https://forge.codesys.com/forge/talk/CODESYS-V2/thread/2244ad8757/2020-02-27T19:56:36.698000ZRecent posts to Convert TIME to REAL2020-02-27T19:56:36.698000Z2020-02-27T19:56:36.698000ZKimhttps://forge.codesys.com/u/kim/https://forge.codesys.com8bd9b55125b3718ae8b067adf9792bcd0a7de2c5

<div class="markdown_content"><p>You can make use of the SysTime library, get the starting time in st1 and the stop time in st2, then calculate the elapsed time inbetween. It can be within a cycle or several cycles later, it doesn't matter.</p> <div class="codehilite"><pre><span></span><span class="nt">VAR</span> <span class="err"> </span> <span class="err"> </span> <span class="nt">st1</span><span class="o">,</span> <span class="nt">st2</span><span class="o">:</span> <span class="nt">SysTime</span><span class="o">;</span> <span class="err"> </span> <span class="err"> </span> <span class="nt">diElapsedTimeUs</span><span class="o">:</span> <span class="nt">DINT</span><span class="o">;</span> <span class="nt">END_VAR</span> </pre></div> <div class="codehilite"><pre><span></span><span class="o">//</span><span class="nv">Get</span> <span class="nv">starting</span> <span class="nv">time</span> <span class="ss">(</span><span class="nv">in</span> <span class="nv">us</span><span class="ss">)</span> <span class="nv">SysTimeGetUs</span><span class="ss">(</span><span class="nv">pUsTime</span>:<span class="o">=</span><span class="nv">st1</span><span class="ss">)</span><span class="c1">;</span> <span class="o">//</span><span class="k">Do</span> <span class="nv">something</span> <span class="o">//</span><span class="nv">Get</span> <span class="nv">stop</span> <span class="nv">time</span> <span class="ss">(</span><span class="nv">in</span> <span class="nv">us</span><span class="ss">)</span> <span class="nv">SysTimeGetUs</span><span class="ss">(</span><span class="nv">pUsTime</span>:<span class="o">=</span><span class="nv">st2</span><span class="ss">)</span><span class="c1">;</span> <span class="o">//</span><span class="nv">Calculate</span> <span class="nv">elapsed</span> <span class="nv">time</span> <span class="ss">(</span><span class="nv">in</span> <span class="nv">us</span><span class="ss">)</span> <span class="nv">diElapsedTimeUs</span>:<span class="o">=</span><span class="nv">ANY_TO_DINT</span><span class="ss">(</span><span class="nv">st2</span><span class="o">-</span><span class="nv">st1</span><span class="ss">)</span><span class="c1">;</span> </pre></div> </div>

2020-02-27T19:56:33.060000Z2020-02-27T19:56:33.060000Zshooterhttps://forge.codesys.com/u/shooter/https://forge.codesys.com0452213318d24fd999909248defcf73ff409de95

<div class="markdown_content"><p>because the scantime is a problem, check if you can get the needed precision.<br/> maybe you need the clocktime to get enough accuracy of the step.</p> <p>another way to get correct results, is by adding the step/time in a way like an x/y line can be computed.</p></div>

2020-02-27T19:56:31.760000Z2020-02-27T19:56:31.760000ZfrankiPLhttps://forge.codesys.com/u/frankipl/https://forge.codesys.com326e69c4922ffb5823abca3d498bad887a6bfd6f

<div class="markdown_content"><p>Sorry newbie question <br/> Conversion Operator TIME_TO_REAL</p> <p>Best Regards<br/> Marek</p></div>

2020-02-27T19:56:30.444000Z2020-02-27T19:56:30.444000ZfrankiPLhttps://forge.codesys.com/u/frankipl/https://forge.codesys.com63e624d976ad1099aae6baa8af3701ad0dacc114

<div class="markdown_content"><p>Hi,</p> <p>I need to calculate step value for some time period like this:<br/> bStep=(targetLevel-currentLevel)/(timePeriod/t#10ms)</p> <p>targetLevel,currLevel,bStep - REAL<br/> timePeriod - TIME</p> <p>my TON1 has PT:=t#10ms and when TON1.Q I need to add bStep to bValue</p> <p>Now I have Type mismatch in division so I think I need to convert TIME to REAL, or TIME to INT and INT to REAL<br/> Is it possible?</p> <p>Best Regards<br/> Marek</p></div>