초록 ▼

A handheld communicator wirelessly interfaces or communicates with individual devices in a process control system, such as field devices, controllers, etc., to wirelessly perform monitoring, maintenance, configuration and control activities with respect to those devices. The wireless handheld commun

A handheld communicator wirelessly interfaces or communicates with individual devices in a process control system, such as field devices, controllers, etc., to wirelessly perform monitoring, maintenance, configuration and control activities with respect to those devices. The wireless handheld communicator includes a housing adapted for handheld operation, a processing unit disposed within the housing, a computer readable memory disposed within the housing and coupled to the processing unit and a display, a keypad and a radio frequency transceiver. The handheld communicator may be adapted to communicate with a host system to receive information needed to communicate with various field devices in the process plant and may then be used to wirelessly communicate with each of the various field devices directly while in close proximity to the field devices to perform monitoring and configuration activities with respect to the field devices. Thereafter, information obtained from the field devices may be wirelessly communicated to the host system or to a repository, such as a data historian or a configuration database.

대표청구항 ▼

What is claimed is: 1. A method of communicating with a field device in a process control environment, comprising: wirelessly communicating between a handheld communicator and a repository to obtain communication information for the field device at the handheld communicator prior to communicating w

What is claimed is: 1. A method of communicating with a field device in a process control environment, comprising: wirelessly communicating between a handheld communicator and a repository to obtain communication information for the field device at the handheld communicator prior to communicating with the field device, the communication information defining communication data associated with implementing a two-way communication protocol, said communication data being useful to implement two-way wireless communications between the handheld communicator and the field device using the two-way communication protocol, wherein the field device is separately disposed within the process control environment with respect to the handheld communicator; storing the communication information in the handheld communicator; and wirelessly communicating between the handheld communicator and the field device using the communication data and the communication protocol. 2. The method of claim 1, including identifying the field device prior to wirelessly communicating between the handheld communicator and the field device. 3. The method of claim 2, wherein identifying the field device includes recognizing a radio frequency identification tag associated with the field device to identify the field device. 4. The method of claim 2, wherein wirelessly communicating between the handheld communicator and the repository includes wirelessly communicating with the repository to obtain the communication information after identifying the field device. 5. The method of claim 2, wherein identifying the field device includes automatically identifying the field device using the handheld communicator. 6. The method of claim 1, wherein storing the communication information includes storing one or more of a user interface for display on the handheld communicator to communicate with the field device, a field device description defining communications with the field device, and a communication protocol for use in communicating with the field device. 7. The method of claim 1, wherein wirelessly communicating between the handheld communicator and the field device includes requesting information from the field device and storing the requested information in a memory within the handheld communicator. 8. The method of claim 7, wherein requesting information from the field device includes requesting one of status, calibration, manufacturer, and process parameter information from the field device. 9. The method of claim 7, further including communicating with a base unit and delivering the stored requested information to the base unit 10. The method of claim 9, wherein communicating with the base unit includes wirelessly communicating with the base unit. 11. The method of claim 1, wherein wirelessly communicating between the handheld communicator and the field device includes sending configuration information to the field device. 12. The method of claim 1, wherein wirelessly communicating between the handheld communicator and the field device includes sending a control command to the field device. 13. The method of claim 1, wherein wirelessly communicating between the handheld communicator and the field device includes communicating with the field device via a radio frequency transmitter on the handheld communicator. 14. The method of claim 1, wherein wirelessly communicating between the handheld communicator and the field device includes communicating with the field device via a radio frequency transmitter disposed on the field device. 15. The method of claim 1, wherein wirelessly communicating between the handheld communicator and the field device includes communicating with the field device via a radio frequency transmitter node separate from the field device but communicatively connected to the field device via a hardwired communication connection. 16. The method of claim 1, wherein wirelessly communicating between the handheld communicator and the field device includes communicating with the field device via a radio frequency transmitter node separate from the field device but communicatively connected to the field device via a wireless communication connection. 17. A communication system for use in a process environment having a plurality of field devices distributed in a process plant, the communication system comprising: a handheld communicator disposed apart from and separately movable with respect to the plurality of field devices, the handheld communicator having a processing unit, a computer readable memory, a graphical display unit, an input device and a first wireless transceiver; and a second wireless transceiver disposed in the process environment and communicatively coupled to at least one of the plurality of field devices; wherein the handheld communicator further includes a communication routine stored in the memory and adapted to be executed on the processing unit to wirelessly retrieve communication information from a database repository disposed apart from the handheld communicator, wherein the communication information includes data for communicating with the at least one of the plurality of field devices, and to store the communication information in the memory, and wherein the communication routine is further executable on the processing unit to perform two-way wireless communications with the at least one of the plurality of field devices through the first and second transceivers using the communication information. 