https://forge.codesys.com/forge/talk/Engineering/thread/cb4ac9b221/2020-02-27T13:47:59.456000ZRecent posts to Histirical Trends2020-02-27T13:47:59.456000Z2020-02-27T13:47:59.456000Ztimvhhttps://forge.codesys.com/u/timvh/https://forge.codesys.com02254da15024389ebb40b5d20e7bd24fdba3cf25

<div class="markdown_content"><p>In V3.5 SP5 the (historical) Trend is added as additional visualization object.<br/> This is what you need and not the Trace.</p> <p>Probably you are using an older CODESYS version.</p> <p>The Trend can store data in sqlite files and retrieve it. Please check if your device supports this functionality.</p></div>

2020-02-27T13:47:59.405000Z2020-02-27T13:47:59.405000Zninandersonhttps://forge.codesys.com/u/ninanderson/https://forge.codesys.com2133d924e7fa02019750685b0698b1a19864846e

<div class="markdown_content"><p>Hello,</p> <p>I need to include a temperature trend recorder visualisation into my CoDeSys 3 project for display on a 15" touch screen HMI. The trend needs to be able to show the temperature at any time in the last 3 days. </p> <p>The following standard basic features are needed:</p> <p>The sample time for the temperature must be once every 15 seconds<br/> The displayed trend length must be operator adjustable from 1Hr to 3 days.<br/> The sample time and date must displayed along the x axis<br/> The operator must be able to scroll the x axis within the available data.</p> <p>I assumed that 'Trace' would do all this but I am unable to find any way to implement these features that are normally included as standard on other HMIs.</p> <p>Any advise would be gratefully received</p></div>