公开(公告)号：US06898468B2

公开(公告)日：2005-05-24

申请号：US10401655

申请日：2003-03-28

申请人： Michael Ott ,  Gary Law ,  Dennis Stevenson ,  Robert Havekost ,  Julian Naidoo ,  Godfrey R. Sherriff

发明人： Michael Ott ,  Gary Law ,  Dennis Stevenson ,  Robert Havekost ,  Julian Naidoo ,  Godfrey R. Sherriff

IPC分类号： G05B9/02 ,  G05B11/01

CPC分类号： G05B9/02

摘要： A cause and effect function block, which can be easily integrated into a function block diagram programming environment in a process plant safety system to implement the cause and effect logic specified by a traditional cause and effect matrix, includes a set of cause inputs and a set of effect outputs. A multiplexer within the cause and effect function block receives each of the cause inputs and is coupled to one or more state machines, with a separate state machine existing for each effect output. The multiplexer decodes each of the cause inputs and, based on the cause inputs and previously identified cause and effect matrix logic, provides a trip signal to one or more of the state machines. Upon receiving a trip signal, a state machine forces an associated effect output into a tripped or safe state. If desired, the state machine may then use one or more other signals, such as signals from a user or from the process, to transition between a set of different states used to safely return the process plant back to the normal operating state from the tripped or safe state.

摘要翻译： 一个因果函数块，可以轻松地集成到一个过程工厂安全系统的功能框图编程环境中，以实现由传统因果矩阵指定的因果逻辑，包括一组原因输入和一组 的效果输出。 原因和效果功能块内的多路复用器接收每个原因输入，并且耦合到一个或多个状态机，其中存在用于每个效果输出的单独的状态机。 多路复用器解码每个原因输入，并且基于原因输入和先前识别的因果矩阵逻辑，向一个或多个状态机提供跳闸信号。 在接收到跳闸信号时，状态机强制相关联的效果输出进入跳闸或安全状态。 如果需要，状态机可以然后使用一个或多个其他信号，例如来自用户或来自过程的信号，以在用于将处理设备安全地从处理器返回到正常操作状态的一组不同状态之间转换 或安全状态。

公开(公告)号：US20050055111A1

公开(公告)日：2005-03-10

申请号：US10655929

申请日：2003-09-05

申请人： Gary Law ,  Michael Ott ,  Kent Burr ,  Godfrey Sherriff ,  Julian Naidoo

发明人： Gary Law ,  Michael Ott ,  Kent Burr ,  Godfrey Sherriff ,  Julian Naidoo

IPC分类号： G06F3/048 ,  G05B9/02 ,  G05B11/01 ,  G05B19/04 ,  G05B19/042 ,  G05B19/045 ,  G05B19/048 ,  G05B19/12 ,  G05B19/418 ,  G05B23/00 ,  G05B23/02 ,  G06F3/00 ,  G06F17/00 ,  G06F17/50

CPC分类号： G05B19/045 ,  G05B19/0426 ,  G05B2219/23289 ,  G05B2219/25014 ,  G05B2219/25428 ,  Y02P90/18 ,  Y02P90/185

摘要： A control system, a safety system, etc., within a process plant may each use one or more state machine function blocks that can be easily integrated into a function block diagram programming environment. Such a state machine function block may include one or more inputs, which may or may not cause a state machine implemented by the state machine function block to change states. The state machine function block may also include a plurality of outputs. Output configuration data associated with the function block may indicate values of the outputs of the function block for each of the states of the state machine. The state machine function block may use this output configuration data to determine its outputs when in a particular state.

摘要翻译： 处理工厂内的控制系统，安全系统等可以各自使用一个或多个状态机功能块，其可以容易地集成到功能框图编程环境中。 这样的状态机功能块可以包括一个或多个输入，其可以或可以不导致由状态机功能块实现的状态机来改变状态。 状态机功能块还可以包括多个输出。 与功能块相关联的输出配置数据可以指示状态机的每个状态的功能块的输出的值。 在特定状态下，状态机功能块可以使用该输出配置数据来确定其输出。

公开(公告)号：US20060111794A1

公开(公告)日：2006-05-25

申请号：US10993072

申请日：2004-11-19

申请人： Alan Wysuph ,  Michael Ott ,  Bruce Campney ,  Cindy Scott ,  Michael Ausen ,  Gary Law ,  Godfrey Sherriff ,  David Smith ,  Julian Naidoo

