https://forge.codesys.com/forge/talk/CODESYS-V2/thread/e49f9d0b5c/2020-05-06T07:02:14.435000ZRecent posts to sunset/sunrise switch outside lights2020-05-06T07:02:14.435000Z2020-05-06T07:02:14.435000Zahmedhttps://forge.codesys.com/u/ahmed/https://forge.codesys.comf8a70b5878c9458c931ffe5fa47ed67137510736

<div class="markdown_content"><p>Hello,</p> <p>did you solve this?<br/> Im interested in conditions for day night in relation to angles?</p> <p>BR</p></div>

2020-02-27T22:07:55.534000Z2020-02-27T22:07:55.534000Zfleaplchttps://forge.codesys.com/u/fleaplc/https://forge.codesys.com4f0d241bea7b555878e05ea27f12e609a36fbbf5

<div class="markdown_content"><p>FB (Oscat) is SUN_POS (§12.50). By this you can get the sun position : when Zenith &lt; -0.8333 it means sunset is done (you can turn on the lights)</p></div>

2020-02-27T22:07:51.247000Z2020-02-27T22:07:51.247000ZSerhioromanohttps://forge.codesys.com/u/serhioromano/https://forge.codesys.com4f2f3b726d1e8a3c0146562082bf4e33fbd15fc5

<div class="markdown_content"><blockquote> <p><strong>jpesout hat geschrieben:</strong><br/> Can this also be used with codesys 2.3? I am still using the old version for my PLC</p> </blockquote> <p>Yes it can. I used it fine.</p></div>

2020-02-27T22:07:49.718000Z2020-02-27T22:07:49.718000Zjpesouthttps://forge.codesys.com/u/jpesout/https://forge.codesys.comf0196093dbcc31283df065b70b27748b3f82b309

<div class="markdown_content"><p>Can this also be used with codesys 2.3? I am still using the old version for my PLC</p></div>

2020-02-27T22:07:45.418000Z2020-02-27T22:07:45.418000Zeschwellingerhttps://forge.codesys.com/u/eschwellinger/https://forge.codesys.com51b0a3fe594d4324b88b687ae13b19d3fa12e06a

<div class="markdown_content"><p>Hi,<br/> check the OSCAT Libs:<br/> <a class="" href="https://store.codesys.com/catalogsearch/result/?q=OSCAT" rel="nofollow">https://store.codesys.com/catalogsearch/result/?q=OSCAT</a><br/> BR<br/> Edwin</p></div>

2020-02-27T22:07:43.880000Z2020-02-27T22:07:43.880000Zjpesouthttps://forge.codesys.com/u/jpesout/https://forge.codesys.com1312960a256e16e368d498d78ebba7f419dd1bb4

<div class="markdown_content"><p>Hi,</p> <p>I am trying to program outdoor lights, without a sensor, just switch on when it becomes dark.<br/> I am using the Calculate_SunriseSunset function block, based on longitudinal and latitudinal.<br/> this gives me the correct elevation and azimuth of the sun.</p> <p>How can I now use this to trigger my relays?<br/> And beside this, I also want to be able to swith them off/on manually.<br/> For all my other lights, I am using the FB_LatchingRelay to switch on/off the lights.</p> <p>Is all this possible using function blocks? Or do I need to program this myself in ST?<br/> (I think I cannot find the SunriseSunset calculation in ST)</p> <p>The basis idea is that my lights are switched on when it is dark enough outside and that I am able to switch them on/off manually, overriding the "dark enough" option.</p> <p>Can someone help me with this?</p></div>