https://forge.codesys.com/forge/talk/CODESYS-V2/thread/b55411aa4c/2020-02-27T22:52:02.327000ZRecent posts to Calling FB Multiple Times2020-02-27T22:52:02.327000Z2020-02-27T22:52:02.327000ZRalph Holzhttps://forge.codesys.com/u/ralph-holz/https://forge.codesys.comacbb513cba5afd92f9038cbe30aff7153dddbad3

<div class="markdown_content"><p>The code inside the FB is execute 3 times in this case. But there is no general problem in doing this.</p> <p>Sometimes it is senseful to call the same instance twice during a PLC cycle. But mostly it is simply a fault of the programmer who didn't understand the idea of building instances.</p> <p>Regards</p> <p>Ralph</p></div>

2020-02-27T22:52:00.700000Z2020-02-27T22:52:00.700000Zndzied1https://forge.codesys.com/u/ndzied1/https://forge.codesys.comcaacb52a40d4982ac52525516e582294666d0c5e

<div class="markdown_content"><p>I am trying to help someone troubleshoot a system and noticed that they have the same instance of a function block called 3 times in a ladder diagram POU. </p> <p>Are their any inherent problems with doing this? I have always called a FB only once and changed the input variables as required to do what I needed. </p> <p>This is also in a POU with a pretty fast cyclic call rate.</p> <p>Thanks,</p></div>