Loop Summary Table is a new search tool in determining the best PID settings for loops that behave differently with varying conditions...
Loop Summary Table is a new search tool in determining the best PID settings for loops that behave differently with varying conditions. The table performs summaries of multiple tests and lists the tuning parameters, process model, model confidence, and relative response time for individual loop tests. In addition, it automatically highlights the most conservative and the average tuning values. The most conservative tuning values are useful in loops with varying conditions such as temperature loops that heat up quicker than they cool down. They may be the only tuning values that are stable.
The Loop Summary Table saves the process model, allowing the comparison between the current and previous process models. This added historical perspective aids in troubleshooting. The relative response time calculation is unique to ExperTune. Used to decouple interacting loops, it is a measure of the time the loop takes to correct a disturbance. Faster loops should be tuned to have an RRT at least 3 times smaller than slower loops.
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