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Data Management
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Common Name Service (CNS)
The plantmodel editor can be used for building and modifying data structures such as views and trees based on CNS and use them within projects easily.
CNS Control Functions
cns_isNode
Checks whether the given string is a valid CNS node identifier.

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Data Management
Classify, structure and archive your data.
- Archiving
  Overview of the archiving solutions currently available in WinCC OA
- Module PARA
  Graphical interface for editing datapoints and datapoint types.
- Common Name Service (CNS)
  The plantmodel editor can be used for building and modifying data structures such as views and trees based on CNS and use them within projects easily.
  - Editor
  - Viewer
  - OPC
  - Modbus
  - MQTT
  - Log
  - Nodetype
  - CNS Control Functions
    - cnsAddNode
      Adds a new node to a tree or sub-tree.
    - cnsAddTree
      Allows to create a tree or sub-tree.
    - cnsAddObserver
      Registers the given function as CNS observer.
    - cnsChangeNodeData
      Changes the datapoint (element) and type of the given node.
    - cnsChangeNodeDisplayNames
      Changes the display name of the given node.
    - cnsChangeNodeName
      Changes the ID of the given node.
    - cnsChangeTree
      Replaces a tree or sub-tree with a new tree.
    - cnsChangeViewDisplayNames
      Changes the display name of the given tree.
    - cnsChangeViewName
      Changes the ID of the given view.
    - cnsChangeViewSeparators
      Changes the separators of the given view.
    - cnsCreateView
      Allows to create a new view.
    - cnsDeleteTree
      Allows to delete a tree, sub-tree or node.
    - cnsDeleteView
      Allows to delete a view (with all its trees).
    - cnsGetAccessRight
      Returns the AccessRight (value of the defined parameter "propertyKey") as UINT for the given node.
    - cnsGetChildren
      Returns the ID paths of all child element of a node.
    - cnsGetDisplayNames
      Returns the display names of a node.
    - cnsGetDisplayPath
      Returns the display name path of a node
    - cnsGetId
      Returns the linked datapoint and CNSDataIdentifierType of the given node.
    - cnsGetIdSet()
      Returns the names of datapoints linked to the matching nodes.
    - cnsGetNodesByData
      Looks for nodes that are linked to the given datapoint (element).
    - cnsGetNodesByName()
      Looks for ID paths of nodes that match the given criteria.
    - cnsGetOPCAccessRight
      Returns the OPC AccessLevel (value of the key OA:OPC) as UINT for the given node.
    - cnsGetParent
      Returns the path of the parent node.
    - cnsGetProperty
      Retrieves the key value from the property of the defined node.
    - cnsGetPropertyKeys
      Returns a list of all keys which are defined for the given node.
    - cnsGetRoot
      Returns the ID path of the root node of the tree which contains the given node.
    - cnsGetSystemNames
      Returns the display names of the given system.
    - cnsGetTrees
      Returns the ID paths of all trees of the given view.
    - cnsGetUserData
      Returns the user data stored in a node.
    - cnsGetViewDisplayNames
      Returns the display names of the given view.
    - cnsGetViewSeparators
      Returns the separators of the given view.
    - cnsGetViews
      Returns the paths of all views in the given system.
    - cnsRemoveObserver
      De-registers the given observer function.
    - cnsRemoveProperty
      Removes the key from the property of the given node.
    - cnsSetProperty
      Sets the properties for the given node as key/value pair.
    - cnsSetSystemNames
      Changes the display name of the given system.
    - cnsSetUserData
      Stores user data in a node.
    - cnsSubStr
      Extracts parts of a CNS path.
    - cns_checkId
      Checks whether the ID is valid.
    - cns_checkName
      Checks whether the given display name is valid.
    - cns_checkSeparator
      Checks if the separator is valid or not.
    - cns_createNodeType
      Creates a new node type.
    - cns_createTreeOrNode
      Creates a tree or a node and adds it to the given parent element.
    - cns_createView
      Creates a new view.
    - cns_createViewDp
      Creates a internal datapoint for the given view.
    - cns_deleteNodeType
      Deletes the given node type.
    - cns_deleteTreeOrNode
      Deletes the given tree or node.
    - cns_deleteView
      Deletes the given view.
    - cns_deleteViewDp
      Deletes the internal datapoint which is linked to the given view.
    - Common Name Service Control Functions
      The following control functions are provided for an easier use of the Common Name Service feature in scripts.
    - cns_getNodeIcon
      Returns the path of the icon defined for the given ID.
    - cns_getNodeTypeDisplayName
      Returns the display name of the given node type.
    - cns_getNodeTypeIcon
      Returns the icon path of the given node type.
    - cns_getNodeTypeValue
      Returns the value of the given node type.
    - cns_getNodeTypes
      Returns all existing node types.
    - cns_getReadableViews
      Returns a list with all views (for which the current permission is sufficient) of the given system.
    - cns_getViewPermission
      Returns the permission bits defined for the given view.
    - cns_isNode
      Checks whether the given string is a valid CNS node identifier.
    - cns_isTree
      Checks whether the given node ID is a tree or not.
    - cns_isView
      Checks whether the given string is a valid CNS view identifier.
    - cns_nodeExists
      Checks if the given node exists.
    - cns_setNodeIcon
      Sets an icon for the given node.
    - cns_setNodeTypeDisplayName
      Sets the multilingual display name of a node type.
    - cns_setNodeTypeIcon
      Allows to set an icon for the given node type.
    - cns_setNodeTypeValue
      Sets the value of the given node type.
    - cns_setViewPermission
      Sets the permission for the given view.
    - cns_treeExists
      Checks whether the given tree exists.
    - cns_viewDpToName
      Returns the ID of the view which is linked to the given internal data point.
    - cns_viewExists
      Checks whether the given view exists or not.
    - cns_viewNameToDpName
      Returns the name of the internal datapoint linked to the given view.
    - cns_changeNodeTypeName
      Changes the ID of a node type.
    - cns_changeViewName
      Changes the ID of the given view.
- Mass configuration
  Mass configuration in WinCC OA redefines the fundamental principles of setting up a project and subsequent configuration of the huge range of data points.
- SQL Panel
  The SQL panel allows you to enter SQL statements to perform queries on current and archive data in the WinCC OA database.
- ASCII Manager
  The ASCII Manager allows you to input and output and thus edit datapoints and data point types and to configure datapoints.
- Correction Values and Laboratory Values
  These panels can be used to change existing values (=correct), query values from and add new values too the HistoryDB and RDB.
- Datapoint Groups
  The main purpose of grouping datapoints is to simplify selection of datapoints and datapoint elements.
- Delayed Alerts
  An alert delay can be configured with delayed alerts. This allows short range changes to be filtered out.
- Relational Databases with Control-ADO
  The DB interfaces in WinCC OA offer the possibility of an access to external databases.
- Online Backup with Acronis Cyber Protect
  WinCC OA provides automated integration of WinCC OA backup functionality with Acronis backup software.
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cns_isNode

Checks whether the given string is a valid CNS node identifier.

Synopsis

bool cns_isNode(string node);

Parameters


Parameter	Description
node	String to be checked for a valid CNS node identifier.

Return value

Returns TRUE if the given string is a valid CNS node identifier, otherwise FALSE. The function does not check whether the referenced node actually exists.

Description

This function checks whether the given string is a valid CNS node identifier. It does not verify whether the referenced node actually exists in the CNS.

main()
{
  cns_isNode("System1.View3:Node1");
}

Availability

UI, CTRL