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1. 发明授权

US06088665A Schematic generator for use in a process control network having distributed control functions 失效
标题翻译：用于具有分布式控制功能的过程控制网络中的示意图发生器
公开(公告)号：US06088665A
公开(公告)日：2000-07-11
申请号：US962630
申请日：1997-11-03
申请人： Harry A. Burns , Brent H. Larson , Larry K. Brown
发明人： Harry A. Burns , Brent H. Larson , Larry K. Brown
IPC分类号： G05B17/02 , G05B19/042 , G05B19/418 , G06F17/50 , G06F15/173
CPC分类号： G05B19/41865 , G05B19/0426 , G05B2219/25428 , Y02P90/18 , Y02P90/20
摘要： A schematic generator for use in a process control network, in which control functions are implemented by field devices interconnected at various and distributed locations on a bus, polls each of the field devices to retrieve information pertaining to the identity of the device, the identity of the control functions associated with the device, the manner in which the device communicates with other devices with respect to each of the control functions associated with that device, the timing associated with the execution of each of the control functions of that device and the timing of the communication activities associated with each of the control functions of that device. The schematic generator then analyses the retrieved data to identify the manner in which the devices are physically connected on the bus and the manner in which the different control functions are interconnected over the bus to perform process control loops within the process control network. Thereafter, the schematic generator creates one or more schematics, such a maintenance schematic illustrating the physical layout of the field devices in the process control network, a control loop schematic illustrating the interconnections between functions within one or more of the deceives that form a control loop, and a timing schematic illustrating the timing of or the amount of communications occurring on the bus.
摘要翻译：一种在过程控制网络中使用的示意图发生器，其中控制功能由在总线上的各种和分布位置处互连的现场设备实现，轮询每个现场设备以检索与设备的身份相关的信息，与设备相关联的控制功能，设备与其他设备相对于与该设备相关联的每个控制功能通信的方式，与该设备的每个控制功能的执行相关联的定时以及该设备的定时与该设备的每个控制功能相关联的通信活动。原理图生成器然后分析检索的数据以识别设备在总线上物理连接的方式以及不同控制功能通过总线互连的方式，以在过程控制网络内执行过程控制环路。此后，原理图生成器创建一个或多个原理图，这样的维护原理图示出了过程控制网络中的现场设备的物理布局;控制回路原理图，示出了形成控制回路的一个或多个欺骗中的功能之间的互连以及示出在总线上发生的通信的定时或通信量的时序图。

2. 发明授权

US06377859B1 Maintenance interface device for a use in a process control network 失效
标题翻译：用于过程控制网络的维护接口设备
公开(公告)号：US06377859B1
公开(公告)日：2002-04-23
申请号：US08983018
申请日：1997-12-30
申请人： Larry K. Brown , Brent H. Larson , Harry A. Burns
发明人： Larry K. Brown , Brent H. Larson , Harry A. Burns
IPC分类号： G05B902
CPC分类号： H04L12/40013 , G05B19/4185 , G05B23/0227 , G05B23/0256 , Y02P90/18
摘要： A maintenance interface device for use in a digital, loop-powered process control network includes an interface to either a two-wire input/output port of a field device or to a two-wire communication media, a control logic for determining a simple status of the field device or communication loop, and a display for displaying the simple status. The maintenance interface device may be used for fault analysis to detect whether a field device or a communication loop is operational or nonoperational, powered or unpowered, and generating a valid communication signal or generating an invalid communication signal. The maintenance interface device is adapted to perform simple functionality tests on a plurality of devices in a process control network including a loop controller, a digital control system, an operator console, a workstation, a personal computer, and a bridge to thereby detect the functionality of those devices on a communication wire. The maintenance interface device is self-powered, powered from the device under service, or powered from a communication media such as a bus.
摘要翻译：用于数字环路供电过程控制网络的维护接口设备包括到现场设备的两线输入/输出端口或两线通信介质的接口，用于确定简单状态的控制逻辑的现场设备或通信环路，以及用于显示简单状态的显示器。维护接口设备可以用于故障分析以检测现场设备或通信环路是可操作的还是非操作的，供电的或无电源的，并且产生有效的通信信号或产生无效的通信信号。维护接口设备适于在包括循环控制器，数字控制系统，操作员控制台，工作站，个人计算机和桥接器的过程控制网络中的多个设备上执行简单的功能测试，从而检测功能通信线上的那些设备。维护接口设备是自供电的，从正在使用的设备供电，或由诸如总线的通信介质供电。

