OPC UA Event Subscription

Description

The OPC UA Event Subscription Channel is an Inbound Channel, which is used to receive event calls on an OPC UA Server (Environment Entry). For this purpose, each OPC UA Event Subscription Channel creates its own Subscription, which holds a list of monitored event items. If one or more of these monitored event items is called, the OPC UA Event Subscription Channel will be triggered from the OPC UA Server, starting a Process Model.

Start error process: If the channel encounters an error you can connect it in the process model with an error start event to create a process instance for handling that error.

If you leave the error hold time field as blank then the process instance will be created every time an error occurs. If errors occur rapidly, a lot of process instances will be created. You can avoid this by entering a period of time in the field. Any further errors occur within this period, no further error process instance will be created.