dOPCDA.TdOPCItemProperties

class to store a list of all properties of an OPC Item

Delphi

TdOPCItemProperties = class(TdList);

C++

class TdOPCItemProperties : public TdList;

Description

TdOpcItemProperties can be used to browse the available properties (also referred to as attributes or parameters) associated with an item.

Remarks

Besides the current values of these properties can be read.

Example

Copy Code

//get all Properties from Item 'A100.SP'

Props := TdOpcItemProperties.Create(OPCServer,'A100.SP');
for i := 0 to Props.Count-1 do
  with Props[i] do
    ShowMessage(Format('property %d %s Datatype: %d Value: %s',[Id,Description,Datatype,ValToAStr(Value)]));
Props.Free;