IAdsAnyAccessReadAnyAsyncT(String, Int32, CancellationToken) Method
Reads data asynchronously 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<ResultValue<T>> ReadAnyAsync<T>(
string instancePath,
int[]? args,
CancellationToken cancel
)Parameters
|
instancePath String |
The variable/symbol instance path. |
|
args Int32 |
Additional arguments. |
|
cancel CancellationToken |
The cancellation token. |
Type Parameters
|
T |
Type of the object to be read |
Return Value
Task
ResultValueT
A task that represents the asynchronous read operation. The
ResultValueTValue
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