3. 发明授权

US6026352A Local device and process diagnostics in a process control network having distributed control functions 有权
标题翻译：具有分布式控制功能的过程控制网络中的本地设备和过程诊断
公开(公告)号：US6026352A
公开(公告)日：2000-02-15
申请号：US167766
申请日：1998-10-07
申请人： Harry A. Burns , Brent H. Larson , Larry K. Brown
发明人： Harry A. Burns , Brent H. Larson , Larry K. Brown
IPC分类号： G05B19/02 , G05B19/042 , G05B19/418
CPC分类号： G05B19/0425 , G05B19/4185 , G05B2219/25428 , G05B2219/31211 , G05B2219/33326 , G05B2219/33331 , G05B2219/34427 , Y02P90/18
摘要： A field device for use in a process control network having a plurality of devices communicatively coupled by a two-wire, all-digital communication bus includes a connector that connects the field device to the two-wire, all-digital bus to enable all-digital communication over the bus, a memory that stores a diagnostic test routine having a series of device or process diagnostic test instructions, and a controller that performs the device or process diagnostic test instructions stored in the memory to implement a device or process diagnostic test using the field device. A data collection unit within the field device collects diagnostic data generated during the diagnostic test and a communication unit communicates the collected diagnostic data over the bus to a host device for processing. The controller may include a program language interpreter adapted to interpret the diagnostic test instructions which may be provided to the field device from another one of the devices via the bus.
摘要翻译：用于具有通过双线全数字通信总线通信耦合的多个设备的过程控制网络的现场设备包括将现场设备连接到两线全数字总线的连接器，通过总线的数字通信，存储具有一系列设备或过程诊断测试指令的诊断测试例程的存储器，以及执行存储在存储器中的设备或过程诊断测试指令以执行设备或过程诊断测试的控制器，以使用现场设备。现场设备内的数据收集单元收集在诊断测试期间产生的诊断数据，并且通信单元通过总线将收集的诊断数据传送到主机设备进行处理。控制器可以包括程序语言解释器，其适于解释可以经由总线从另一个设备提供给现场设备的诊断测试指令。

4. 发明授权

US06192281B1 Network accessible interface for a process control network 失效
标题翻译：用于过程控制网络的网络可访问接口
公开(公告)号：US06192281B1
公开(公告)日：2001-02-20
申请号：US08983017
申请日：1997-12-30
申请人： Larry K. Brown , Harry A. Burns , Brent H. Larson
发明人： Larry K. Brown , Harry A. Burns , Brent H. Larson
IPC分类号： G05B1500
CPC分类号： G05B19/4185 , G05B19/0425 , G05B2219/25139 , G05B2219/25274 , G05B2219/25428 , G05B2219/31121 , Y02P90/18 , Y02P90/86
摘要： An interface between a remote communications network and a process control system includes a storage device, a communication software stack and a user software layer. The user software layer enables interfacing between the remote communications network and the process control system by directing the communication software stack to operate in the process control system using a process communication protocol, by monitoring the message traffic on the communication software stack, and by copying requested message traffic to the storage device. The user software layer also includes media interface software that allows access to the storage device by the remote communications network to thereby deliver specific data to a device connected to the remote communications network.
摘要翻译：远程通信网络和过程控制系统之间的接口包括存储设备，通信软件堆栈和用户软件层。用户软件层通过指示通信软件堆栈使用过程通信协议在过程控制系统中操作，通过监视通信软件堆栈上的消息业务，并通过复制请求，来实现远程通信网络和过程控制系统之间的接口消息流量到存储设备。用户软件层还包括允许远程通信网络访问存储设备从而将特定数据传送到连接到远程通信网络的设备的媒体接口软件。

