getNameList

Get names of all aggregate types or item attributes of OPC HDA object

Syntax

nameCell = getNameList(obj)

Description

nameCell = getNameList(obj) returns all names stored in the OPC HDA aggregate type or item attribute object obj.

Examples

Retrieve Aggregate Type and Item Attribute Name List

Create an OPC HDA client and connect the client to the server.

hdaObj = opchda('localhost','Matrikon.OPC.Simulation');
connect(hdaObj);

Retrieve all the names of the aggregate types available on the connected server.

allNames = getNameList(hdaObj.Aggregates)

allNames =

  6×1 cell array

    {'INTERPOLATIVE'    }
    {'TIMEAVERAGE'      }
    {'MINIMUMACTUALTIME'}
    {'MINIMUM'          }
    {'MAXIMUMACTUALTIME'}
    {'MAXIMUM'          }

Retrieve all the names of the item attributes available on the connected server.

allNames = getNameList(hdaObj.ItemAttributes)

allNames =

  10×1 cell array

    {'DATA_TYPE'     }
    {'DESCRIPTION'   }
    {'NORMAL_MAXIMUM'}
    {'NORMAL_MINIMUM'}
    {'ITEMID'        }
    {'TRIANGLE'      }
    {'SQUARE'        }
    {'SAWTOOTH'      }
    {'RANDOM'        }
    {'BUCKET'        }

Input Arguments

obj — OPC HDA object

opc.hda.AggregateTypes | opc.hda.ItemAttributes

OPC HDA object for aggregate types or item attributes, specified as an opc.hda.AggregateTypes object or an opc.hda.ItemAttributes object.

Example: hdaObj.Aggregates

Output Arguments

nameCell — Name of aggregate type or item attribute

cell array of character vectors

Property name of OPC HDA client aggregate types or item attributes, returned as a cell array character vectors even if Obj stores only one ID.

Version History

Introduced before R2006a