发明人： Alan Wysuph ,  Michael Ott ,  Bruce Campney ,  Cindy Scott ,  Michael Ausen ,  Gary Law ,  Godfrey Sherriff ,  David Smith ,  Julian Naidoo

IPC分类号： G05B11/01 ,  G05B19/18

CPC分类号： G06F11/1497 ,  G05B2219/24167

摘要： Secure data write apparatus and methods for use in safety instrumented process control systems select a parameter associated with a process control element within the process control system and send first data associated with the parameter to the process control element. A confirmation associated with a request to write the first data to the process control element is received from a user and the second data is sent to the process control element in response to receiving the confirmation. The first and second data are compared at the process control element and the first or second data are written to a location in the process control element associated with the parameter if the first and second data are at least substantially identical.

摘要翻译： 用于安全仪表化过程控制系统的安全数据写入装置和方法选择与过程控制系统内的过程控制元件相关联的参数，并将与该参数相关联的第一数据发送到过程控制元件。 从用户接收与向处理控制单元写入第一数据的请求相关联的确认，并且响应于接收到确认将第二数据发送到过程控制单元。 如果第一和第二数据至少基本上相同，则在过程控制元件处比较第一和第二数据，并且将第一或第二数据写入到与参数相关联的过程控制元素中的位置。

公开(公告)号：US07130703B2

公开(公告)日：2006-10-31

申请号：US10409576

申请日：2003-04-08

申请人： Michael G. Ott ,  Gary Law ,  Dennis Stevenson ,  Robert Havekost ,  Godfrey Sherriff

发明人： Michael G. Ott ,  Gary Law ,  Dennis Stevenson ,  Robert Havekost ,  Godfrey Sherriff

IPC分类号： G05B11/01 ,  G05B19/42

CPC分类号： G05B9/03

摘要： A voter function block, which can be integrated into a function block diagram programming environment in a process plant control or safety system, implements voter logic in conjunction with providing operational and maintenance overrides which may be set to override individual inputs to the voter function block as well as to override the output of the voter function block. The voter function block, which is easy to create, use, test, debug and document, includes one or input limit detection units which detect if a particular redundant input has reached a specified limit indicating a condition within the process plant, an override unit that may be set by a user to override the consideration of that input in the voting function, a voting logic entity that determines if a trip condition exists based on the values of the valid or non-inhibited inputs, and an inhibit block that may used to override the output of the voter logic block during, for example, a startup or other operational condition. The voter function block may be integrated into a process control or safety system by being communicatively connected to other function blocks, such as to analog or digital input function blocks, analog or digital output function blocks, control function blocks, cause and effect function blocks which implement cause and effect logic, etc. Within the process control or safety programming environment.

摘要翻译： 投票人功能块可以集成到过程工厂控制或安全系统中的功能框图编程环境中，实施选举逻辑结合提供操作和维护覆盖，可以设置为覆盖投票人功能块的单个输入作为 以及覆盖选民功能块的输出。 易于创建，使用，测试，调试和记录的选民功能块包括一个或输入限制检测单元，其检测特定冗余输入是否已经达到指定处理工厂内的条件的指定极限;超控单元， 可以由用户设置以覆盖投票功能中对该输入的考虑;投票逻辑实体，其基于有效或非禁止输入的值来确定是否存在跳闸条件;以及禁止块，其可以用于 在例如启动或其他操作条件期间，覆盖投票人逻辑块的输出。 选举功能块可以通过通信地连接到其他功能块（诸如模拟或数字输入功能块，模拟或数字输出功能块，控制功能块，起因和效果功能块）而被集成到过程控制或安全系统中 实施因果逻辑等。在过程控制或安全编程环境中。

公开(公告)号：US08074278B2

公开(公告)日：2011-12-06

申请号：US11855312

申请日：2007-09-14

申请人： Gary Law ,  Godfrey R. Sherriff

发明人： Gary Law ,  Godfrey R. Sherriff

IPC分类号： G06F11/00 ,  G06F12/14 ,  G06F12/16 ,  G08B23/00 ,  G05B9/02

CPC分类号： H04L63/1416 ,  G05B19/0426 ,  H04L63/1441

摘要： Apparatus and methods for intrusion protection in safety instrumented process control systems are disclosed. An example method of protecting a safety instrumented system includes receiving legitimate information from a component of a process control system wherein the legitimate information is intended for delivery to a safety instrumented system, determining if a signature at least substantially matches the legitimate information, and preventing the legitimate information from reaching the safety instrumented system when it is determined that the signature at least substantially matches the legitimate information.

