Adapter for OPC 10.3 | webMethods Adapter for OPC Documentation | webMethods Adapter for OPC Installation and User's Documentation | Adapter Listeners and Listener Notification | Configuring an Adapter Listener
 
Configuring an Adapter Listener
1. In Integration Server Administrator, select Adapters > Adapter for OPC.
2. In the Adapter for OPC menu, select Listeners.
3. On the Listeners screen, select Configure New Listener.
4. On the Listener Types screen, select Subscription Listener.
5. On the Configure Listener Type screen, configure the following fields:
Parameter
Description/Action
Package
The package in which to create the listener.
Create the listener in a user-defined package rather than in the adapter's package. For other considerations when creating packages for the adapter, see Overview of Package Management.
You must create the package using Software AG Designer before you can specify the package by using this parameter. For information about creating packages, see webMethods Service Development Help.
Folder Name
The folder in which to create the listener.
Listener Name
The name of the new listener.
Connection Name
The name of the connection.
Retry Limit
The number of times that the adapter tries to reconnect, if the adapter fails to connect to or loses connection with the OPC UA server.
Retry Backoff Timeout
The number of seconds that elapse between each of the retries specified in the retry limit.
Important:
The listener name is prefixed by the folder name and is separated by a colon. For example, if the folder name is "Folder1" and the listener name is "Listener1", the listener name in the Listeners screen will be "Folder1:Listener1".
6. In the Listener Properties section, configure the following fields:
Parameter
Description/Action
Publish Interval(ms)
Defines how often the OPC UA server checks for notification for a Subscription which is then sent back to Adapter for OPC
Default: 1000 (ms).
Keep Alive Count
If there is no data to publish after the next PublishingInterval, this parameter defines how many intervals the server skips before an empty notification is sent to Adapter for OPC. It indicates that the subscription is still alive in the server and there is no data to send.
Lifetime Count
It defines the number of PublishingIntervals to wait for a new PublishRequest, before realizing that the Adapter for OPCListener is no longer active. The Subscription is then removed from the server.
Max Notification Per Publish
The limit of notification messages per publish sent from the OPC UA server to the adapter.
Priority
It defines the priority of a subscription relative to the other subscription created by the Adapter for OPC.
Monitoring Mode
The monitoring mode defines the behavior of the notification on the OPC UA server. The types of monitoring modes are:
*Reporting. The datasource is sampled and the notification is sent to the Adapter for OPC.
*Sampling. The datasource is only sampled and no notification is sent to the Adapter for OPC.
*Disabled. The datasource is disabled.
7. Click Save.