AdsClient.ReadValueAsync.TValue. Method (ISymbol, CancellationToken)
Reads the value of a symbol asynchronously and returns it as an object.
Namespace: TwinCAT.Ads
Assembly: TwinCAT.Ads (in TwinCAT.Ads.dll)
Version: 6.0.328+39e3229
Syntax
C#
public Task<ResultValue<TValue>> ReadValueAsync<TValue>(
ISymbol symbol,
CancellationToken cancel
)
Parameters
|
symbol |
Type: TwinCAT.TypeSystem.ISymbol |
|
cancel |
Type: System.Threading.CancellationToken |
Type Parameters
|
TValue |
The value type. |
Return Value
Type: Task.ResultValue.TValue..
A task that represents the asynchronous read operation. The
ResultAnyValue
parameter contains the read value (Value) and the ErrorCode after
execution.
Exceptions
|
Exception |
Condition |
|---|---|
Remarks
Supported types are limited to 'AnyTypes', what includes all primitive types (UInt32, Int32, Bool etc.), strings, and Arrays that are compositions of 'AnyTypes'.