The object connects the PROMOTIC application (as OPC client) to the OPC server.
In the
PmaOpcDaClient object it is possible to create the
PmaOpcDaClientGroup object where required data are defined. There can be more
PmaOpcDaClientGroup objects in the
PmaOpcDaClient object.
This object can be created in objects:
PmaRoot,
PmaFolder,
PmaPrototype. Multiple objects of this type can be created in such objects.
The usage of the
PmaOpcDaClient object requires purchase of the
"PmOPC" licence. With the freeware version
PmFree, or when developing the application (with
development environment for testing purposes), this component is always functional.
The
PmaOpcDaClient object can be connected to the OPC server. For the OPC standard description see
Communication by OPC DA interface.
The OPC server can be on the same or on another computer as the PROMOTIC application. If it is on another computer (see the "
Run on computer" configurator), then it is necessary to set the
DCOM network service correctly. See:
Configuration of the DCOM interface for OPC-DA server.