Notification
The Notification folder contains additional blocks that can be used with ADS notifications when reading. The folder contains the following VIs:
- ADS To LabVIEW Timestamp
- Notification Data To Variant Array
- Stop Notification
- Unregister Notification
ADS To LabVIEW Timestamp
The ADS To LabVIEW Timestamp block is a polymorpohic VI and supports single and multiple ADS timestamps (as array). The block converts ADS timestamps, as transmitted by an ADS notification from TwinCAT, into LabVIEW™ timestamps.
Notification Timestamp Single
The Notification Timestamp Single block converts single ADS timestamps to LabVIEW™ timestamps.
Input/output | Meaning |
|---|---|
[1] Ads Timestamp | Single ADS timestamp |
[0] LabVIEW Timestamp | Single converted LabVIEW™ timestamp |
Notification Timestamp Buffered
The Notification Timestamp Buffered block converts multiple ADS timestamps to LabVIEW™ timestamps.
Input/output | Meaning |
|---|---|
[1] Ads Timestamp | Array of ADS timestamps |
[0] LabVIEW Timestamp | Array of converted LabVIEW™ timestamps |
Notification Data To Variant Array
The Notification Data To Variant Array block converts ADS raw data that has been read with ADS notification into a suitable LabVIEW™ Variant.
Input/output | Meaning |
|---|---|
[11] Notification Data | ADS raw data |
[10] Samples | Number of samples |
[3] Notification Data | Converted raw data in LabVIEW™ variant |
Stop Notification
The Stop Notification block stops receiving ADS notifications.
Input/output | Meaning |
|---|---|
[5] Notification/Reader handle | Handle to the ADS Notification/Reader |
[2] Notification/Reader handle | Handle to the ADS notification/ADS reader |
[1] Has stopped? | Boolean flag (TRUE if notification is stopped, FALSE otherwise) |
Start Notification
The Start Notification block starts the registered notification.
Input/output | Meaning |
|---|---|
[5] Reader Handle | Handle to the ADS reader |
[4] bWaitForRegistered? | True if the notification is to be started. |
[2] Reader Handle | Handle to the ADS reader |
[1] Has started? | Boolean flag (TRUE if notification is started, FALSE otherwise) |
Unregister Notification
The Unregister Notification block unregisters the notification on the ADS server.
Input/output | Meaning |
|---|---|
[0] Handle | The handle to the client (can also be left blank) |
[5] Reader Handle | Handle to the ADS reader |
[4] Handle | Handle to the ADS client |
[6] Reader Handle | The handle to the ADS reader |
[8] Has unregistered? | Boolean flag (TRUE if notification is registered, FALSE otherwise) |