SAP ABAP IMG Activity ISHT_MES_SPC_04 (Set Up Control Charts)
Hierarchy
☛ ECC-DIMP (Software Component) DIMP
   ⤷ IS-HT (Application Component) Industry Solution High Tech
     ⤷ OGDOC (Package) IS-HT Documentation
IMG Activity
ID ISHT_MES_SPC_04 Set Up Control Charts  
Transaction Code S_EGG_64000027   (empty) 
Created on 20000303    
Customizing Attributes ISHT_MES_SPC_04   Set Up Control Charts 
Customizing Activity ISHT_MES_SPC_04_SM34   Set Up Control Charts 
Document
Document Class SIMG   Hypertext: Object Class - Class to which a document belongs.
Document Name ISHT_MES_CNTRL_CHRTS    

In this step, you define the control chart types specific to IS-HT-MES functions. For each control chart type , you define the requirements based on the control indicators and sampling procedures used in the inspection characteristic. This is a two-step process.

In the first step you will define the following control chart types:

  • C10 C-chart for inspection points
  • P10 P-chart for inspection points
  • U10 U-chart
  • Y-20 Yield loss by equipment for insp. points

In a second step, you will define the control chart tracks. For each track, determine which control variable is used and how the warning limits or action limits are calculated.

Example

Requirements

Standard settings

A number of common control charts have already been defined in the standard system. Appropriate control indicators and parameters have been set for these control charts, so the system can calculate the control limits.

The table has the delivery class G. The following name range is reserved for the user:

Control chart type 9*, A*, ... , Z*

Define the control chart types as follows:

Control Chart Type C10

  • Name = c-chart for inspection points
  • Reference Axis = Time of inspection
  • Interval = 0
  • No. Range No. = 01
  • Characteristic Type
    • Multiple samples
  • Name of Module = /SAPHT/SPC_STANDARD_CHART_40

Control Chart Type P10

  • Name = p-chart for inspection points
  • Reference Axis = Time of inspection
  • Interval = 0
  • No. Range No. = 01
  • Characteristic Types
    • Multiple samples
    • Scp. not fixed
  • Name of Module = /SAPHT/SPC_VARYLIM_TRUNCATE_01

Control Chart Type U-10

  • Name = u-chart
  • Reference Axis = Time of inspection
  • Interval = 0
  • No. Range No. = 01
  • Characteristic Types
    • Multiple samples
    • Scp. not fixed
  • Name of Module = /SAPHT/SPC_VARYLIM_TRUNCATE_0

Control Chart Type Y20

  • Name = Yield loss by equipment for insp. points
  • Reference Axis = Time of inspection
  • Interval = 0
  • No. Range No. = 01
  • Characteristic Types
    • Confirm Values
    • Multiple samples
    • Scp. not fixed
  • Name of Module = /SAPHT/SPC_VARYLIM

Define the Control Chart Tracks as follows:

For Control Chart C10

  • Control Chart Track = 1
  • Title = Defects
  • Name of Module = /SAPHT/SPC_C_SHEWHART_40
  • Parameter 1 = 3.0000
  • Parameter 2 = 0.0000
  • Parameter 3 = 0.0000
  • Parameter 4 = 20.0000
  • Settings = no limits

For Control Chart P10

  • Control Chart Track = 1
  • Title = Fraction nonconforming
  • Name of Module = /SAPHT/SPC_P_CHART_VARYLIM
  • Parameter 1 = 3.0000
  • Parameter 2 = 0.0000
  • Parameter 3 = 0.0000
  • Parameter 4 = 20.0000
  • Settings = no limits

For Control Chart U10

  • Control Chart Track = 1
  • Title = Nonconformities per unit
  • Name of Module = /SAPHT/SPC_U_CHART_VARYLIM
  • Parameter 1 = 3.0000
  • Parameter 2 = 0.0000
  • Parameter 3 = 0.0000
  • Parameter 4 = 20.0000
  • Settings = no limits

For Control Chart Y20

  • Control Chart Track = 1
  • Title = Normalized yield loss
  • Name of Module = /SAPHT/SPC_YLD_LOSS_EQ_VARYLIM
  • Parameter 1 = 3.0000
  • Parameter 2 = 0.0000
  • Parameter 3 = 97.0000
  • Parameter 4 = 0.0000
  • Settings = no limits

Recommendation

Activities

  1. Create new control chart types.
  2. Define the control chart tracks for the control chart types.
  3. Save.

Further notes

The system can display examples of the control charts, so you can check the format in which they are displayed.

Business Attributes
ASAP Roadmap ID 203   Establish Master Data 
Mandatory / Optional 1   Mandatory activity 
Critical / Non-Critical 1   Critical 
Country-Dependency A   Valid for all countries 
Maintenance Objects
Maintenance object type C   Customizing Object 
Assigned objects
Customizing Object Object Type Transaction Code Sub-object Do not Summarize Skip Subset Dialog Box Description for multiple selections
V_QPSH_CL C - View cluster SM34  
History
Last changed by/on SAP  20000303 
SAP Release Created in