5. 发明授权

US06285966B1 Function block apparatus for viewing data in a process control system 失效
标题翻译：用于在过程控制系统中观看数据的功能块装置
公开(公告)号：US06285966B1
公开(公告)日：2001-09-04
申请号：US09105333
申请日：1998-06-25
申请人： Larry K. Brown , Brent H. Larson , Harry A. Burns
发明人： Larry K. Brown , Brent H. Larson , Harry A. Burns
IPC分类号： G06F1500
CPC分类号： G05B19/4185 , G05B19/0425 , G05B19/406 , G05B2219/25428 , G05B2219/31121 , G05B2219/31122 , G05B2219/31135 , G05B2219/31436 , G05B2219/31455 , Y02P90/18 , Y02P90/20
摘要： The present invention is directed to a method of and a device for monitoring, from a central location, the current operating conditions (such as values of process parameters) in a process control network having distributed control functions. In one embodiment, the method and device of the present invention use scheduled periodic communications to send signals containing, for example, measured values of process parameters developed by field devices to a centralized viewing device. The viewing device receives the signals and stores at least one value of the process parameters, and maybe more values if necessary to monitor and control the process. To retrieve the stored process parameters for viewing, the viewing device processes messages from human interface devices requesting the stored values of one or more of the stored parameters and then transmits response messages containing the stored values. The human interface device may be the same device as the viewing device, or may be a separate device that communicates with the viewing device using either the same or a different communication protocol as that used by the field devices to communicate with the viewing device. Additionally, the request and response messages may be sent between the devices using unscheduled queued communications.
摘要翻译：本发明涉及一种用于从中心位置监测具有分布式控制功能的过程控制网络中的当前操作条件（诸如过程参数的值）的方法和设备。在一个实施例中，本发明的方法和装置使用调度的周期性通信来发送包含例如由现场设备开发的过程参数的测量值的信号到集中式观察设备。观察装置接收信号并存储过程参数的至少一个值，并且如果必要的话可能需要更多的值来监视和控制过程。为了检索存储的用于查看的过程参数，观看设备处理来自人接口设备的消息，请求存储参数中的一个或多个的存储值，然后发送包含存储的值的响应消息。人机接口设备可以是与观看设备相同的设备，或者可以是使用与现场设备用于与观看设备通信的相同或不同的通信协议与观看设备进行通信的单独设备。此外，请求和响应消息可以使用非计划的排队通信在设备之间发送。

6. 发明授权

US6014612A Remote diagnostics in a process control network having distributed control functions 失效
标题翻译：具有分布式控制功能的过程控制网络中的远程诊断
公开(公告)号：US6014612A
公开(公告)日：2000-01-11
申请号：US944088
申请日：1997-10-02
申请人： Brent H. Larson , Harry A. Burns , Larry K. Brown
发明人： Brent H. Larson , Harry A. Burns , Larry K. Brown
IPC分类号： G06F15/177 , G05B23/02 , G06F11/22 , G06F11/30 , G05B11/01 , G06F13/14 , G21C17/00
CPC分类号： G06F11/22
摘要： A diagnostic system is adapted to perform device and process diagnostics in a process control network having a plurality of process control devices communicatively linked over a bus, wherein each of the devices is capable of preforming a process control function and of communicating over the bus using scheduled periodic communications. The diagnostic system is disposed in a first one of the devices and includes a signal generator that produces a diagnostic control signal, a communicator configured to deliver the diagnostic control signal to a second one of the devices using scheduled periodic communications, and an output signal receiver adapted to receive an output signal developed by the second device in response to the diagnostic control signal. The diagnostic system may use the received output signal to perform diagnostics or may send this signal to a host device for diagnostic analysis.
摘要翻译：诊断系统适于在具有通过总线通信地链接的多个过程控制设备的过程控制网络中执行设备和过程诊断，其中每个设备能够执行过程控制功能并且通过总线使用调度定期沟通。所述诊断系统设置在所述装置的第一装置中，并且包括产生诊断控制信号的信号发生器，被配置为使用调度的周期性通信将所述诊断控制信号传送到所述装置中的第二装置的通信器，以及输出信号接收器适于响应于诊断控制信号接收由第二设备开发的输出信号。诊断系统可以使用接收到的输出信号来执行诊断，或者可以将该信号发送到主机设备进行诊断分析。

