Control system apparatus and systems using value-based transfers
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0 Petitions
Accused Products
Abstract
A system for process control comprises a server digital data processor and a client digital data processor that are coupled by a network, such as the Internet or an Intranet. The server digital data processor, which is additionally coupled to a control/sensing device and any associated interface equipment (collectively, referred to as “process control apparatus”), includes a command processor that transfers information between the network and the process control apparatus. The client digital data processor includes an information client (e.g., a so-called Internet web browser) capable of requesting and receiving an applet from the server digital data processor. The information client, further, defines a hardware-independent and operating system-independent virtual machine environment within the client digital data processor. The client digital data processor executes, within that virtual machine environment, an applet for configuring the client digital data processor as a “process controller” that establishes communications over the network with the command processor and that monitors and/or controls the process control apparatus via those communications.
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Citations
71 Claims
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1-48. -48. (canceled)
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49. A portable computer for use in a process control system, comprising:
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a digital data processor that is coupled to process control equipment via a network; software executing on the digital data processor that generates and transmits via the network a request to get a value associated with the process control equipment and to display the value received in response to such request; the software generating and transmitting via the network a request to set a value associated with the process control equipment. - View Dependent Claims (50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60)
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61. A portable computer for use in a process control system, comprising:
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a digital data processor in remote communication with process control equipment; software executing on the digital data processor that generates and transmits a request to get a value associated with the process control equipment and to display the value received in response to such request; the software generating and transmitting via the network a request to set a value associated with the process control equipment. - View Dependent Claims (62, 63, 64, 65, 66)
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67. A portable computer for use in a process control system, comprising:
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a digital data processor in remote communication with process control equipment; software executing on the digital data processor that (i) permits the operator to select process control values that are to be displayed, (ii) transmits one or more requests to get such values, and (ii) displays one or more values received in response to such requests; and the software generating and transmitting via the network a request to set a value associated with the process control equipment. - View Dependent Claims (68, 69, 70, 71)
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Specification