Posted 13 Jun 2017 I current have 2 variable: Displacement vs Pressure. I need to draw a real time graph on Comfort Panel. The problem with using just f(x) trend is that the minimum time between updating a point is 0.5 sec and that is for ever in my application as the whole cycle last only 5 sec and I have to plot 500 points in that time. Is there a way to do real time graph using Historical data without any time delay. If anybody can guide me through any sample program or material would e helpful. Thanks Share this post Link to post Share on other sites
Posted 15 Jun 2017 I would use the PLC memory to store your samples since you want a resolution ten times better than the update rate between the panel and PLC. Use a time delayed interrupt to store your samples. Share this post Link to post Share on other sites
Posted 15 Jun 2017 Thanks for the reply. Now storing the sample is not a problem. I can store all the values I get in my auto cycle time inside the PLC. But when it comes to drawing a X vs Y trend on screen there is where the issue is. I cannot draw in Real time so is there a way I can draw from an Array instead of just a variable. Share this post Link to post Share on other sites
Posted 16 Jun 2017 I'm not sure, but it might be possible to use the "f(x) trend view". Share this post Link to post Share on other sites