7. 发明授权

US6047222A Process control network with redundant field devices and buses 失效
标题翻译：具有冗余现场设备和总线的过程控制网络
公开(公告)号：US6047222A
公开(公告)日：2000-04-04
申请号：US983019
申请日：1997-12-30
申请人： Harry A. Burns , Brent H. Larson , Larry K. Brown
发明人： Harry A. Burns , Brent H. Larson , Larry K. Brown
IPC分类号： G05B19/04 , G05B19/418 , G06F15/177 , G05B9/02
CPC分类号： G05B19/4184 , G05B19/41855 , G05B2219/24175 , G05B2219/24182 , G05B2219/31121 , G05B2219/31245 , Y02P90/14 , Y02P90/185
摘要： Functional elements within a two-wire, loop-powered, two-way digital communications environment are interconnected using selective redundant connections and selective redundant functional elements. The redundant functional elements and redundant connections provide a smooth transition from operation of a primary process loop element to a secondary process loop element in the event of a failure of the primary process loop element. Redundancy is selectively implemented using a redundant pair of field devices or a redundant bus pair having a primary bus and a redundant bus. In a first case, redundancy is selectively implemented using a single set of communication media, such as a single communication loop, but implementing redundant functional elements, such as field devices, so that recovery is achieved upon failure of a functional element but not upon failure of the communication media. In a second case, redundancy is selectively implemented using a redundant set of communication media in addition to use of redundant devices so that recovery is attained both for a failing device and a failing communication media. In a third case, redundancy is selectively implemented using a redundant set of communication media but using a single device so that recovery is attained for a failing communication media but not for a failing device.
摘要翻译： PCT No.PCT / US97 / 17983 Sec。 371日期1997年12月30日 102（e）1997年12月30日PCT PCT 1997年10月3日PCT公布。 WO96 / 12993 PCT出版物日期1996年5月2日两线环路供电的双向数字通信环境中的功能元件使用选择性冗余连接和选择性冗余功能元件进行互连。冗余功能元件和冗余连接在主过程环路元件发生故障的情况下提供从主过程环路元件的操作到辅助过程回路元件的平滑过渡。使用冗余现场设备对或具有主总线和冗余总线的冗余总线对来选择性地实现冗余。在第一种情况下，使用单一通信介质（例如单个通信环路）来选择性地实现冗余，但是实现诸如现场设备的冗余功能元件，使得在功能元件故障时而不是故障时实现恢复的通讯媒体。在第二种情况下，除了使用冗余设备之外，还使用冗余的通信介质集来选择性地实现冗余，从而为故障设备和故障通信介质实现恢复。在第三种情况下，使用冗余的通信介质集合来选择性地实现冗余，但是使用单个设备，使得对于故障通信介质而不是为了故障设备而实现恢复。

8. 发明授权

US6044305A Method and apparatus for debugging and tuning a process control network having distributed control functions 失效
标题翻译：用于调试和调整具有分布式控制功能的过程控制网络的方法和装置
公开(公告)号：US6044305A
公开(公告)日：2000-03-28
申请号：US983020
申请日：1997-12-30
申请人： Brent H. Larson , Harry A. Burns , Larry K. Brown
发明人： Brent H. Larson , Harry A. Burns , Larry K. Brown
IPC分类号： G05B19/02 , G05B19/418 , G05B19/42
CPC分类号： G05B19/4184 , G05B19/4185 , G05B2219/31113 , G05B2219/31119 , G05B2219/31121 , G05B2219/31211 , G05B2219/33273 , G05B2219/33326 , G05B2219/34427 , G05B2219/45226 , Y02P90/14 , Y02P90/18 , Y02P90/20
摘要： A system and method for debugging and tuning a process control network having distributed control functions implemented by a set of field devices communicatively linked over a bus includes an operational scheduler that schedules the execution of each of a number of process control functions and communication functions performed by the field devices to define a process control scheme and an indicator that indicates one or more process control scheme locations at which the process control scheme is to be automatically or conditionally interrupted to thereby enable debugging and/or tuning of the process control network. A controller interrupts execution of the process control scheme at the indicated flow locations, communicates process data to a user to display the current or a past state of the process to a user and waits for user input before continuing with operation of the process control scheme. In a tuning mode, the controller delivers data pertaining to a process parameter to a tuning device or to a user which determines a new tuning parameter, such as a gain, to be used within the process control scheme based on the process parameter data.
摘要翻译： PCT No.PCT / US97 / 17343 Sec。 371日期1997年12月30日 102（e）日期1997年12月30日PCT 1997年9月6日PCT公布。第WO98 / 14851号公报日期1998年9月4日一种用于调试和调整具有由通过总线通信地链接的一组现场设备实现的分布式控制功能的过程控制网络的系统和方法包括：操作调度器，其调度多个过程控制功能中的每一个的执行以及由现场设备执行的定义过程控制方案的通信功能和指示过程控制方案将被自动或有条件地中断的一个或多个过程控制方案位置的指示符，从而能够调试和/或调整过程控制网络。 A控制器在所指示的流程位置中断执行过程控制方案，将过程数据传送给用户以向用户显示过程的当前状态或过去状态，并在继续操作过程控制方案之前等待用户输入。在调谐模式中，控制器将与处理参数相关的数据传送到调谐装置或用户，其基于过程参数数据确定要在过程控制方案内使用的新的调谐参数（例如增益）。

