Node management for node communication network for highly versatile field devices in control and automation system
An automation system and communication network technology, applied in the field of process control and factory automation systems, can solve the problems of communication loss, low effectiveness of process controllers, etc.
Pending Publication Date: 2022-03-11
FISHER-ROSEMOUNT SYST INC
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Problems solved by technology
This additional load can make the process controller less effective, or it can cause lost or slow communications with specific field devices, as the process controller needs to prioritize which communications are necessary or desired in any particular situation
Additionally, this situation makes field devices much less effective in supporting multiple uses
Method used
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Embodiment Construction
[0046] now refer to figure 1 , generally shows a highly versatile (HV) field device 10 in block diagram form. In particular, highly versatile field device 10 includes field device hardware 12, which may be, for example, one or more sensors, actuators, valve seats and stems, or any other typical or desired control associated with the operation of the field device hardware. Control hardware 12 may be any combination of hardware typically associated with any type of control device, such as sensors (e.g., temperature sensors, flow meters, liquid level sensors, pressure sensors, etc.), valves, or other flowing gas or Liquid flow control structures, igniters, fans, motors, actuators, pumps, etc. Control hardware 12 may be, for example, a control structure that measures or senses, or controls or affects, one or more physical phenomena in a factory or manufacturing plant setting, and may be compatible with any Any control hardware associated with known control field devices.
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A node communication network of a process control or plant automation system includes nodes that are highly universal (HV) field devices that store respective tag identifications. The DHCP server assigns a corresponding endpoint identification to a node connected to the network. The network node manager manages a mapping database storing the association of the label identification of the network node with the assigned endpoint identification and a state database storing the updated state of the network node. The DNS server responds to the request of the endpoint identification in conjunction with the network node manager to allow discovery of nodes within the network. The HV device node is a data source that establishes and maintains (sometimes simultaneously) respective communication sessions over a network with one or more other nodes that are consumers of the data generated by the HV device, and the data transmitted via the communication sessions may be used to control the industrial process.
Description
technical field [0001] This application relates generally to process control and factory automation systems, and in particular to enhanced field devices for use in these systems, capable of performing a variety of different functions simultaneously in different contexts, and capable of using one or more Different communication protocols communicate with different or separate client devices or applications. Background technique [0002] Distributed process control systems, such as those used in chemical, petroleum, industrial, or other process plants to manufacture, refine, convert, generate, or produce physical materials or products, typically include one or more process Controllers that are communicatively coupled to one or more field devices via a physical layer, which may be an analog, digital, or combined analog / digital bus, or may include one or more wireless communication links or networks. Field devices, such as valves, valve positioners, switches, and transmitters (...
Claims
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Patent Timeline
Login to View More IPC IPC(8): G05B19/418
CPCG05B19/4185G05B2219/33139H04L63/062H04L63/08H04L67/12H04L61/5014H04L61/4511H04L41/12H04L43/0817H04L43/10H04L41/024H04L41/0806H04L63/166Y04S40/00Y04S40/20G05B19/418G05B19/41835G05B2219/31229
Inventor M·J·尼克松G·K·劳E·D·罗特沃尔德N·J·彼得森
Owner FISHER-ROSEMOUNT SYST INC