ValueSymbolExtensionsPollValuesT(IValueSymbol, IObservableUnit) Method

Poll symbol values as a value sequence on trigger signals (typed)


Namespace: TwinCAT.Ads.Reactive
Assembly: TwinCAT.Ads.Reactive (in TwinCAT.Ads.Reactive.dll) Version: 7.0.0+e56d35ccc4675faac24789a4aab60071fc61d470

Syntax

C#

public static IObservable<T> PollValues<T>(
    this IValueSymbol symbol,
    IObservable<Unit> trigger
)

Parameters

symbol  IValueSymbol

The symbol.

trigger  IObservableUnit

The Polling trigger

Type Parameters

T

Return Value

IObservableT
IObservable<System.Object>.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IValueSymbol. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

Remarks

Read errors will end the observable with AdsException error.

Reference

ValueSymbolExtensions Class PollValues Overload TwinCAT.Ads.Reactive Namespace PollValuesT(IValueSymbol, IObservableUnit, Boolean) PollValuesT(IValueSymbol, TimeSpan)

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