摘要翻译： 公开了用于安全仪表化过程控制系统中的入侵保护的装置和方法。 保护安全仪表化系统的示例性方法包括从过程控制系统的组件接收合法信息，其中合法信息旨在用于递送到安全仪表化系统，确定签名是否至少基本上匹配合法信息，并且防止 当确定签名至少基本上符合合法信息时，才能到达安全检测系统的合法信息。

公开(公告)号：US20200301388A1

公开(公告)日：2020-09-24

申请号：US16890182

申请日：2020-06-02

申请人： Larry Oscar Jundt ,  Gary Law ,  Edward McDevitt ,  Matt Stoner ,  Godfrey R. Sherriff ,  David R. Denison ,  Mark J. Nixon ,  James R. Balentine ,  J. Michael Lucas ,  Stephen Gilbert

发明人： Larry Oscar Jundt ,  Gary Law ,  Edward McDevitt ,  Matt Stoner ,  Godfrey R. Sherriff ,  David R. Denison ,  Mark J. Nixon ,  James R. Balentine ,  J. Michael Lucas ,  Stephen Gilbert

IPC分类号： G05B19/042 ,  H04L12/46 ,  H04L12/00 ,  G05B19/418 ,  G05B15/02

摘要： Process control systems for operating process plants are disclosed herein. The process control systems include control modules that are decoupled from the I/O architecture of the process plants using signal objects or generic shadow blocks. This decoupling is effected by using the signal objects or generic shadow blocks to manage at least part of the communication between the control modules and the field devices. Signal objects may convert between protocols used by control modules and field devices, thus decoupling the control modules from the I/O architecture. Generic shadow blocks may be automatically configured to mimic the operation of field devices within a controller executing the control modules, thus partially decoupling the control modules from the I/O architecture by using the shadow blocks to manage communication between the control modules and the field devices.

公开(公告)号：US20090077662A1

公开(公告)日：2009-03-19

申请号：US11855312

申请日：2007-09-14

申请人： Gary Law ,  Godfrey R. Sherriff

发明人： Gary Law ,  Godfrey R. Sherriff

IPC分类号： G06F21/00 ,  H04L9/00

CPC分类号： H04L63/1416 ,  G05B19/0426 ,  H04L63/1441

摘要： Apparatus and methods for intrusion protection in safety instrumented process control systems are disclosed. An example method of protecting a safety instrumented system includes receiving legitimate information from a component of a process control system wherein the legitimate information is intended for delivery to a safety instrumented system, determining if a signature at least substantially matches the legitimate information, and preventing the legitimate information from reaching the safety instrumented system when it is determined that the signature at least substantially matches the legitimate information.

摘要翻译： 公开了用于安全仪表化过程控制系统中的入侵保护的装置和方法。 保护安全仪表化系统的示例性方法包括从过程控制系统的组件接收合法信息，其中合法信息旨在用于递送到安全仪表化系统，确定签名是否至少基本上匹配合法信息，并且防止 当确定签名至少基本上符合合法信息时，才能到达安全检测系统的合法信息。

公开(公告)号：US11609542B2

公开(公告)日：2023-03-21

申请号：US16890182

申请日：2020-06-02

申请人： Larry Oscar Jundt ,  Gary Law ,  Edward McDevitt ,  Matt Stoner ,  Godfrey R. Sherriff ,  David R. Denison ,  Mark J. Nixon ,  James R. Balentine ,  J. Michael Lucas ,  Stephen Gilbert

发明人： Larry Oscar Jundt ,  Gary Law ,  Edward McDevitt ,  Matt Stoner ,  Godfrey R. Sherriff ,  David R. Denison ,  Mark J. Nixon ,  James R. Balentine ,  J. Michael Lucas ,  Stephen Gilbert

