IAdsNotificationsAddDeviceNotification(String, Int32, NotificationSettings, Object) Method

Connects a variable to the ADS client. The ADS client will be notified by the AdsNotification event.

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

Syntax

C#

uint AddDeviceNotification(
    string symbolPath,
    int dataSize,
    NotificationSettings settings,
    Object? userData
)

Parameters

symbolPath String	Symbol / Instance path of the ADS variable.
dataSize Int32	Maximum amount of data in bytes to receive with this ADS Notification
settings NotificationSettings	The settings.
userData Object	This object can be used to store user specific data (tag data)

Return Value

UInt32
The notification handle.

Remarks

The

dataSize

Parameter defines the amount of bytes, that will be attached to the AdsNotification as value. Because notifications allocate TwinCAT system resources, a complementary call to DeleteDeviceNotification(UInt32) should always called when the notification is not used anymore.

Reference

IAdsNotifications Interface AddDeviceNotification Overload TwinCAT.Ads Namespace AdsNotification DeleteDeviceNotification(UInt32) {0} Overload {0} Overload {0} Overload

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