mburtis (Customer) asked a question.
Auto ranging analogue indicators and line trends
I'm really new to the c-more software and hmi programming in general. I'm building a couple of screens and I'm wondering if there is a way to make line trends automatically scale or change scales depending on triggers. Guess I could just stack trends on top of each other and have the visibility triggered?
Hi @mburtis (Customer),
I would use a 0 -100% scale if this needs to be variable. Stacking the line trend lines or just using another page with the different scales is a good workaround.
https://accautomation.ca/c-more-ea9-hmi-series-panel-data-logging/
Regards,
Garry
https://accautomation.ca/series/c-more-hmi-series-panel/
Maybe multiple trends and managing the visibility is the best then. This is for a surface water treatment plant. We have a value that typically is around .03, however can go up to .15 and still be in compliance. The meters in the field are calibrated 0 to 2 though and if the value goes out of compliance it's desirable to see the whole range. Just 2 trends one scaled 0 to .15 and one scaled 0 to 2 that have the visibility toggled based on the value seems easy enough to do.