9. 发明授权

US5970430A Local device and process diagnostics in a process control network having distributed control functions 失效
公开(公告)号：US5970430A
公开(公告)日：1999-10-19
申请号：US922938
申请日：1997-09-03
申请人： Harry A. Burns , Brent H. Larson , Larry K. Brown
发明人： Harry A. Burns , Brent H. Larson , Larry K. Brown
IPC分类号： G05B19/02 , G05B19/042 , G05B19/418 , G06F15/40 , G06F11/30
CPC分类号： G05B19/0425 , G05B19/4185 , G05B2219/25428 , G05B2219/31211 , G05B2219/33326 , G05B2219/33331 , G05B2219/34427 , Y02P90/18
摘要： A field device for use in a process control network having a plurality of devices communicatively coupled by a two-wire, all-digital communication bus includes a connector that connects the field device to the two-wire, all-digital bus to enable all-digital communication over the bus, a memory that stores a diagnostic test routine having a series of device or process diagnostic test instructions, and a controller that performs the device or process diagnostic test instructions stored in the memory to implement a device or process diagnostic test using the field device. A data collection unit within the field device collects diagnostic data generated during the diagnostic test and a communication unit communicates the collected diagnostic data over the bus to a host device for processing. The controller may include a program language interpreter adapted to interpret the diagnostic test instructions which may be provided to the field device from another one of the devices via the bus.

10. 发明授权

US06382226B1 Method for detecting broken valve stem 有权
标题翻译：破坏阀杆检测方法
公开(公告)号：US06382226B1
公开(公告)日：2002-05-07
申请号：US09836307
申请日：2001-04-17
申请人： Brent H. Larson , Harry A. Burns , Larry Keith Brown
发明人： Brent H. Larson , Harry A. Burns , Larry Keith Brown
IPC分类号： F16K3700
CPC分类号： F16K37/0041 , F16K37/0083 , F16K37/0091 , Y10T137/0318 , Y10T137/7759 , Y10T137/7761 , Y10T137/8175 , Y10T137/8242
摘要： A method for providing an indication and alarm of a possible failure in a fluid control valve stem, plug or seat in a process control system having a microprocessor based valve positioner. The drive pressure, drive signal and valve position feedback are monitored. If greater than a predetermined change in the drive pressure or the valve position feedback is detected, then a second series of detection steps is initiated. In the second detection steps the present set point to process value relationship, such as flow rate or other process variable is compared to a stored test cycle derived set point to process value relationship for the same set point. If there is a process value change, then the operator is alerted as this change may indicate there is a damaged valve stem, plug, or seat problem which needs to be inspected.
摘要翻译：一种用于在具有基于微处理器的阀门定位器的过程控制系统中的流体控制阀杆，塞子或座椅中提供可能故障的指示和报警的方法。监控驱动压力，驱动信号和阀位反馈。如果检测到大于驱动压力或阀位置反馈的预定变化，则启动第二系列检测步骤。在第二检测步骤中，将当前设定点到过程值关系，例如流量或其他过程变量与存储的测试循环导出的设定点进行比较，以达到相同设定点的过程值关系。如果有过程值更改，则会警告操作员，因为此更改可能指示需要检查的阀杆，插头或座椅问题受损。

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