AdsServer.ReadRequestAsync Method

Sends an ADS Read Request asynchronously.

Namespace: TwinCAT.Ads.Server
Assembly: TwinCAT.Ads.Server (in TwinCAT.Ads.Server.dll) Version: 6.0.328+39e3229

Syntax

C#

protected Task<AdsErrorCode> ReadRequestAsync(
    AmsAddress target,
    uint invokeId,
    uint indexGroup,
    uint indexOffset,
    int readLength,
    CancellationToken cancel
)

Parameters

target	Type: TwinCAT.Ads.AmsAddress The receiver's AMS address
invokeId	Type: System.UInt32 The invokeId for this call. Used to find the matching ADS Confirmation
indexGroup	Type: System.UInt32 The index group of the requested ADS service
indexOffset	Type: System.UInt32 The index group of the requested ADS service
readLength	Type: System.Int32 The number of bytes to be read
cancel	Type: System.Threading.CancellationToken The cancellation token.

Return Value

Type: Task.AdsErrorCode.
A task that represents the asynchronous ReadRequestAsync(AmsAddress, UInt32, UInt32, UInt32, Int32, CancellationToken) operation. The Task.TResult. parameter contains the AdsErrorCode as Result.

Reference

AdsServer Class

TwinCAT.Ads.Server Namespace