SystemServiceExtensionPollSystemServiceStateAsync Method
Polls the system service state asynchronously
Namespace: TwinCAT.SystemService
Assembly: TwinCAT.Ads (in TwinCAT.Ads.dll)
Version: 7.0.0+e56d35ccc4675faac24789a4aab60071fc61d470
Syntax
C#
public static IObservable<ResultValue<AdsSysServState>> PollSystemServiceStateAsync(
this IAdsConnection connection,
IObservable<Unit> trigger,
CancellationToken cancel
)Parameters
|
connection IAdsConnection |
The client (should be an IAdsConnection on port 10000 with FastWriteThrough) |
|
trigger IObservableUnit |
The trigger. |
|
cancel CancellationToken |
The cancellation token that can be used by other objects or threads to receive notice of cancellation. |
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type IAdsConnection. 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).
Exceptions
|
Exception |
Condition |
|---|---|
|
Client doesn't target port 10000! - client |
Reference
SystemServiceExtension Class TwinCAT.SystemService Namespace
Beckhoff Automation GmbH & Co. KG 2001-2026