TcAdsClient.ReadSymbol Method (ITcAdsSymbol)
Reads the value of a symbol and returns it as an object. Strings and all primitive datatypes(UInt32, Int32, Bool etc.) are supported. Arrays and structures cannot be read.
Namespace: TwinCAT.Ads
Assembly: TwinCAT.Ads (in TwinCAT.Ads.dll)
Version: 4.3.0.0
Syntax
C#
public Object ReadSymbol(
ITcAdsSymbol symbol
)
VB
Public Function ReadSymbol (
symbol As ITcAdsSymbol
) As Object
Return Value
Type: Object
The value of the symbol as an object.
Exceptions
|
Exception |
Condition |
|---|---|
|
Thrown when a ADS datatype is not supported. | |
|
Thrown when the Sync port is not open. |