Versionsinformationen
Release Notes, Update-Informationen, Zertifizierungen and häufig gestellte Fragen.
Konzepte
Ihr erster Schritt in die moderne und leistungsstarke Prozessvisualisierung.
Deployment
Topics, you need to know, before using WinCC OA.
Sicherheit
Wachsen sie in Bezug auf Cybersecurity über die Norm hinaus.
Engineering
Leistungsstarke Tools für einfache sowie komplexe Engineering-Aufgaben.
Datenmanagement
Klassifizieren, strukturieren und archivieren sie Ihre Daten.
Business Logic / Control
Endless possibilities in data processing for your projects.
- Introduction to CTRL
  An introduction to the product's own programming language Control(CTRL).
- Control Classes
  The overview of classes available in Control.
- Types of Control Functions
  An overview of the types of functions distinguished within Control.
- Control graphics
- CONTROL Functions
  - Funtions A
  - Funtions B
  - Funtions C
  - Funtions D
  - Functions E
  - Functions F
  - Functions G
  - Functions H
  - Functions I
  - Functions J
  - Functions K
  - Functions L
  - Functions M
  - Functions N
  - Functions O
  - Functions P
  - Functions Q
  - Functions R
    - rad2deg()
      Converts an angle from a radian measure into degrees.
    - rand()
      Calculates a sequence of integer pseudo random numbers.
    - readSMS()
      The readSMS() function reads a SMS message with the phone number of the sender and the time when the message has been sent. Possible errors will be read as well. If you want to use the control function, the runtime script sms.ctl has to run in the console.
    - recode()
      The function converts a string and returns the string in the desired encoding.
    - reduActive()
      In a redundant system, returns the active computer.
    - reduSetActive()
      Activates the emergency switch on the left or on the right.
    - reduSetInactive()
      Deactivates the emergency switch on the left or on the right in a redundant system.
    - reduSetPreferred()
      Sets the Preferred to left or right in a redundant system.
    - reduSetSplitOff()
      Sets the split mode to off in a redundant project.
    - reduSetSplitOn()
      Sets the split mode in a redundant system.
    - reduSwitchDist()
      Switches over in the split mode.
    - reduSwitchDriver()
      Switches the drivers in the split mode.
    - regexpIndex()
      The function "regexpIndex()" provides pattern matching via regular expressions. The function searches for a match of the specified character starting from the given position.
    - regexpLastIndex()
      The function "regexpLastIndex()" provides pattern matching via regular expressions. The function searches for a match of the specified character(s) starting at the end of the string.
    - regexpSplit()
      The function "regexpSplit()" provides pattern matching via regular expressions.
    - registerDbgFlag()
      Registers a debug flag and returns a debug flag number.
    - releaseComObject()
      Releases the COM object.
    - reloadSecurityEventConfig()
      Function reloads the Security Event JSON configuration file for the local managers and PMON.
    - remove()
      The function remove() deletes a file.
    - removeAllBreakpoints()
      Removes all breakpoints from the current document.
    - removeDoneCB()
      The function prevents the calculation of unwanted data in data point functions and statistical functions.
    - removeGlobal()
      Deletes the manager-wide global CTRL variable name.
    - removeGroup()
      The function removes a group connection from the panel.
    - removeGroupPVSS()
      Removes a WinCC OA group.
    - removeShape()
      The function removes a shape from the panel.
    - removeSymbol()
      The function is used to delete panel references.
    - removeUserFromGroupPVSS()
      Removes a WinCC OA group from a user.
    - removeUserPVSS()
      The function permanently disables a user.
    - rename()
