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Concepts
Your first step into modern and powerful process visualization.
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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
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Reporting
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Addons
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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.
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Documentation
Basic information about terms and functions within the documentation.
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Disclaimer
A brief clarification of liability exclusions or legal notices.

_archive


Attribute (neutral)	Type	Description
_archive	bool	Should variable in the archive be saved
_class	dpid	References of the archive class
_round_inv	bool	Should rounding value be inverted
_round_val	int	Rounding value
_std_time	time	Time interval of the standard smoothing procedure
_std_tol	float	Tolerance value of the standard smoothing procedure
_std_type	int	Type of standard smoothing procedure (tolerance/time/comb ...), see _smooth
_type	int	Type of archive settings

Constants for the ".._type" attribute


CTRL constant	int value	Description
DPCONFIG_NONE	0	No archive settings
DPCONFIG_DB_ARCHIVEINFO	45	Archive settings

"_archive.<i>._type" attribute


CTRL constant	int value	Description
DPATTR_ARCH_PROC_SIMPLESM	3	Archive smoothing is used
DPATTR_ARCH_PROC_VALARCH	15	Data archived in History DB

Example

Applies an "_archive" config for the 1st day archive (archive number 3) with value-dependent smoothing:

 main()
{
  dpSetWait("TestDP_1.element:_archive.._type",
  DPCONFIG_DB_ARCHIVEINFO,
  "TestDP_1.element:_archive.._archive", TRUE,
  "TestDP_1.element:_archive.1._type",
  DPATTR_ARCH_PROC_VALARCH,
  "TestDP_1.element:_archive.1._class",
  "System1:_ValueArchive_3",
  "TestDP_1.element:_archive.1._std_type",
  DPATTR_VALUE_SMOOTH,
  "TestDP_1.element:_archive.1._std_tol", 10);
}

The following table shows the ASCII file which can be used for configuring the data points (see ASCII-Manager):


ElementName	TypeName	DetailNo	_archive.._type	_archive.._archive	_archive.._class
element	TestDP		45	1
element	TestDP	1	15		System1:_ValueArchive_3

For further details on the config "_archive", see chapter Module PARA - _archive (archiving).