ADS Device Notification

Data will carry forward independently from an ADS device to a Client.

Request

The data which are transferred at the Device Notification are multiple nested into one another. The Notification Stream contains an array with elements of type AdsStampHeader. This array again contains elements of type AdsNotificationSample.

AdsNotificationStream

Data array	Size	Description
Length	4 bytes	Size of data in byte.
Stamps	4 bytes	Number of elements of type AdsStampHeader.
AdsStampHeader	n bytes	Array with elements of type AdsStampHeader.

AdsStampHeader

Data array	Size	Description
TimeStamp	8 bytes	The timestamp is coded after the Windows FILETIME format. I.e. the value contains the number of the nano seconds, which passed since 1.1.1601. In addition, the local time change is not considered. Thus, the time stamp is present as universal Coordinated time (UTC).
Samples	4 bytes	Number of elements of type AdsNotificationSample.
AdsNotificationSample	n bytes	Array with elements of type AdsNotificationSample.

AdsNotificationSample

Data field	Size	Description
Notification Handle	4 bytes	Notification handle.
Sample Size	4 bytes	Size of the data area in bytes.
Data	n bytes	Data.

	Single notification If the handle has become invalid, a notification without data is sent once as a note.