AdsSymbolicServer.OnReadIgIoAsync Method

Handler function for handling pure IG/IO Read indications

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

Syntax

C#

protected virtual Task<ResultReadBytes> OnReadIgIoAsync(
	AmsAddress sender,
	uint invokeId,
	uint indexGroup,
	uint indexOffset,
	int readLength,
	CancellationToken cancel
)

Parameters

sender AmsAddress	The sender address of the request.
invokeId UInt32	The invoke identifier of the request.
indexGroup UInt32	The index group of the requested ADS service
indexOffset UInt32	The index offset of the requested ADS service
readLength Int32	The number of bytes to be read
cancel CancellationToken	The cancellation token.

Return Value

Task<ResultReadBytes>
A task that represents the asynchronous ReadIndicationAsync(AmsAddress, UInt32, UInt32, UInt32, Int32, CancellationToken) operation. The Task<TResult> parameter contains the AdsErrorCode as Result.

Remarks

Overwrite this method in derived classes to react on pure IG/IO ADS Read indications.

Reference

AdsSymbolicServer Class TwinCAT.Ads.Server Namespace

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