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    • 1. 发明授权
    • Communication bus suitable for use in a hazardous area of a process plant
    • 通信总线适用于过程工厂的危险区域
    • US07684167B2
    • 2010-03-23
    • US10675446
    • 2003-09-30
    • Kent A. BurrGary K. LawTom Aneweer
    • Kent A. BurrGary K. LawTom Aneweer
    • H02H1/00
    • H02H9/008
    • A communication bus suitable for use in a hazardous area of a process plant includes a first transmission path adapted to communicate electrical signals in a first direction, and a second transmission path adapted to communicate electrical signals in a second direction. A safety device is coupled to each of the first and second transmission paths and includes a control unit adapted to detect a fault condition associated with the communication bus. The safety device further includes a switch unit adapted to interrupt the flow of electrical signals along each of the first and second transmission paths in response to the detected fault condition. In this manner, the detection circuitry of the communication bus automatically reduces or prevents the occurrence of sparks or arcing in the event of a fault condition associated with the communication bus.
    • 适用于过程工厂的危险区域的通信总线包括适于在第一方向上传送电信号的第一传输路径和适于在第二方向上传送电信号的第二传输路径。 安全装置耦合到第一和第二传输路径中的每一个,并且包括适于检测与通信总线相关联的故障状况的控制单元。 安全装置还包括开关单元,其适于响应于检测到的故障状况中断沿着第一和第二传输路径中的每一个的电信号的流动。 以这种方式,通信总线的检测电路在与通信总线相关的故障状况的情况下自动地减少或防止火花或电弧的发生。
    • 2. 发明授权
    • Process control system with an embedded safety system
    • 具有嵌入式安全系统的过程控制系统
    • US07289861B2
    • 2007-10-30
    • US10352396
    • 2003-01-28
    • Tom AneweerKent A. BurrLarry O. JundtGary K. LawMarty J. LewisJulian K. NaidooMichael G. Ott
    • Tom AneweerKent A. BurrLarry O. JundtGary K. LawMarty J. LewisJulian K. NaidooMichael G. Ott
    • G06F19/00G06F11/00
    • G05B23/027
    • A process plant includes a process control system having a safety system embedded therein. The integrated process control and safety system includes a host computer arranged to send and receive process level messages and safety level messages, a controller operatively connected to the host computer by a first communication network, at least one first input/output device adapted for operative communication with at least one process control field device, and at least one second input/output device adapted for operative communication with at least one safety-related field device. The first and second input/output devices are operatively connected to the controller via a second communication bus. The second input/output device includes a processor programmed to monitor both the process level messages and the safety level messages, to distinguish the process level messages from safety level messages, to select the safety level messages and to communicate with the safety-related field device based on the safety level messages.
    • 过程工厂包括具有嵌入其中的安全系统的过程控制系统。 集成过程控制和安全系统包括主计算机,其被布置为发送和接收过程级别消息和安全级别消息,通过第一通信网络操作地连接到主计算机的控制器,适于操作通信的至少一个第一输入/输出设备 至少一个过程控制现场设备,以及适于与至少一个与安全相关的现场设备的操作性通信的至少一个第二输入/输出设备。 第一和第二输入/输出设备经由第二通信总线可操作地连接到控制器。 第二输入/输出设备包括被编程为监视过程级别消息和安全级别消息的处理器,以将过程级别消息与安全级别消息区分开来,以选择安全级别消息并与安全相关的现场设备 基于安全级别的消息。
    • 7. 发明申请
    • INTEGRATED BUS CONTROLLER AND POWER SUPPLY DEVICE FOR USE IN A PROCESS CONTROL SYSTEM
    • 集成总线控制器和用于过程控制系统的电源设备
    • US20110131455A1
    • 2011-06-02
    • US12873853
    • 2010-09-01
    • Gary K. LawKent A. BurrMichael L. MarshallMichael Kessler
    • Gary K. LawKent A. BurrMichael L. MarshallMichael Kessler
    • G06F1/26G06F11/26
    • H04B3/548H04B2203/5458H04L12/40013H04L25/0266H04L25/0278H04L25/0298Y02P90/18
    • An integrated bus controller and power supply device includes a typical or standard bus controller and a bus power supply disposed in a common housing, the size and external configuration of which may match a standard bus controller device associated with a typical I/O communication network. The bus controller may store and implement one or more control routines using one or more field devices connected to the I/O communication network while the bus power supply generates and provides the appropriate power signal to the bus of the I/O communication network, the power signal being used to power the field devices connected to the I/O communication network. The integrated bus controller and power supply device can be easily connected to the bus of the I/O communication network to provide both bus controller functionality and bus power supply functionality on the I/O communication network, without the need of configuring and attaching separate, dedicated bus controller and power supply devices to the bus and having to wire these devices together using multiple different terminal blocks.
