There are actually just a lot of value changes between 9:00 and 9:04 that so from the mid 700s down to 0, but in a very short time period which is why it looks like it just drops from mid 700s down to 0. I will need to look at the history settings on some of these fast-changing tags to reduce the capture rate. But there are 0 data points between 9:04 and 14:07, but the function that retrieves the values is still interpolating between these two distance points which results in the long straight line from 0 to 307