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Process documentationSetting Up Statistical Process Control (SPC)

 

You use this process to set up SPC in order to perform SPC analysis of collected data (see Statistical Process Control (SPC)).

When you set up SPC, you decide the following:

  • What SPC chart types you want to see

  • What SPC chart templates you want to use

  • What labels you want to display for control chart axes

  • What specification and control limits you want to define for secondary charts

  • What axes labels for control charts you want to maintain

    Note Note

    Not all chart types require secondary specification and control limits

    End of the note.

  • What SPC message type you want to assign to SPC trend rules

  • When SPC analysis is performed and then displayed in the POD

Prerequisites

  • You have configured SAP MII SPC engine and charting.

    For more information, see Configuring the User Role for SAP ME SPC Charts in SAP ME Installation Guide and SPC Engine Extension.

  • Optional: You have created SPC chart templates in SAP MII Workbench.

Process

  1. In System Rule Maintenance, you verify that the Statit Server Host Computer Name rule is set to blank (see Miscellaneous Rules).

  2. In SPC Chart Maintenance, you define control charts that you use for SPC analysis (see SPC Chart Maintenance).

  3. In SPC Alarm Severity Maintenance, you assign an SPC message type to required SPC trend rules (see SPC Alarm Severity Maintenance).

  4. In Message Type Maintenance, you verify that the following SPC message types are not disabled:

    • SPC_ALARM_WARNING

    • SPC_ALARM_VIOLATION

  5. In Data Collection Maintenance, you complete fields on the SPC tab page of the Parameter Detail screen for required data parameters of the defined DC groups.

    For more information, see Data Collection Maintenance.

More Information

Setting Up Data Collection