18. The communication system of claim 17, wherein the second wireless transceiver is disposed on the at least one of the plurality of field devices. 19. The communication system of claim 17, wherein the second wireless transceiver is disposed apart from the at least one of the plurality of field devices but is connected to the at least one of the plurality of field devices via a hardwired communication connection. 20. The communication system of claim 19, wherein the second wireless transceiver is connected to the at least one of the plurality of field devices via a bus-type communication connection. 21. The communication system of claim 19, wherein the second wireless transceiver is connected to the one of the plurality of field devices via a point-to-point hardwired communication connection. 22. The communication system of claim 17, wherein the second wireless transceiver is disposed apart from the at least one of the plurality of field devices and is connected to the at least one of the plurality of field devices via a secondary wireless communication connection. 23. The communication system of claim 17, wherein the first and second wireless transceivers are radio frequency transceivers. 24. The communication system of claim 17, wherein the handheld communicator includes a secondary receiver adapted to wirelessly receive one or more signals from an additional transmitter disposed within the process. 25. The communication system of claim 24, wherein the secondary receiver is an infrared receiver. 26. The communication system of claim 17, wherein the handheld communicator stores one or more user interface screens in the memory for use in communicating with a user to assist in communicating with the at least one of the plurality of field devices. 27. The communication system of claim 17, wherein the handheld communicator stores a communication routine adapted to communicate with a base unit disposed in the process environment via the first transceiver. 28. The communication system of claim 17, wherein the handheld communicator includes an identification routine stored on the memory and executable on the processor to identify ones of the plurality of field devices and wherein the communication information is retrieved from the repository based on the identity of the ones of the field devices. 29. The communication system of claim 28, wherein the identification routine, when executed identifies one of the plurality of field devices using a radio frequency identification tag. 30. The communication system of claim 28, wherein the identification routine, when executed, identifies one of the plurality of field devices using an optical recognition technique. 31. The communication system of claim 28, wherein the identification routine, when executed, identifies one of the plurality of field devices using a sound processing recognition technique. 32. The communication system of claim 17, wherein the handheld communicator further includes a hardwire communication connection adapted to be temporarily connected to the at least one of the plurality of field devices or to a base unit to perform communication with the at least one of the plurality of field devices or the base unit. 33. The communication system of claim 17, wherein the handheld communicator is reconfigurable to be able to communicate at different times with different ones of the plurality of field devices using different communication protocols. 34. A communication system for use in a process environment, comprising: a plurality of field devices distributed in the process environment for performing one or more process control or measurement activities within the process environment; a first wireless transceiver disposed in the process environment and communicatively connected to at least one of the plurality of field devices; a handheld communicator having a processing unit, a computer readable memory, a graphical display unit, an input device, and a second wireless transceiver, the handheld communicator further including a communication routine to be executed on the processing unit to wirelessly retrieve, from a repository, communication information that includes data for use in communicating with the at least one of the plurality of field devices based on an identity associated with the at least one of the plurality of field devices and to store the communication information in the memory, and wherein the communication routine is further executable on the processing unit to perform two-way wireless communications with the at least one of the plurality of field devices through the first and second transceivers using the communication in formation. 35. The communication system of claim 34, wherein the first wireless transceiver is disposed on the at least one of the plurality of field devices. 36. The communication system of claim 35, wherein the first wireless transceiver is disposed apart from the at least one of the plurality of field devices but is connected to the at least one of the plurality of field devices via a hardwired communication connection. 37. The communication system of claim 36, wherein the first wireless transceiver is connected to the at least one of the plurality of field devices via a bus-type communication connection. 38. The communication system of claim 35, first wireless transceiver is disposed apart from the at least one of the plurality of field devices and is connected to the at least one of the plurality of field devices via a secondary wireless communication connection. 39. The communication system of claim 35, wherein the handheld communicator is adapted store two different sets of communication information that define manners of communicating with two or more different ones of the plurality of field devices. 40. The communication system of claim 39, wherein each of the two different sets of communication information includes different user interfaces to be displayed on the display unit of the handheld communicator for use by a user when communicating with the two or more different ones of the plurality of field devices.