IAdsHandle.ReadWriteAsync Method

ReadWrites value data asynchronously to/from the symbol represented by the variableHandle.

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

Syntax

C#

Task<ResultReadWrite> ReadWriteAsync(
    uint variableHandle,
    Memory<byte> readBuffer,
    ReadOnlyMemory<byte> writeBuffer,
    CancellationToken cancel
)

Parameters

variableHandle	Type: System.UInt32 Variable handle.
readBuffer	Type: System.Memory.Byte. The read data / value
writeBuffer	Type: System.ReadOnlyMemory.Byte. The write data / value.
cancel	Type: System.Threading.CancellationToken The cancellation token.

Return Value

Type: Task.ResultReadWrite.
A task that represents the asynchronous 'ReadWrite' operation. The ResultReadWrite parameter contains the total number of bytes read into the buffer (ReadBytes) and the ErrorCode after execution.

Reference

IAdsHandle Interface

TwinCAT.Ads Namespace