      The function renames a file.
    - renameGroupPVSS()
      Renames a WinCC OA user group.
    - renameUserPVSS()
      Renames a WinCC OA user.
    - requestFileList()
      The function requestFileList() requests a file list from the manager with the specified manager Id.
    - requestFileTransfer()
      The function requestFileTransfer() requests a list of files to be transferred from the active to passive partner in a redundant project.
    - restoreBookmarks()
      All bookmarks in the ewo are stored for the given context with ControlS_Z/saveBookmarks.html and can be restored again by passing the same context string to restoreBookmarks().
    - restorePanel()
      Opens an already loaded child panel that had been minimized.
    - restoreSettings()
      Loads and applies all settings defined via the script editor.
    - rewind()
      Places the pointer at the beginning of the file FileDesc.
    - rmdir()
      The function deletes a specified directory.
    - rootPanel()
      Returns the name of a particular root panel.
    - RootPanelOn()
      Opens a new panel in the current module.
    - RootPanelOnModule()
      Opens a panel in a particular module.
    - RSAGenerateKeyPair()
      The function RSAGenerateKeyPair() generates a public and a private key for the functions RSASealEnvelope() and RSAOpenEnvelope().
    - RSAOpenEnvelope()
      The function RSAOpenEnvelope() decrypts data.
    - RSASealEnvelope()
      The function RSASealEnvelope() encrypts data.
    - runRealSQL()
      The function runRealSQL executes an SQL command that does not return a value such as INSERT or DELETE.
    - runRealSQLQuery()
      The function runRealSQLQuery executes an SQL query of the RDB database.
  - Functions S
  - Functions T
  - Functions U
  - Functions V
  - Functions W
  - Functions X
  - Functions Y
  - Functions Z
- CtrlExtension
  Die CtrlExtension ermöglicht das Hinzufügen von benutzerdefiniertem C++-Code.
- CTRL-Debugger
  Der CTRL-Debugger ermöglicht ein Debuggen der Pogrammiersprache Control. Der Debugger kann über ein eigenes Panel verwendet werden, welches es auch erlaubt die Variablen zu beinflussen, Breakpoints zu setzen, usw.
- SQL in CONTROL
  Mit den Datenbankfunktionen besteht eine Möglichkeit, Werteabfragen von Datenpunkten und -elementen schnell durchzuführen.
- API Manager
  Das API von WinCC OA (Application Programming Interface) bietet eine Reihe von Funktionen, die es ermöglichen, dieses Prozessleitsystem um spezielle Manager zu erweitern.
Datenvisualisierung
User Interfaces, Trends und Reports für jeden Zweck und jedes Gerät.
Southbound Interfaces
Der Prozessanschluss zu den echten Maschinen/Sensoren.
Northbound Interfaces
Ihr Portal zur Cloud oder übergeordneten Systemen.
Konnektivität / Netzwerk Schnittstellen
Datenaustausch, APIs und moderne (Web) Technologien.
Benutzerverwaltung
Alles über Autorisierung, Authentifizierung und Login-Anpassung.
Verfügbarkeit
Wie sie maximale Systemverfügbarkeit erreichen können.
Reporting
Erstellen sie "State of the art"-Reports ohne Limits.
Erweiterungen
Nützliche Werkzeuge und Erweiterungen für spezielle Anforderungen.
Referenztabellen
Detaillierte und umfangreiche Inhalte für spezielle Projektanpassungen.
Videos & Tutorials
Videos zu speziellen Themen for schnelle Einblicke.
Dokumentation
Grundlegende Informationen über Bezeichnungen und Funktionsweisen innerhalb der Dokumentation.
Disclaimer
Erläuterungen zu Haftungsausschlüssen oder rechtlichen Hinweisen.

rad2deg()

Converts an angle from a radian measure into degrees.

Synopsis

float rad2deg( float x );

Parameters


Parameter	Description
x	angle

Return value

In the event of errors, the function returns 0.0.

Error

Invalid or missing arguments

Description

Converts the angle x in a radian measure into degrees

Example

main()
{
  float f;
  f=deg2rad(90); // PI/2
  f=rad2deg(f); // 90 again
}

Assignment

Mathematical function

Availability

CTRL