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Engineering
Powerful tools for easy or complex engineering tasks.
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.
InfluxDB®
Troubleshooting InfluxDB®
Delayed InfluxDB® Server Initialization
If the InfluxDB® server's initialization is delayed, hindering its connection to the NGA, examining database logs can provide valuable insights.

Version Information
Release Notes, Update information, Certifications and Frequently Asked Questions.
Concepts
Your first step into modern and powerful process visualization.
Deployment
Topics you need to know before using WinCC OA.
Security
Go beyond the norm in cybersecurity.
Engineering
Powerful tools for easy or complex engineering tasks.
- Project Administration
  The chapter contains a description of the process monitor as well as the project administration.
- Graphics Editor (GEDI)
  Used for creating and editing panels, provides tools for creating and configuring graphic objects.
- 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
    - Estimation of the hard disk space
    - Update an ISO Project to SQLite Project
    - History DB
    - Archive/Export Alerts
    - ASCII Manager
      The ASCII Manager allows you to input and output and thus edit datapoints and data point types and to configure datapoints.
    - Archiving and Compression
    - Datapoint Groups
      The main purpose of grouping datapoints 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®
        DB Installation
        DB Installation - InfluxDB® on a remote system
        Encrypted Communication between Backend and InfluxDB®
        Enabling Logging of InfluxDB®
        Configuration - WinCC OA server - Remote InfluxDB®database and remote backend - Remote UI
        InfluxDB® Schema
        InfluxDB® File / Directory Structure
        InfluxDB® Database Logs
        This chapter provides general guidance and tips on how to find and interpret InfluxDB® logs, should you encounter any issues.
        Troubleshooting InfluxDB®
        File Handle Error "Too many open files"
        Delayed InfluxDB® Server Initialization
        If the InfluxDB® server's initialization is delayed, hindering its connection to the NGA, examining database logs can provide valuable insights.
      - PostgreSQL® Database Overview
      - MS SQL®
      - Redundancy
      - Using a Remote Backend with Encryption
      - Internal Datapoints
      - Database Maintenance
        Overview of the database maintenance chapters for the NGA backends.
      - Estimation of the hard disk space
      - Debug Flags
      - CTRL Functions for NGA Access
      - HDB/RAIMA Migration
      - NGA Importer
      - NGA Backend API
      - NextGen Archiver (NGA) - FAQ
      - Notes and Restrictions
    - SQLite®
  - Driver
  - Driver IEC
  - Driver OPC
  - Driver S7
  - SmartSCADA
  - Permission
  - Communication
  - Settings
- Wizard Framework
  Used for easy creation of wizards in a uniform layout style. The key elements "Navigation Bar" and "Bottom Bar" can be customized to fit the needs of the custom wizard.
- XML Panel Format
  The XML (Extensible Markup Language) panel format allows creating WinCC OA panels.
- Simple Symbols, basics
  The "Simple Symbols" functionality is used to simply assign corresponding symbols to datapoint types and increase the working comfort when working with different symbols.
- ScriptWizard
  Simple wizard for creating graphical user interfaces for users without prior programming knowledge.
- Panel topology/Group alert facility
  Tree structure for process panels with integrated group alert system
- Object-Oriented Panel References
  Reusable objects built with the GEDI tools. Insert them within an existing panel to provide a graphical element.
- Multilingual Projects
  WinCC OA is designed to provide both Native Language Support and Multi Language Support.
- Translator
  The WinCC OA Translator functionality supports you in creating and maintaining multilingual projects. It offers a convenient interface for translation of reusable terms.
- Layout management
  Layouts change the size and position of objects according to parameters previously defined in the GEDI.
- Generic Dialog Framework
  The Generic Dialog Framework is an easy way to generate your own dialogs by adjusting a set of prefabricated panels.
- Simple Configuration
  Simple configuration windows and panels support you in combining events (such as a mouse click) with different actions such as setting datapoint values, showing panels or changing attributes.
Data Management
Classify, structure and archive your data.
Business Logic / Control
Endless possibilities in data processing for your projects.
Data Visualization
User interfaces, Trends and Reports for every purpose and device.
Southbound Interfaces
The process connection to the actual machines/sensors.
Northbound Interfaces
Your portal to the cloud or supervising systems.
Web Connectivity / Network Interfaces
Data exchange, APIs and web technologies
User Management
All about authorization, authentication and login-customization.
Availability
How to get your system uptime to the maximum.
Reporting
Create state of the art project reports without limits.
Addons
Useful tools and enhancements for special demands.
Reference Tables
Detailed and extensive content for special project adaptation.
Videos & Tutorials
Explore the capabilities of WinCC OA with our carefully selected collection of video tutorials and guides.
Documentation
Basic information about terms and functions within the documentation.
Support & Services
An experienced team of support agents, consultants and trainers are ready to facilitate active partnerships with our customers, so they can profit from our comprehensive service.
Disclaimer
A brief clarification of liability exclusions or legal notices.

Delayed InfluxDB® Server Initialization

If the InfluxDB® server's initialization is delayed, hindering its connection to the NGA, examining database logs can provide valuable insights.

For detailed instructions on how to access and interpret these logs, please refer to the chapter InfluxDB® Database Logs. Consider also the config entry when you must deal with longer database startup times.

Factors influencing server startup duration

Table 1.
Factors influencing server startup duration	Description
Number of shards and amount of data	This is represented in NGA by group segments. The shards are scanned during startup. The more segments and data they contain, the longer it takes to start the database.
High cardinality	Cardinality is defined as the number of unique series in your database. A unique series is a combination of the measurement and tag values. In NGA, this is proportional to the number of archive configs (and the number of NGA groups assigned to each archive config). Both performance and startup times deteriorate as cardinality increases.
Hardware resources	The hard disk I/O bandwidth and the amount of available RAM have a major impact on server startup times. We recommend ensuring that good SSDs are used and that sufficient memory is available. The use of these resources must be monitored during database startup. Also, ensure that no other application running on the server machine is consuming too many hardware resources.