https://forge.codesys.com/forge/talk/Engineering/thread/4e2d9845d1/2020-02-27T14:04:51.869000ZRecent posts to Use of counters in SFC2020-02-27T14:04:51.869000Z2020-02-27T14:04:51.869000Zwollviehhttps://forge.codesys.com/u/wollvieh/https://forge.codesys.comc897d3ea8154aa1da498d3c7b436261c88186895

<div class="markdown_content"><p>look at the small sample i made, maybe it is helpfull...</p> <p>Although usefull : search in CODESYS Documentation for SFC Flags...</p> <p><img alt="IMG: sfc.JPG" rel="nofollow" src="https://forum.codesys.com//download/file.php?id=2175"/></p> <p><img alt="IMG: sfcflags.JPG" rel="nofollow" src="https://forum.codesys.com//download/file.php?id=2176"/></p> <p><a class="" href="https://forum.codesys.com//download/file.php?id=2174" rel="nofollow">sfc.project <span><span>[103.84 KiB]</span></span></a></p></div>

2020-02-27T14:04:51.578000Z2020-02-27T14:04:51.578000ZTrompdelfthttps://forge.codesys.com/u/trompdelft/https://forge.codesys.come7a48561295acae38bd7fd87354fa0cb70f993df

<div class="markdown_content"><p>Thank you very much for your reply !</p> <p>What I want to do:</p> <p>Develop Codesys lessons (simulation with hardware) with PLC's for second year students at applied sciences level, mechanical engineering.</p> <p>A simple assignment with three pneumatic cylinders who move in a machine-simulating sequence, with some delay (timer) and some repetition (counter). That's all. (cylinders move in and out, and sensors detect start and end positioning)</p> <p>I am relatively new (just work for about a year with Codesys) and work with SFC, which I understand now more or less.</p> <p>Can you specify the sentence "do something" ? could that be a SFC transition, for instance cilinder B is 'in' and sensor b0 is active.</p> <p>And how to reset the counter ?</p> <p><img alt="IMG: CDS.JPG" rel="nofollow" src="https://forum.codesys.com//download/file.php?id=2173"/></p></div>

2020-02-27T14:04:50.713000Z2020-02-27T14:04:50.713000Zwollviehhttps://forge.codesys.com/u/wollvieh/https://forge.codesys.com107a781753a55c53ebe7cffb7be66cadef3c0dba

<div class="markdown_content"><p>hey,<br/> what is the problem ?<br/> can you tell , what you really want do to ?</p> <p>Example :</p> <p>var<br/> counter : DINT;<br/> endvar</p> <p>IF (xxx = true)<br/> THEN<br/> counter := counter + 1;<br/> END_IF</p> <p>IF (counter &gt; 3)<br/> THEN<br/> ;(<em> do something </em>)<br/> ELSE<br/> ;(<em> do another thing </em>)<br/> END_IF</p></div>

2020-02-27T14:04:50.411000Z2020-02-27T14:04:50.411000ZTrompdelfthttps://forge.codesys.com/u/trompdelft/https://forge.codesys.com9109b1cf7a8a9cb495d18a45c5caa3917ee22a45

<div class="markdown_content"><p>I am looking for simple examples for using counters in SFC. Is there anyone who can help me<br/> I just tried to introduce counters with structured text but it doesn't work. I can use function blocks but there should be a more simple way. It is very hard to find examples.</p></div>