IPC分类号： G05B19/042 ,  G05B19/418 ,  G05B15/02 ,  H04L12/46 ,  H04L12/00

摘要： Process control systems for operating process plants are disclosed herein. The process control systems include control modules that are decoupled from the I/O architecture of the process plants using signal objects or generic shadow blocks. This decoupling is effected by using the signal objects or generic shadow blocks to manage at least part of the communication between the control modules and the field devices. Signal objects may convert between protocols used by control modules and field devices, thus decoupling the control modules from the I/O architecture. Generic shadow blocks may be automatically configured to mimic the operation of field devices within a controller executing the control modules, thus partially decoupling the control modules from the I/O architecture by using the shadow blocks to manage communication between the control modules and the field devices.

公开(公告)号：US20090076628A1

公开(公告)日：2009-03-19

申请号：US11857250

申请日：2007-09-18

申请人： David Mark Smith ,  Brandon Hieb ,  David R. Denison ,  Godfrey R. Sherriff ,  Gary Law ,  Kyle Tetmeyer

发明人： David Mark Smith ,  Brandon Hieb ,  David R. Denison ,  Godfrey R. Sherriff ,  Gary Law ,  Kyle Tetmeyer

IPC分类号： G05B19/042 ,  G06F9/44

CPC分类号： G05B19/4184 ,  G05B2219/13153 ,  G05B2219/24187 ,  G05B2219/24188 ,  G05B2219/31026 ,  G05B2219/31418 ,  G05B2219/33332 ,  G05B2219/34482 ,  G05B2219/34488 ,  G06F8/656 ,  Y02P90/14

摘要： Methods and apparatus to upgrade and provide control redundancy in process plants are disclosed. An example disclosed method to upgrade software for a control device of a process control system comprises instantiating a replacement component of the software, copying state data from an existing component to the replacement component, and changing the replacement component to an active mode when a first state of the replacement component matches a second state of the existing component.

摘要翻译： 公开了在工艺装置中升级和提供控制冗余的方法和装置。 用于升级过程控制系统的控制设备的软件的示例公开的方法包括实例化软件的替换组件，将状态数据从现有组件复制到替换组件，以及在第一状态下将替换组件改变为活动模式 的替换组件与现有组件的第二个状态相匹配。

公开(公告)号：US07330768B2

公开(公告)日：2008-02-12

申请号：US10672548

申请日：2003-09-26

申请人： Cindy Scott ,  Julian Naidoo ,  Gary Law ,  Michael G. Ott ,  Deeann Gates Del Guzzi

发明人： Cindy Scott ,  Julian Naidoo ,  Gary Law ,  Michael G. Ott ,  Deeann Gates Del Guzzi

IPC分类号： G05B9/02

CPC分类号： G05B23/0213 ,  G05B23/027 ,  Y02P90/18

摘要： A process plant includes a safety system that is physically and logically integrated with a process control system such that the safety system and the process control system can use common communication, configuration hardware and software within the process plant while still providing functional isolation between the safety system controllers and the process control system controllers. This integrated process control and safety system uses a common data communication structure for both the safety system and the process control system so that the configuration application can send data to and receive data from devices in either system in the same manner, e.g., using the same communication hardware and software. However, the common data communication structure is set up to distinguish process control system devices from safety system devices using tags, addresses or other fields within the messages sent to or received from the devices, which enables data associated with the process control system to be distinguishable from data associated with the safety system, thereby enabling a configuration application within a user interface to automatically treat this data differently depending on the source (or destination) of the data.

摘要翻译： 过程工厂包括物理和逻辑上与过程控制系统集成的安全系统，使得安全系统和过程控制系统可以在过程工厂内使用公共通信，配置硬件和软件，同时仍然在安全系统之间提供功能隔离 控制器和过程控制系统控制器。 该集成过程控制和安全系统为安全系统和过程控制系统使用通用的数据通信结构，使得配置应用程序可以以相同的方式向系统中的设备发送数据和接收数据，例如使用相同的方式 通信硬件和软件。 然而，建立公共数据通信结构以将过程控制系统设备与安全系统设备区分开，使用发送给设备或从设备接收的消息内的标签，地址或其他字段，这使得与过程控制系统相关联的数据可区分 来自与安全系统相关联的数据，从而使得用户界面内的配置应用能够根据数据的来源（或目的地）自动对待该数据。