    • 集成总线控制器和电源装置包括典型的或标准的总线控制器和布置在公共壳体中的总线电源,其大小和外部配置可以与与典型I / O通信网络相关联的标准总线控制器设备匹配。 总线控制器可以使用连接到I / O通信网络的一个或多个现场设备来存储和实现一个或多个控制例程,同时总线电源产生并且向I / O通信网络的总线提供适当的功率信号, 电源信号用于为连接到I / O通信网络的现场设备供电。 集成总线控制器和电源设备可以方便地连接到I / O通信网络的总线,以在I / O通信网络上提供总线控制器功能和总线电源功能,而无需配置和附加单独的, 专用总线控制器和电源设备到总线,并且必须使用多个不同的接线端子将这些设备连接在一起。
    • 9. 发明授权
    • Highly versatile process control system controller
    • 高度通用的过程控制系统控制器
    • US07181550B2
    • 2007-02-20
    • US11272363
    • 2005-11-10
    • Rusty ShepardKenneth D. KrivosheinDaniel Dean ChristensenGary K. LawKent A. BurrMark J. Nixon
    • Rusty ShepardKenneth D. KrivosheinDaniel Dean ChristensenGary K. LawKent A. BurrMark J. Nixon
    • G06F3/00G06F13/00
    • G05B19/042G05B2219/25014G05B2219/25252G05B2219/25428
    • A versatile controller that can be used as either a stand-alone controller in a relatively small process plant or as one of numerous controllers in a distributed process control system depending on the needs of the process plant includes a processor adapted to be programmed to execute one or more programming routines and a memory, such as a non-volatile memory, coupled to the processor and adapted to store the one or more programming routines to be executed on the processor. The versatile controller also includes a plurality of field device input/output ports communicatively connected to the processor, a configuration communication port connected to the processor and to the memory to enable the controller to be configured with the programming routines and a second communication port which enables a user interface to be intermittently connected to the controller to view information stored within the controller memory. When used in a distributed process control system, the controller platform may be used as a remote input/output device and the ports of this remote input/output device may be logically mapped to controllers within the distributed process control system in a manner that is different than the physical connection between such controllers and the remote input/output device.
    • 可以在相对小的过程工厂中用作独立控制器的多功能控制器或者根据过程工厂的需要在分布式过程控制系统中的众多控制器之一,包括一个适于被编程为执行一个 或更多的编程例程和诸如非易失性存储器的存储器,其耦合到处理器并且适于存储要在处理器上执行的一个或多个编程例程。 通用控制器还包括通信地连接到处理器的多个现场设备输入/输出端口,连接到处理器的配置通信端口和存储器,以使得控制器能够配置有编程例程,并且第二通信端口使能 要间歇地连接到控制器以查看存储在控制器存储器内的信息的用户界面。 当在分布式过程控制系统中使用时,控制器平台可以用作远程输入/输出设备,并且该远程输入/输出设备的端口可以以不同的方式逻辑地映射到分布式过程控制系统内的控制器 这些控制器和远程输入/输出设备之间的物理连接。
    • 10. 发明授权
    • Digital video recording and playback of user displays in a process control system
    • 在过程控制系统中数字视频录制和回放用户显示
    • US09042708B2
    • 2015-05-26
    • US12415732
    • 2009-03-31
    • John M. CaldwellMarty J. LewisGary K. Law
    • John M. CaldwellMarty J. LewisGary K. Law
    • H04N5/92G05B23/02
    • G05B23/0264
    • A process control system user display provides a display image containing control system information. The system may include a digital recording module including an image capture module for making a real-time digital recording of at least a portion of the display image, the image capture module buffering a terminal portion of the real-time digital recording. A storage module may store at least a portion of the real-time digital recording. A real-time digital recording may contain at least a portion of the display image, wherein, at any particular time, the real-time digital recording includes information from the control system for a predetermined duration proximate the particular time, and at least a portion of the real-time digital recording may be stored. A desired portion of the digital recording may be played back, optionally with process control system event and/or continuous history.
    • 过程控制系统用户显示器提供包含控制系统信息的显示图像。 该系统可以包括数字记录模块,其包括用于对显示图像的至少一部分进行实时数字记录的图像捕获模块,图像捕获模块缓冲实时数字记录的终端部分。 存储模块可以存储实时数字记录的至少一部分。 实时数字记录可以包含显示图像的至少一部分,其中在任何特定时间,实时数字记录包括来自控制系统的信息在特定时间附近的预定持续时间,以及至少一部分 可以存储实时数字记录。 数字记录的期望部分可以被播放,任选地具有过程控制系统事件和/或连续历史。