IAdsAnyAccessReadAnyAsync(UInt32, Type, Int32, CancellationToken) Method
Reads data synchronously from an ADS device and writes it to an object.
Namespace: TwinCAT.Ads
Assembly: TwinCAT.Ads.Abstractions (in
TwinCAT.Ads.Abstractions.dll) Version:
7.0.0+e56d35ccc4675faac24789a4aab60071fc61d470
Syntax
C#
Task<ResultAnyValue> ReadAnyAsync(
uint variableHandle,
Type type,
int[]? args,
CancellationToken cancel
)Parameters
|
variableHandle UInt32 |
The variable handle. |
|
type Type |
Type of the object to be read. |
|
args Int32 |
Additional arguments. |
|
cancel CancellationToken |
The cancellation token. |
Return Value
Task
ResultAnyValue
A task that represents the asynchronous read operation. The
ResultAnyValue
parameter contains the read value (Value) and the
ErrorCode
after execution.
Remarks
As object types only primitive types are supported. If the Type of the object to be read is a string type, the first element of the parameter args specifies the number of characters of the string. If the Type of the object to be read is an array type, the number of elements for each dimension has to be specified in the parameter args.
|
Type of value Parameter |
Necessary Arguments (args) |
|---|---|
|
string |
args[0]: Number of characters in the string typed as FixedLengthZeroTerminated. |
|
string[] | |
|
Array |
Reference
IAdsAnyAccess Interface ReadAnyAsync Overload TwinCAT.Ads Namespace
Beckhoff Automation GmbH & Co. KG 2001-2026