https://forge.codesys.com/forge/talk/CODESYS-V2/thread/8ad2735283/2020-02-27T23:11:29.692000ZRecent posts to global variable declaration2020-02-27T23:11:29.692000Z2020-02-27T23:11:29.692000Zshooterhttps://forge.codesys.com/u/shooter/https://forge.codesys.com0981a2f677ce82ad1a02f16a71c2f1988fc796b6

<div class="markdown_content"><p>a better solution is to use the following<br/> VAR_GLOBAL CONSTANT<br/> screen : INT := 4800;<br/> two:INT:=2;<br/> END_VAR</p> <p>and then use a calc in a initialise routine<br/> posoffset := screen*two;<br/> when the screen changes only one place needs changing.<br/> btw you have a variable when using visualisations.</p></div>

2020-02-27T23:11:28.070000Z2020-02-27T23:11:28.070000Zsingletonhttps://forge.codesys.com/u/singleton/https://forge.codesys.com085ba83fb1e22b2f84701ac6c62558fd62e7e019

<div class="markdown_content"><p>In V3.x this kind of declaration is possible.</p></div>

2020-02-27T23:11:26.417000Z2020-02-27T23:11:26.417000Zsarathbabuhttps://forge.codesys.com/u/sarathbabu/https://forge.codesys.com0ebcd5a09edf85bcdc64425c08c09b8eddbc430d

<div class="markdown_content"><p>Yes I tried and ended up with errors</p> <p>Thanks </p></div>

2020-02-27T23:11:21.829000Z2020-02-27T23:11:21.829000ZRolf-Geislerhttps://forge.codesys.com/u/rolf-geisler/https://forge.codesys.com1c765151d65f8d9807a013e02bcdb79151fe4c7c

<div class="markdown_content"><p>Hi,<br/> it is not.</p> <p>First of all you have to declare the data type:</p> <div class="codehilite"><pre><span></span><span class="n">VAR_GLOBAL</span> <span class="err"> </span> <span class="err"> </span> <span class="n">posoffset</span> <span class="p">:</span> <span class="nb">INT</span><span class="p">;</span> <span class="n">END_VAR</span> </pre></div> <p>Then you can add an initialization value</p> <div class="codehilite"><pre><span></span><span class="n">VAR_GLOBAL</span> <span class="err"> </span> <span class="err"> </span> <span class="n">posoffset</span> <span class="p">:</span> <span class="nb">INT</span> <span class="p">:</span><span class="o">=</span> <span class="mi">9600</span><span class="p">;</span> <span class="n">END_VAR</span> </pre></div> <p>I'm afraid, calculations are not possible in these declarations.</p></div>

2020-02-27T23:11:20.184000Z2020-02-27T23:11:20.184000Zsarathbabuhttps://forge.codesys.com/u/sarathbabu/https://forge.codesys.comc0dd1c8661feab885f2356c5b795de1ecd763486

<div class="markdown_content"><p>Hi is this declaration possible</p> <div class="codehilite"><pre><span></span> <span class="nt">var_global</span> <span class="nt">posoffset</span><span class="o">:=</span><span class="nt">4800</span><span class="o">*</span><span class="nt">2</span><span class="o">;</span> <span class="nt">end_var</span> </pre></div> </div>