OPC DA Trigger

The OPC DA Trigger node reads data from an OPC DA Server.

Configuration

OPC Connection

Select a OPC Configuration configured in the Global Configurations

Add Signal Value

If enabled, the value of the signals is included in the output data group

Default: disabled

Update Rate [ms]

The rate in milliseconds at which the OPC server checks of updates to send to the node.

Default: 300000

Dead-Band [%]

The minimum percentage change from 0.0 to 100.0 required to trigger a data update for an item.

Default: 0

Define the signals to retrieve from the OPC DA Server.

OPC Name: The name of the signal at the the OPC server.
Flow Name (optional): The name of the signal in the incoming data group. If this field is empty the Flow Name is the same as the OPC Name.
max. Age [ms] (optional): The oldest (in milliseconds) acceptable cached value when reading an item.
Dead-Band [%] (optional): The minimum percentage change required to trigger a data update for an item.
Sampling Rate [ms] (optional): How frequently the server should sample the item value.
Buffering (optional): Whether the server should buffer multiple data changes between data updates.