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    State machine function block with a user modifiable state transition configuration database
    1.
    发明授权
    State machine function block with a user modifiable state transition configuration database 有权
    状态机功能块与用户可修改的状态转换配置数据库

    公开(公告)号：US08600524B2

    公开(公告)日：2013-12-03

    申请号：US12767534

    申请日：2010-04-26

    申请人： Gary K. Law ,  Michael G. Ott ,  Kent A. Burr ,  Godfrey R. Sherriff

    发明人： Gary K. Law ,  Michael G. Ott ,  Kent A. Burr ,  Godfrey R. Sherriff

    IPC分类号： G05B11/01

    CPC分类号： G05B19/045 ,  G05B2219/23258 ,  G05B2219/23289 ,  Y02P90/14 ,  Y02P90/18 ,  Y02P90/185 ,  Y02P90/26

    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 cause astute machine implemented by the state machine function block to change states. The state machine function block may determine a next state to which it is to transition based, at least in part, on data indicative of the next state to which to transition, if any. The configuration data may be retrieved from a database based on the current state of the state machine and at least one of the inputs. The state machine function block may also include one or more outputs that are generated based on the state of the state machine.

    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，这可能导致由状态机功能块实现的精细机器来改变状态。 至少部分地，状态机功能块可以基于指示要转换到的下一状态的数据（如果有的话）来确定其将要转换到的下一状态。 可以基于状态机的当前状态和至少一个输入从数据库检索配置数据。 状态机功能块还可以包括基于状态机的状态生成的一个或多个输出。

    Methods and apparatus to apply multiple trip limits to a device in a process control system
    2.
    发明授权
    Methods and apparatus to apply multiple trip limits to a device in a process control system 有权
    在过程控制系统中对设备应用多个跳闸限制的方法和装置

    公开(公告)号：US09239576B2

    公开(公告)日：2016-01-19

    申请号：US13399251

    申请日：2012-02-17

    申请人： Keith Richard Bellville ,  Gary Keith Law ,  Godfrey R. Sherriff ,  David Mark Smith

    发明人： Keith Richard Bellville ,  Gary Keith Law ,  Godfrey R. Sherriff ,  David Mark Smith

    IPC分类号： G05B11/01 ,  G05B23/02

    CPC分类号： G05B23/0235

    摘要： Methods and apparatus to apply multiple trip limits to a device in a process control system are disclosed. An example method involves monitoring a value of a parameter associated with the operation of the device and receiving an input indicative of an operational state of the device, where a first input indicates a first operational state and a second input indicates a second operational state. If the first input is received, comparing via a function block the value of the parameter to a first trip limit, and if the second input is received, comparing via the function block the value of the parameter to a second trip limit, and implementing a response based on the comparison.

    摘要翻译： 公开了在过程控制系统中对设备应用多个跳闸限制的方法和装置。 示例性方法包括监视与设备的操作相关联的参数的值，并且接收指示设备的操作状态的输入，其中第一输入指示第一操作状态，第二输入指示第二操作状态。 如果接收到第一输入，则通过功能块将参数的值与第一跳闸限制进行比较，并且如果接收到第二输入，则通过功能块将参数的值与第二跳闸限制进行比较，并且实现 基于对比的回应。

    Apparatus and methods for intrusion protection in safety instrumented process control systems
    4.
    发明授权
    Apparatus and methods for intrusion protection in safety instrumented process control systems 有权
    安全仪表化过程控制系统中的入侵保护装置和方法

    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。

    STATE MACHINE FUNCTION BLOCK WITH A USER MODIFIABLE STATE TRANSITION CONFIGURATION DATABASE
    5.
    发明申请
    STATE MACHINE FUNCTION BLOCK WITH A USER MODIFIABLE STATE TRANSITION CONFIGURATION DATABASE 有权
    状态机功能块与用户可修改状态过渡配置数据库

    公开(公告)号：US20110270418A1

    公开(公告)日：2011-11-03

    申请号：US12767534

    申请日：2010-04-26

    申请人： Gary K. LAW ,  Michael G. OTT ,  Kent A. BURR ,  Godfrey R. SHERRIFF

    发明人： Gary K. LAW ,  Michael G. OTT ,  Kent A. BURR ,  Godfrey R. SHERRIFF

    IPC分类号： G05B15/02

    CPC分类号： G05B19/045 ,  G05B2219/23258 ,  G05B2219/23289 ,  Y02P90/14 ,  Y02P90/18 ,  Y02P90/185 ,  Y02P90/26

    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 cause astute machine implemented by the state machine function block to change states. The state machine function block may determine a next state to which it is to transition based, at least in part, on data indicative of the next state to which to transition, if any. The configuration data may be retrieved from a database based on the current state of the state machine and at least one of the inputs. The state machine function block may also include one or more outputs that are generated based on the state of the state machine.

