## APM.SPC_CHART - APMonitor Option

## Main.OptionApmSpcChart History

Show minor edits - Show changes to markup

1=add 3 sigma limits 2=add 2 sigma limits 3=add 1 sigma limits

1=add +/- 3 set point limits (red lines) 2=add +/- 2 set point limits (yellow lines) 3=add +/- 1 set point limits (green lines)

(:title APM.SPC_CHART - APMonitor Option:) (:keywords APM.SPC_CHART, Optimization, Estimation, Option, Configure, Default, Description:) (:description Statistical Process Control (SPC) chart display option:)

Type: Integer, Input Default Value: 0 Description: Statistical Process Control chart 0=OFF 1=add 3 sigma limits 2=add 2 sigma limits 3=add 1 sigma limits

SPC_CHART is a web-interface trend option to create Statistical Process Control (SPC) style charts for Controlled Variables (CVs). When SPC_CHARTS=0, there are no additional limits placed on the trend. As SPC_CHARTS is increased by 1, there are additional ranges added to the CV plots. With a level of 1, new lines at +/- 3 SPHI-SPLO are added to the plot as red upper and lower control limits. With a level of 2, new lines at +/- 2 SPHI-SPLO are added to the plot as yellow upper and lower control limits. With a level of 1, new lines at +/- 1 SPHI-SPLO are added to the plot as green upper and lower control limits. Each level adds an additional two lines.