SPC Process Capability and Performance Chart - Perspective

An SPC process performance chart represents the ability of a process to meet the specifications (what is intended to be made). It is used in SPC data analysis by measuring indexes that compare the spread (variability) and centering of the process to the upper and lower specifications.

The scroll lock feature operates in two distinct modes, each with specific UI indicators and behavioral responses to new data.

This feature is available in versions: MES 3.81.11 SP7 and later MES 4.83.0 RC2 and later

SPC Perspective Chart Dataset Properties 

These properties are available in the Ignition Properties Palette for SPC Charts.

Property Source	propertySource	Sets the datasource mode. Toggle two options: Use_stored_settings | Use_binding Included in Sepasoft Versions: MES 3.81.7 RC1 and later Use_stored_settings: Sets the chart to receive data from Stored Settings. To use this, enter property values under storedSettings, see below. Use_binding: Sets the chart to receive data from an SPC Controller. To use this, bind to an SPC Controller under spcChartSettings, see below. When clicking the binding icon on the left side of the propertySource, the Configure Property Binding dialog appears.
Stored Settings	storedSettings	Set property values here when propertySource is set to Use_stored_settings
		Property Name Data Type Property Value Description storedSPCName String Required when propertySource = 'Use_stored_settings': Sets name of the Stored SPC Setting. The name must match exactly to the name you enter in Stored SPC Selector. Stored SPC Selector component only offered in VISION. See Stored SPC Selector | Vision location String Optional: Filter on a Location that is defined in Equipment Manager. Enter the Equipment Path to the Location. startDate Date Required: Sets start date to filter SPC data on Bind to form fields on the view to make dates selectable in runtime. Required: Sets end date to filter SPC filter on endDate Date autoRefresh Boolean True/False Required: True, refreshes data when sample or definition information changes. Set to True to use real-time data.
SPC Chart Settings		spcChartSettings Set property values here when propertySource is set to Use_Binding Bind to the SPC Controller
		Property Name Data Type Information storedSPCName String Incoming property value from the SPC Controller > Stored Setting. startDate Date Sets start date to start filtering data on  endDate Date Sets end date to filter data on autoUpdate Boolean Required True/False: True, updates data when a sample is taken. Use for realtime data. autoRefresh Boolean Required True/False: True, refreshes data when sample or definition information changes. Use for realtime data.
		settings additionalFactors:  String - Additional factors to include in the SPC chart. attributeName:  String - Name of the sample attribute attributeUnits:  String - Adds a label for the unit of measure for the sample boxAndWhiskerFilter Chart Specific String - Box and whisker filter items to filter on. controlLimits:  String - Summarizes control limits to add to the chart definitionName:  String - Name of the sample definition. filters:  String -  location: The Location Path defined in the Equipment Manager to filter on. factors: Properties >Additional Factor  Filter on existing additional factors measurement:  String - Measure number to filter on nonconformingFilter Chart Specific String - Nonconforming items to filters on nonconformityFilter Chart Specific  String - Nonconformity items to filters on paretoFilter Chart Specific String -  Items to include in a Pareto chart. rowLimit:   String - The maximum number of samples to return in the results. signals String - Summarizes your signal selections in a string. spcDataFormat:   String -  SPC Data Each chart type has specific settings. Select the correct chart from the dropdown menu. useDefaultChartType:  String - If true, uses the default chart type from the attribute definition. useDefaultChartType:  String - If true, uses the default chart type . enableFutureLimitEditing: String -If true, you can set limits for future (non-existing) samples.
		histogram autoBarCount: Boolean - If true, the number of data bars that are displayed is calculated automatically. dataBarCount int - The number of data bars to display when autoBarCount is False. paddingBarCount int - The number of bars prior to and following the data bars to include in the histogram results.
		dynamic When using an SPC Controller to populate a Perspective SPC Chart, these dynamic filters can be used to filter the data for display in a chart. factor  String - Additional factors that were recorded along with the sample. location String - The location path where the samples were collected. productCode String - Samples returned should have this Product Code if present. referenceNo String - Samples returned should have this Reference Number if present. sampleApprovedBy String - The username of the user that approved the samples. sampleTakenBy String - The username of the user that recorded the samples. shift   String - A schedule shift during which the samples were taken.
		spcResults SPC Results including data, measurement count, messages and calculated value information. definitionUUI calcValueList defaultChart measureFormat unit measurementCount messages errormessage warningMessage spcData: dataset - The SPC data.
showTable	Boolean	Enable to display the data table. The table is updated as new data comes in. Table Chart Scroll Locking The table chart scroll locking feature provides a user-controlled mechanism to either automatically navigate to the most recent data upon its arrival or maintain the current scroll position. The scroll lock feature operates in two distinct modes, each with specific UI indicators and behavioral responses to new data. This feature is available in versions: MES 3.81.11 SP7 and later MES 4.83.0 RC2 and later State Detailed Description Locked UI: The lock icon in the taskbar appears closed and filled. Behavior: The chart view is locked to the right, automatically jumping to the end of the table whenever new data is received. Tooltip: Hovering over the icon displays the text: "Allow Free Scrolling". Free Scrolling UI: The lock icon in the taskbar appears open and unfilled. Behavior: The chart maintains its current scroll position, even when new data is received. Tooltip: Hovering over the icon displays the text: "Lock Scrolling".

Component Properties Specific to Process Capability and Performance Chart

Properties are provided that can be set to affect the operation and look of the component. They can be set through the Property Editor in the Designer or through scripting.

Meta Properties in the Perspective Property Editor

Event Handlers

Event handlers provide the ability to add custom script when a user interacts with a component such as by clicking a mouse, selecting a menu item or when a component property changes.

mouse

mouseMotion

propertyChange

Component Functions

Example of the component on the page root container:

event.source.parent.getComponent('Box and Whisker Chart').showSetLimitPanel (True).

showSetLimitPanel

Custom Methods

Custom methods allow you to add your own component functions to a component that can be called through scripting. This is a useful and clean method of re-using script that is specific to the component (say you want to update a visual aspect of the component in the same way whether a user clicks on the component or a window property value changes). See  Component Custom Methods  in the Ignition Help Manual for more information.