    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，这可能导致由状态机功能块实现的精细机器来改变状态。 至少部分地，状态机功能块可以基于指示要转换到的下一状态的数据（如果有的话）来确定其将要转换到的下一状态。 可以基于状态机的当前状态和至少一个输入从数据库检索配置数据。 状态机功能块还可以包括基于状态机的状态生成的一个或多个输出。

    REMOVABLE SECURITY MODULES AND RELATED METHODS
    6.
    发明申请
    REMOVABLE SECURITY MODULES AND RELATED METHODS 有权
    可拆卸的安全模块及相关方法

    公开(公告)号：US20100185857A1

    公开(公告)日：2010-07-22

    申请号：US12356863

    申请日：2009-01-21

    申请人： Lee Allen Neitzel ,  Gary Keith Law ,  Godfrey R. Sherriff

    发明人： Lee Allen Neitzel ,  Gary Keith Law ,  Godfrey R. Sherriff

    IPC分类号： H04L9/32

    CPC分类号： G05B19/0428 ,  G05B2219/25107 ,  G05B2219/25326 ,  G06F12/1408

    摘要： Example removable security modules for use with process control devices and related methods are disclosed. An example removable security module includes a body configured to be removably coupled to the process control device and a memory disposed in the body with a shared secret stored in the memory. The example removable security module also includes a processing unit disposed in the body, coupled to the memory and configured to read information from the process control device, compare the information to the shared secret and authenticate the process control device based on the comparison.

    摘要翻译： 公开了用于过程控制设备和相关方法的示例性可移除安全模块。 示例性可移除安全模块包括被配置为可移除地耦合到过程控制设备的主体和布置在身体中的具有存储在存储器中的共享秘密的存储器。 示例性可移除安全模块还包括设置在主体中的处理单元，其耦合到存储器并且被配置为从过程控制设备读取信息，将信息与共享秘密进行比较，并且基于该比较验证过程控制设备。

    Use of remote soft phases in a process control system
    7.
    发明授权
    Use of remote soft phases in a process control system 有权
    在过程控制系统中使用远程软相

    公开(公告)号：US06647315B1

    公开(公告)日：2003-11-11

    申请号：US09677552

    申请日：2000-09-29

    申请人： Godfrey R. Sherriff ,  William G. Irwin ,  David L. Deitz ,  Grant Wilson

    发明人： Godfrey R. Sherriff ,  William G. Irwin ,  David L. Deitz ,  Grant Wilson

    IPC分类号： G06F1900

    CPC分类号： G05B19/042 ,  G05B2219/33104 ,  G05B2219/33158

    摘要： A process control system includes an executive routine located at a first node of a process control system, one or more soft phases located at other nodes remote from the first node and communication software located in the each of the nodes to enable the executive routine to call and execute the soft phases that are at nodes remote from the first node. This operation may reduce loading or communication traffic on the batch executive node and enables the operator to interact with a soft phase at a workstation or node that is convenient to the operation of the soft phase, which makes the operator's task easier and results in faster execution of the soft phase.

    摘要翻译： 过程控制系统包括位于过程控制系统的第一节点处的执行例程，位于远离第一节点的其他节点处的一个或多个软阶段和位于每个节点中的通信软件，以使得执行例程可以调用 并且执行位于远离第一节点的节点处的软相位。 该操作可以减少批量执行节点上的加载或通信流量，并且使得操作者能够在便于软相操作的工作站或节点处与软相进行交互，这使得操作者的任务更容易并且导致更快的执行 的软相。

    Removable security modules and related methods
    8.
    发明授权
    Removable security modules and related methods 有权
    可拆卸的安全模块及相关方法

    公开(公告)号：US08977851B2

    公开(公告)日：2015-03-10

    申请号：US12356863

    申请日：2009-01-21

    申请人： Lee Allen Neitzel ,  Gary Keith Law ,  Godfrey R. Sherriff

    发明人： Lee Allen Neitzel ,  Gary Keith Law ,  Godfrey R. Sherriff

    IPC分类号： G05B19/042 ,  G06F12/14

    CPC分类号： G05B19/0428 ,  G05B2219/25107 ,  G05B2219/25326 ,  G06F12/1408

    摘要： Example removable security modules for use with process control devices and related methods are disclosed. An example removable security module includes a body configured to be removably coupled to the process control device and a memory disposed in the body with a shared secret stored in the memory. The example removable security module also includes a processing unit disposed in the body, coupled to the memory and configured to read information from the process control device, compare the information to the shared secret and authenticate the process control device based on the comparison.

    摘要翻译： 公开了用于过程控制设备和相关方法的示例性可移除安全模块。 示例性可移除安全模块包括被配置为可移除地耦合到过程控制设备的主体和布置在身体中的具有存储在存储器中的共享秘密的存储器。 示例性可移除安全模块还包括设置在主体中的处理单元，其耦合到存储器并且被配置为从过程控制设备读取信息，将信息与共享秘密进行比较，并且基于该比较验证过程控制设备。