摘要:
A supervisory control system and display client are disclosed. The supervisory control system generates a graphical display representative of an operational status of operational components in a plant, facility or process being supervised. There are typically several types of operational components in the plant, facility or process. The system includes a server in communication with the operational components via a network. The server maintains a plurality of equipment unit objects, each of the equipment unit objects having one or more parameters representative of the operational status of the operational components. A display client is in communication with the server. The display client stores one or more equipment symbol objects, each of the one or more equipment symbol objects defining a graphical representation of one of the one or more operational components in the graphical display. The display client also stores a picture object that describes a location of each of the one or more operational components in the graphics display. The display client requests an update of the graphical display and receives equipment unit objects from the server. A processor in the display client generates the graphical display by processing the one or more equipment unit objects with the picture object and with the one or more equipment symbol objects.
摘要:
A collaborative authoring system and method is disclosed. An integration platform having a backbone layer and an integration layer is used to enable collaborative authoring of data between multiple authoring applications. When a request for a data object is received at the integration platform from an authoring application, it is determined whether the data object is stored in the integration layer. If the data object is not stored in the integration layer, a data cluster including the data object is loaded to the integration layer from the backbone layer, and the data cluster is locked in the backbone layer. The data object is loaded from the integration layer to the authoring application, and the data object is locked in the integration layer. Once the data object is modified, the modified data object is received at the integration layer, and the data object is unlocked in the integration layer. The modified data object is propagated to the backbone layer, and if there are no remaining locks on data objects of the cluster, the cluster is unlocked in the backbone layer.
摘要:
A collaborative authoring system and method is disclosed. A collaboration server stores objects and applications open the objects stored on the collaboration server as documents. Collaborative authoring is enabled through a combination of coarse-grained server locks on objects stored in a collaboration server for short term server transactions and fine-grained application specific internal locks to lock portions of documents for authoring sessions. When an application begins an authoring session, an object stored in the collaboration server is opened as a document in an application, a server lock is applied to the object, internal locks are applied to portions of the document, and the server lock is removed from the object.
摘要:
A supervisory control system and display client are disclosed. The supervisory control system generates a graphical display representative of an operational status of operational components in a plant, facility or process being supervised. There are typically several types of operational components in the plant, facility or process. The system includes a server in communication with the operational components via a network. The server maintains a plurality of equipment unit objects, each of the equipment unit objects having one or more parameters representative of the operational status of the operational components. A display client is in communication with the server. The display client stores one or more equipment symbol objects, each of the one or more equipment symbol objects defining a graphical representation of one of the one or more operational components in the graphical display. The display client also stores a picture object that describes a location of each of the one or more operational components in the graphics display. The display client requests an update of the graphical display and receives equipment unit objects from the server. A processor in the display client generates the graphical display by processing the one or more equipment unit objects with the picture object and with the one or more equipment symbol objects.
摘要:
Methods and architectures are described that provide function block mobility between PLCs. Each PLC configured with Mobile Function Blocks (MFBs) may forward and execute MFBs from each other. To enable MFB mobility over a communication bus, each PLC having one or more configured MFBs requires a Communication Function Block (CFB) and an MFB directory data block. Each PLC maintains an MFB directory data block to store its MFB directory which is used when other PLCs send requests to check the availability of MFBs they need to run new tasks.
摘要:
The present invention relates to a method and unit for controlling and monitoring a process, for example an industrial process. Furthermore, the present invention relates to a computer program product and a supervisory system comprising at least one such unit. An process specific object model is held in a managed object component (4) of a monitoring and control service unit (1) and represents the technological view of the process. First, subscriptions are established in a data access business logic component (8) via a data access delegate component (9) to data sources. Then, the data sources notify current process values via the data access delegate component (9) to the data access business logic component (8). After that, the current process values are stored in the object model held in the managed object component (4). These stored current process values are notified from the managed object component (4) to the data access business logic component (8). Finally, the stored current process values are passed from the data access business logic component (8) via a data access component (7) to a user interface (11).