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System Management
The System Management is the central administrative unit for WinCC OA Systems.
Database
NextGen Archiver (NGA)
The NextGenArchive (NGA) for is a archiving solution which extends flexibility while keeping the possibilities and strengths of the current methods. This chapter provides an overview of the NGA feature.
Configuration
Backend
Extended Settings
Memory Buffering

System Management
The System Management is the central administrative unit for WinCC OA Systems.
- System management
- Diagnostics
- Reports
- Database
  - Data backup in WinCC OA
  - Supported Database Combinations
    An overview over the possible database combinations within a WinCC OA project.
  - WCCOAtoolCreateDb
  - Upgrading a project using ISO character sets to UTF8 character sets
  - History DB
  - Archive/Export Alerts
  - ASCII Manager
    The ASCII Manager allows you to input and output and thus edit data points and data point types and to configure data points.
  - Online Backup
  - Steps of the online DB backup process
  - Archiving and Compression
  - Data Point Groups
    The main purpose of grouping data points is to simplify selection of datapoints and datapoint elements.
  - PowerConfig Editor
  - RDB Archiving
  - RDB Compression
  - RDB Log
  - HDB/RAIMA - RDB Parallel
  - OLE DB Provider
    OLE DB is a Microsoft specification for accessing data on different computers. It is based on Microsoft's COM technology and is the successor to the older and limited ODBC technology.
  - NextGen Archiver (NGA)
    The NextGenArchive (NGA) for is a archiving solution which extends flexibility while keeping the possibilities and strengths of the current methods. This chapter provides an overview of the NGA feature.
    - General Terms and User Model
    - Requirements and Installation
    - Licensing
      This chapter describes the NGA license options and available package sizes.
    - Deployment Scenarios
    - Configuration
    - InfluxDB®
    - PostgreSQL® Database Overview
    - MS SQL®
    - Redundancy
    - Using a Remote Backend with Encryption
    - Notes and Restrictions
    - Internal Data Points
    - Database Maintenance
      Overview of the database maintenance chapters for the NGA backends.
    - Debug Flags
    - CTRL Functions for NGA Access
    - HDB/RAIMA Migration
    - NGA Importer
    - NextGen Archiver (NGA) - FAQ
  - SQLite®
- Driver
- Driver IEC
- Driver OPC
- Driver S7
- SmartSCADA
- Permission
- Communication
- Settings

Memory Buffering

Values per Block OR ms: Defines parameters when a block is sent to the backend. In order to increase performance, data (alarms and events) is sent in “chunks”. The decision when a chunk is sent to the backend can depend on its size (Values per block). Meaning when the here specified number of events or alerts are stored in a block, it is sent to the backend. In addition also a timeout ("ms") can be defined. The "ms" sets the maximum time a buffer is not sent. After that time interval (starting with the creation of a new buffer) the buffer is sent to the backend independent of the number of events or alarms stored in it.