https://forge.codesys.com/forge/talk/Engineering/thread/1d965f3ca6/2020-02-27T13:48:29.573000ZRecent posts to Program structure2020-02-27T13:48:29.573000Z2020-02-27T13:48:29.573000ZRolandWagnerhttps://forge.codesys.com/u/rowa/https://forge.codesys.com2a4bd4e06c78ee5787085b09e13d4f172cb0ee22

<div class="markdown_content"><p>Hi,</p> <p>as defined in the IEC 61131-3 the complete machine application can be realized with different objects, which the IEC 61131-3 calls 'POUs'.<br/> Such a POU may be a PROGRAM (which contains code and data variables), FUNCTION_BLOCK (which contains code and a data structure, which can allocate data sets by means of instances) or FUNCTION (code but only temporary Memory, the FUNCTION itself is the return variable for the executed code).<br/> So you can structure your application by using these three POU types. Each has its advantages and typical use cases.</p> <p>You can call almost every POU by another POU. How to do so is depending on the programming language (the editor) out of which you want to call the POU.</p> <p>Get an example e.g. out of the CODESYS Store - there you will see how others did it .</p> <p>I hope this will help you further.</p></div>

2020-02-27T13:48:29.459000Z2020-02-27T13:48:29.459000ZAnonymoushttps://forge.codesys.com/u/*anonymous/https://forge.codesys.com4f1ea1abf686130808d882f40d5b8a483d88c3a2

<div class="markdown_content"><p><em>Originally created by:</em> ph0010421</p> <p>Hello<br/> Just after some advice. I'm new to Codesys. Although I find it very similar to other 61131 platforms I've used, one big difference is the inability to add 'Sections' under 'Programs'</p> <p>I can break a machine down, and have a 'Program' for each part. What is the POU/object/whatever to sub-divide a program?</p> <p>Thanks</p></div>