Field device in a process control system using wireless radio communications to transmit and receive sense and control signals
First Claim
1. A process control system for use within a process control environment, comprising:
- a process control field device;
a control device for receiving a sense signal from or providing a control signal to the process control field device;
a first wireless radio frequency transceiver communicatively connected to the process control field device; and
a second wireless radio frequency transceiver communicatively connected to a second process control field device or to the control device;
wherein the first wireless radio frequency transceiver communicates with the second wireless radio frequency transceiver using a bus protocol.
2 Assignments
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Accused Products
Abstract
An apparatus provides wireless communication between multiple devices within a process control system, such as between field devices, control units, user terminals, controllers, etc., using a wireless bus protocol. In one embodiment, a process control system for use within a process control environment includes a plurality of process control field devices that operate within the process environment, and a control device adapted to receive a sense signal from or to provide a control signal to one or more of the plurality of process control field devices. First and second wireless transceivers are communicatively connected to different ones of the process control field devices and the control device and communicate with one another using a bus protocol, to thereby provide wireless communications within the process control system.
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Citations
28 Claims
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1. A process control system for use within a process control environment, comprising:
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a process control field device; a control device for receiving a sense signal from or providing a control signal to the process control field device; a first wireless radio frequency transceiver communicatively connected to the process control field device; and a second wireless radio frequency transceiver communicatively connected to a second process control field device or to the control device; wherein the first wireless radio frequency transceiver communicates with the second wireless radio frequency transceiver using a bus protocol. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A communication system for use in a process control system within a process control environment having a plurality of process control field devices that operate within the process control environment and a control unit for providing signals to or receiving signals from the plurality of process control field devices, the communication system comprising:
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a first wireless radio frequency transceiver communicatively connected to a first one of the plurality of process control field devices; and a second wireless radio frequency transceiver communicatively connected to a second one of the plurality of process control field devices or to the control unit; wherein the first wireless radio frequency transceiver communicates signals to or receives signals from the second wireless radio frequency transceiver using a bus protocol. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. A method of communicating within a process control environment having a plurality of process control field devices for sensing or altering parameters within the process control environment and a control unit for receiving a signal from or providing a signal to one or more of the plurality of process control field devices, the method comprising:
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connecting a first wireless radio frequency transceiver to a first one of the plurality of process control field devices; connecting a second wireless radio frequency transceiver to a second one of the plurality of process control field devices or to the control unit; and wirelessly communicating a radio frequency signal between the first wireless radio frequency transceiver and the second wireless radio frequency transceiver using a bus communication protocol. - View Dependent Claims (23, 24, 25, 26, 27, 28)
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Specification