SPC data in report

Ignition
1

Hi,

I’m trying to figure out how to use report parameters (Setpoint tags) to make a Cp calculation. I have the std deviation between a start point and end point, now I would like to use a formula, lets say (HiSP - LoSP) / (6 * stdDev) for the run.
Is there a good way to do this inside the report designer? Could I display those values on something like a spider plot? Even another column in my tag_calc table would be good enough. If some one has an idea, please do tell. Ignition 7.9.1.

2

You can perform math operations on report parameters inside of any text box, including table fields. Assuming that all of those parameters are defined, you can do something like @(HiSP - LoSP) / (6 * stdDev)@ in order to show that calculated value.