' command?<br/> And more general question: does the Codesys on Raspberry PI honor retain variables and where does it save them?</p></div>