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System Management
The System Management is the central administrative unit for WinCC OA Systems.
Reports
Correction Values and Laboratory Values
These panels can be used to change existing values (=correct), query values from and add new values too the HistoryDB and RDB.
Summary and other relevant chapters

System Management
The System Management is the central administrative unit for WinCC OA Systems.
- System management
- Diagnostics
- Reports
  - Variable Trend
    A set of panels and scripts used for the simplified display of trend curves and trend groups (up to 16 trend curves).
  - Correction Values and Laboratory Values
    These panels can be used to change existing values (=correct), query values from and add new values too the HistoryDB and RDB.
  - Service protocol
  - WinCC OA Excel Report
    With the WinCC OA Excel Report reports can be created. Templates are used for reports. If a report should be created for a specific time, the system uses the templates and automatically fills the template with data from the process database. Reports can also be created, printed and saved time-controlled without user access. For more information, see chapter Excelreport/topics/excel_report_basics.html.
  - SQL in CONTROL
    The database functions enable you to quickly carry out value queries on data points and elements.
  - Data Point Element Monitor
- Database
- Driver
- Driver IEC
- Driver OPC
- Driver S7
- SmartSCADA
- Permission
- Communication
- Settings

Summary and other relevant chapters

This chapter provides information about:

The layout of the panels for correction and laboratory values.
How to retrieve your data.
How to correct your data.
How to enter data in the database by hand.

The following table lists chapters that deal with related information:


Chapter	Content
History DB	Data storing with the History DB
Archiving/Compression	Describes archiving and compression
Variable trend	Displaying measured data