Methods, systems, and computer program products for communicating with a controller using a database interface
OwnerRobert W. Baxter, Ralph E. Bardinventors
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Abstract
Embodiments of the present invention provide methods, systems, and computer program products for communicating with a controller in real-time by storing a command for the controller in a database. The command may be a command to write a value of a real-time process control variable to the controller or a command to read a value of a real-time process control variable from the controller. Upon detecting the stored command in the database, the stored command is retrieved from the database and sent to the controller.
Claims33
A method of communicating with a controller in real-time, comprising:
- storing a command for the controller in a database, wherein the command is selected from the group of commands consisting of a write command that is configured to write a value of a real-time process control variable to the controller and a read command that is configured to read a value of a real-time process control variable from the controller;
- detecting the stored command in the database;
- retrieving the stored command from the database responsive to detecting the stored command;
- and
- sending the retrieved command to the controller.
A system for communicating with a controller in real-time, comprising:
- means for storing a command for the controller in a database, wherein the command is selected from the group of commands consisting of a write command that is configured to write a value of a real-time process control variable to the controller and a read command that is configured to read a value of a real-time process control variable from the controller;
- means for detecting the stored command in the database;
- means for retrieving the stored command from the database responsive to detecting the stored command;
- and
- means for sending the retrieved command to the controller.
A computer program product for communicating with a controller in real-time, comprising:
- a computer readable program medium having computer readable program code embodied therein, the computer readable program code comprising:
- computer readable program code for storing a command for the controller in a database, wherein the command is selected from the group of commands consisting of a write command that is configured to write a value of a real-time process control variable to the controller and a read command that is configured to read a value of a real-time process control variable from the controller;
- computer readable program code for detecting the stored command in the database;
- computer readable program code for retrieving the stored command from the database responsive to detecting the stored command;
- and
- computer readable program code for sending the retrieved command to the controller.
Dependencies are inferred from the claim text.