***Important notes before configuring WIN-911***

Please review the System Requirements page for supported SCADA versions and other helpful information.

*** Important OPC Notes ***

Please review the OPC Network Diagrams for recommended architecture examples.


*** WIN-911 Configuration ***

In the WIN-911 Workspace, expand Alarm Sources > OPC Data Access > Click +Add Source.

Select "OPC UA DA"

Fill out the corresponding fields in WIN-911, to connect to the OPC UA Server.

Name: Enter a name for your OPC data source.

Server Endpoint: This is the URL for the OPC Data Access server hosting the UA server. 

This will be found in some form of "OPC UA Configuration" settings, in the OPC vendor software. 

Example using Kepware KEPServer: 

Authentication: This options depends entirely on your OPC server and its requirements. If it supports Anonymous Identity, this can stay as the default. 

If it requires a certain identity type, the following options are supported:

Endpoint Selection Policy: This options depends entirely on your OPC server and its requirements. Verify which settings are supported by the server, and select the matching option here. 

KEPServer Security Policies example:

Common Certificate Acceptance Policy: These options depends entirely on your OPC server and its requirements. Check all 3 options in order to not block the certificate from the WIN-911 side of the connection.

When the settings above are all configured, and the OPC server is configured the same way, click "Test Connection" and you should get an error:

When you click test connection, an exchange of certificates is happening between the WIN-911 runtime, and the OPC server you have configured. 

Now click "Show Certificates" and take note of a new certificate listed here for acceptance. If there is a red X next to the cert, select it, and click "Trust Selected Certificate" and then "Reload Certificates":

This process will need to be done on the OPC server side as well. Go back to the OPC UA Configuration for that software, and find the Trusted Clients / certificates section, and accept the WIN-911 certificate:

Now go back to the WIN-911 workspace and click "Test Connection" again. If both certificates are accepted, you should see a success message:

Add alarm Items

Alarms are configured in WIN-911 for OPC DA data sources and WIN-911 determines when a specific alarm condition exists.

Clicking + Add Item will present a new item configuration entry.  

Enter an Item Name, the Item ID can be manually entered exactly as it exists in the OPC server, or simply browse for the item with the ellipsis button (NOT ALL OPC servers support a browse feature). 

NOTE: The browse window can easily be filtered with the search field. 

Importing Items

If your OPC server supports the browse functionality, and DCOM is configured correctly to allow it, importing items to create alarms can be much easier and less time consuming.

This is done by clicking the "Items and Alarms" tab and then "Import Items." 
The options for importing OPC items into WIN-911 are displayed:

Select the desired import method and click Next to continue through the prompts.  

In this example, we will choose to browse the OPC server for items

Select the desired items, the "Alarm On" option, and the Notification Policy the alarms should be sent to. Click the > arrow to move them to the right side and click Import.

Once imported, further customization can be made to the OPC Item + Alarm Type settings. 


Example of changing Alarm Type to a Level alarm:

And always... Save your changes!

Heartbeat (Optional) 

WIN-911 can indicate its operational status by writing a periodically changing value to a specified OPC DA item. We call this function a Heartbeat because it provides a vital-sign to your Application, allowing for corrective action to be taken.

The Heartbeat takes the form of an Integer value that ramps from 1 to 9 at a write interval of your choosing. After the value reaches 9 it resets to one, and the process is repeated ad infinitum. If the tag fails to update within the specified time, you can assume that WIN-911 is in an impaired state and no longer able to receive alarm event information.

Watchdog (Optional) 

WIN-911 has the option to configure a watchdog to check if it can still communicate with the OPC DA server. This will monitor the specified Item ID for changes. If no changes are detected within the configured timeout period, WIN-911 will generate an alarm.  

Enter a name, enter or browse for the Item ID to monitor, select the timeout interval, and choose which Notification Policy to use for notifying. 

Technical Support

To create a support case, you will need either your Customer Care Code or your Serial number. You can create a Case online or contact the product support line: (512) 326-1011.