AdsConnection.TryRead Method (UInt32, UInt32, AdsStream, Int32, Int32, Int32.)

Reads data synchronously from an ADS device and writes it to the given stream.

Namespace: TwinCAT.Ads
Assembly: TwinCAT.Ads (in TwinCAT.Ads.dll) Version: 4.3.0.0

Syntax

C#

public AdsErrorCode TryRead(
    uint indexGroup,
    uint indexOffset,
    AdsStream dataStream,
    int offset,
    int length,
    out int readBytes
)

VB

Public Function TryRead ( 
    indexGroup As UInteger,
    indexOffset As UInteger,
    dataStream As AdsStream,
    offset As Integer,
    length As Integer,
    <OutAttribute> ByRef readBytes As Integer
) As AdsErrorCode

Parameters

indexGroup	Type: System.UInt32 Contains the index group number of the requested ADS service.
indexOffset	Type: System.UInt32 Contains the index offset number of the requested ADS service.
dataStream	Type: TwinCAT.Ads.AdsStream Stream that receives the data.
offset	Type: System.Int32 The offset.
length	Type: System.Int32 The length.
readBytes	Type: System.Int32. The read bytes.

Return Value

Type: AdsErrorCode
AdsErrorCode.

Exceptions

Exception	Condition
ObjectDisposedException

Reference

AdsConnection Class

TryRead Overload

TwinCAT.Ads Namespace