Abstract:
PROBLEM TO BE SOLVED: To provide a method, device and product for accessing process control data.SOLUTION: The method, device and product for accessing the process control data includes a step for loading a client object, and a step for communicating with a real object configured so as to make a data access request communicate with a server from the client object. The real object communicates with the server about an inquiry on the basis of the data access request, and acquires the process control data from the server in response to the inquiry. Next, the process control data is mapped to a second data layout related to a client schema from a first data layout related to a server schema. The mapped process control data is then communicated with an application.
Abstract:
PROBLEM TO BE SOLVED: To provide a system for accessing process control data.SOLUTION: A system for accessing process control data comprises: a pre-generated partial class that includes pre-generated class elements associated with access; a user-generated partial class having user-defined class elements that can access process control data via the pre-generated class elements; a user interface configured to instantiate a client object on the basis of these partial classes and configured to access process control data on the basis of the pre-generated and user-defined class elements; and a client model configured to load an object handle and a real object associated with the client object and communicate process control data between the client object and a server via these objects.