https://forge.codesys.com/forge/talk/CODESYS-V2/thread/fe128cb549/2020-02-27T21:40:16.903000ZRecent posts to VAR_OUTPUT2020-02-27T21:40:16.903000Z2020-02-27T21:40:16.903000ZJoan Mhttps://forge.codesys.com/u/joan-m/https://forge.codesys.com87adc9ddeccbce0d3d5f213426b9c2c036691b40

<div class="markdown_content"><p>You've answered yourself in the subject of your question...</p> <p>From the external part of the code you can write something like yourfunctionblockInstance.YourArray to access the array freely.</p> <p>If the array declaration is in the normal var or var_output areas you'll not be able to modify it from outside (which is always a good thing regarding design and peace of mind when you are programming).<br/> If you want to modify that array from outside you have to declare it in the VAR_INPUT area.</p> <p>Of course another approach would be using a pointer and pointer arithmetics to find the next positions of the array like you'd do in any high level language.</p> <p>Good luck!</p></div>

2020-02-27T21:40:15.396000Z2020-02-27T21:40:15.396000ZEagerhttps://forge.codesys.com/u/eager/https://forge.codesys.comcddb152a2d9a79d44cdcbd412cbdef828893b39b

<div class="markdown_content"><p>I made a FB type and do some calculation on some array inside the FB.<br/> I would like to expose this array to the "parent" POU.<br/> Currently the array is defined inside a VAR block (like MyArray:ARRAY<span>[0..99]</span> OF WORD)).<br/> Is it possible to make this variable visible from outside by some attribute or something similar?<br/> Alternatively, can a pointer to an array defined outside the FB be used instead of a local variable?</p></div>