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Availability
How to get your system uptime to the maximum.
System Dashboard
The System Dashboard in WinCC OA provides a central overview of system status, performance metrics, and security aspects. It helps operators and administrators quickly view and assess important information.
System Dashboard KPIs
Discover the key performance indicators (KPIs) shown on the System Dashboard and their impact on system monitoring.
Performance KPIs
The Performance section of the System Dashboard monitors crucial runtime indicators—including CPU load, memory, disk usage, process activity, and alerts—providing instant diagnostics for your WinCC OA system.

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.
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.
- Disaster Recovery System
- Redundancy
  The high availability requirements of plant constructors and operators as well as the process and data security can be covered with the redundancy concept of WinCC OA.
- Redundant network connections
  In order to achieve a better fault tolerance WinCC OA Managers can connect to other WinCC OA Managers running on different computers via redundant network connections (this means connecting through two network connections (= IP connection)).
- Alive mechanism of manager connections
  The alive mechanism in WinCC OA serves for connection controlling between the single managers. Each manager sends alive messages at definable intervals.
- Error tolerance and stability
  Continuous improvements are made concerning the error tolerance and reliability. This page gives an overview and description of the changes. Additional information can be found in the further chapters of the documentation.
- Kubernetes Health Check
  An introduction to health checks with Kubernetes for WinCC OA.
- Message Compression
  The message compression compresses WinCC OA messages. Data compression means encoding information using fewer bits than an unencoded representation would use through use of specific encoding schemes.
- Identification Caching
  The identification caching provides you an advantage especially when using remote user interfaces and distributed systems. Identification caching allows the identification to be sent as “delta” instead of the whole identification. Thus, only the changes are sent by the Data and the Dist managers.
- System Dashboard
  The System Dashboard in WinCC OA provides a central overview of system status, performance metrics, and security aspects. It helps operators and administrators quickly view and assess important information.
  - System Dashboard Access and Configuration
    Access the System Dashboard directly from the Diagnostics area of System Management, and learn how to configure and customize it for your operational needs.
  - System Dashboard KPIs
    Discover the key performance indicators (KPIs) shown on the System Dashboard and their impact on system monitoring.
    - Server KPIs
      The Server section of the System Dashboard provides all key operational and hardware information about the current server instance. This enables efficient monitoring, troubleshooting, and documentation.
    - Performance KPIs
      The Performance section of the System Dashboard monitors crucial runtime indicators—including CPU load, memory, disk usage, process activity, and alerts—providing instant diagnostics for your WinCC OA system.
    - Connections KPIs
      The Connections section in the System Dashboard provides a comprehensive overview of the connectivity status to backends, field-side (“southbound”) systems, and the currently active UIs within a WinCC OA project.
    - Project KPIs
      The Project section in the System Dashboard gives a comprehensive overview of all central project properties—including type, version, error state, managers, event information, and the underlying data model structure—allowing efficient system assessment and troubleshooting.
    - Security KPIs
      The Security section in the System Dashboard offers a central overview of all relevant aspects regarding user access, authentication, certificates, events, and vulnerability management within WinCC OA projects.
    - License KPIs
      The License section in the System Dashboard summarizes all relevant information regarding system license status, contract period, and license container details for WinCC OA projects.
- NGA - High Availability Configuration (HAC)
  This chapter provides an overview of the High Availability Configuration for redundant or non-redundant WinCC OA projects (High Availability Configuration - HAC) and explains the roles of the components etcd and Patroni, which are required to set up HAC.
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.

Performance KPIs

The Performance section of the System Dashboard monitors crucial runtime indicators—including CPU load, memory, disk usage, process activity, and alerts—providing instant diagnostics for your WinCC OA system.

Overview: Performance Widget

The Performance widget provides a real-time overview of resource consumption, bottlenecks, and utilization for the selected system and project instance. It visualizes key aspects such as alert status, CPU and memory use, storage occupancy, and running process health.

Detailed Performance KPIs

Alert Count

Reflects the current number of outstanding performance or system alerts. A count of 0 means there are no active warnings in this category, indicating a healthy system state. If the value is greater than zero, immediate attention to alerts is recommended.

CPU Load

Displays the overall processor load divided into three categories:

OA: The proportion of CPU resources used by WinCC OA processes.
Others: The CPU usage by other services or user applications running on the server.
Idle: The percentage of CPU not currently in use, representing available processing capacity.

Note:

This indicator represents the load across all CPU cores (total CPU load).

Memory

Shows current RAM usage in relation to total available memory, for example 6.14 / 9.25 GB in use. The color/status indicator signals whether memory usage is within safe operational thresholds. Continuous high memory consumption may point to resource leaks or oversized applications and should be monitored.

Disk Space

Indicates the storage capacity in use versus the total available, such as 40.47 / 79.4 GB. Reliable disk capacity is vital for logging, database operations, and system performance. Low available space should be addressed proactively to prevent system interruptions.

Running Processes

Lists all active system and application processes directly related to WinCC OA. Each entry includes information such as process name, process ID, parent process, start time, CPU and memory usage, and the launch command. This detailed view is valuable for identifying problematic processes, resource hogs, or abnormal activity.

Note:

The value shown for CPU load per process (CpuLoad) always refers to a single core. If a process displays 100%, only one core is fully utilized by this process—not the entire CPU.