https://forge.codesys.com/forge/talk/CODESYS-V2/thread/ba19e65184/2020-02-27T19:54:06.347000ZRecent posts to see it2020-02-27T19:54:06.347000Z2020-02-27T19:54:06.347000ZDaLorDhttps://forge.codesys.com/u/dalord/https://forge.codesys.com0557b3c67c72080c0b8dac33b35836a0700c7523

<div class="markdown_content"><p>It is a selection function.</p> <p>You change the state of the output with an boolean input.</p> <p>The Variables In1 and In2 can be of any kind</p> <p>example in ST</p> <p>IF YourBooleanVariable THEN</p> <p>YourOutPutVariable:=YourInputVariable1;</p> <p>ELSE</p> <p>YourOutPutVariable:=YourInputVariable2;</p> <p>END_IF</p> <p>Some call it a "Analog switch"</p></div>

2020-02-27T19:54:05.047000Z2020-02-27T19:54:05.047000Zdengjunhttps://forge.codesys.com/u/dengjun/https://forge.codesys.comc7fd0046109325b6dbe21af81370fb496d4b6583

<div class="markdown_content"><p>hello:</p> <div class="codehilite"><pre><span></span> <span class="n">I</span> <span class="n">have</span> <span class="n">a</span> <span class="n">little</span> <span class="n">question</span><span class="p">.</span><span class="n">please</span> <span class="n">help</span><span class="p">.</span><span class="n">what</span><span class="err">'</span><span class="n">s</span> <span class="n">the</span> <span class="n">meaning</span> <span class="k">of</span> <span class="ss">"SEL"</span><span class="o">?</span> </pre></div> <p>thanks very much.</p></div>