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.
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.
- WinCC OA Configuration Files
  Several configuration files are used in a WinCC OA project. This chapter gives you a brief overview of the different configuration files.
- Manager options, basics
  An introduction to using the manager options available in WinCC OA.
- Internal data point types
  The overview of the internal data point types available in WinCC OA.
- Data point configs
- Data Types
  An overview of the data types available in WinCC OA.
- Driver Characteristics
  The driver characteristics overview tables.
- Drivers
- Driver Specific Functions
- Error Messages
  The overview of error messages available in WinCC OA.
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.

_auth

The authorizations for changing data point attributes are managed with the "_auth" config. See also chapter _auth (Authorization).


Attribute (neutral)	Type	Description
_type	char	Creates a config or you can delete a config by executing a dpSet with the value 0 on the _type attribute.
_read	int	With the attribute _read the current user can view a config. See also chapter _auth (Authorization).
_write	int	With the attribute _write the current user can change a config - see the example below. See also chapter _auth (Authorization).
_owner_read	int	With the attribute _owner_read a manager can view a config. See also chapter _auth (Authorization).
_owner_write	int	With the attribute _owner_write a manager can change a config. See also chapter _auth (Authorization).

Constants for the ".._type" attribute


CTRL constant	int value	Description
DPCONFIG_NONE	0	No authorization
DPCONFIG_AUTH	62	Authorization

Example

Adds an "_auth" config to the data point "TestDP_1". The _auth config specifies that the

authorization level 5 is required for changing the "_original" config :

main()
{
  dpSetWait("TestDP_1.element:_auth.._type",
  DPCONFIG_AUTH,
  "TestDP_1.element:_auth._original._write",5);
}

For more information on "_auth" config, see chapter _auth (Authorization).