https://forge.codesys.com/forge/talk/Engineering/thread/9445548e04/2021-01-06T15:32:45.022000ZRecent posts to Mapping IO2021-01-06T15:32:45.022000Z2021-01-06T15:32:45.022000ZMorberishttps://forge.codesys.com/u/morberis/https://forge.codesys.com3fd728b24a400cefc647d703f24d00f97b9c9ef0

<div class="markdown_content"><p>I use seperate global variable lists for inputs, outputs, and fieldbus. I also use of my own naming conventions in addition to using x or w as a prefix to indicate boolean or word.</p></div>

2021-01-06T14:59:17.386000Z2021-01-06T14:59:17.386000Zyannickasselinhttps://forge.codesys.com/u/yannickasselin/https://forge.codesys.comb49699a278026a3832ba58b9745c348bdc4326bc

<div class="markdown_content"><p>Hello,</p> <p>I am very used to mapping IOs in TwinCAT where you need to declare your variables with AT%I<em> and AT%Q</em>. In Codesys, you can map a physical IO to any variable, but is there a way to declare variable that are expected to be mapped to IOs so that I could filter them out in the mapping dialog?</p> <p>Or maybe I should just use some kind of naming convention for those variables like: IN_myInput and OUT_myOutput.</p> <p>I would like to know how others are mapping IOs to variables.</p> <p>Thank you.</p></div>