IValueSymbol.ReadValueAsync Method
Reads the Value of the IValueSymbol asynchronously.
Namespace: TwinCAT.TypeSystem
Assembly: TwinCAT.Ads.Abstractions (in
TwinCAT.Ads.Abstractions.dll) Version: 6.0.328+39e3229
Syntax
C#
Task<ResultReadValueAccess> ReadValueAsync(
CancellationToken cancel
)
Parameters
|
cancel |
Type: System.Threading.CancellationToken |
Return Value
Type: Task.ResultReadValueAccess.
A tasks that represents the asynchronous 'ReadValue'
operation. The read result is stored in the ResultReadValueAccess
return value and contains the Value and the
ErrorCode.
Remarks
Calling on primitive types, a call of this method will return the primitive value. On complex types (structures and arrays) it depends on the ISymbolLoader settings what will happen. In non dynamic modes: the raw byte Array will be returned, in dynamic mode: A Value will be created on the fly.