Integrated configuration in a process plant having a process control system and a safety system
    1.
    发明授权
    Integrated configuration in a process plant having a process control system and a safety system 有权
    具有过程控制系统和安全系统的过程工厂中的集成配置

    公开(公告)号:US07330768B2

    公开(公告)日:2008-02-12

    申请号:US10672548

    申请日:2003-09-26

    IPC分类号: G05B9/02

    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。

    Secure data write apparatus and methods for use in safety instrumented process control systems
    2.
    发明申请
    Secure data write apparatus and methods for use in safety instrumented process control systems 有权
    用于安全仪表化过程控制系统的安全数据写入设备和方法

    公开(公告)号:US20060111794A1

    公开(公告)日:2006-05-25

    申请号:US10993072

    申请日:2004-11-19

    IPC分类号: G05B11/01 G05B19/18

    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。

    State machine function block with a user modifiable output configuration database
    3.
    发明授权
    State machine function block with a user modifiable output configuration database 有权
    状态机功能块与用户可修改的输出配置数据库

    公开(公告)号:US07269468B2

    公开(公告)日:2007-09-11

    申请号:US10655929

    申请日:2003-09-05

    IPC分类号: G05B15/00

    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。

    Function block implementation of a cause and effect matrix for use in a process safety system
    5.
    发明授权
    Function block implementation of a cause and effect matrix for use in a process safety system 有权
    功能块实现用于过程安全系统的因果矩阵

    公开(公告)号:US06898468B2

    公开(公告)日:2005-05-24

    申请号:US10401655

    申请日:2003-03-28

    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。

    Integrated electronic signatures for approval of process control and safety system software objects
    6.
    发明授权
    Integrated electronic signatures for approval of process control and safety system software objects 有权
    集成电子签名,用于批准过程控制和安全系统软件对象

    公开(公告)号:US07076312B2

    公开(公告)日:2006-07-11

    申请号:US10666446

    申请日:2003-09-19

    IPC分类号: G05B11/01

    摘要: A software object approval system is integrated with a process control or safety system environment and, in particular, with a process control or safety system design environment to implement and manage electronic approval of new software objects created within the process control and safety system environment. The software object approval system electronically generates identification information representing a group of entities whose approval is needed prior to implementing a software object within the process control or safety system. The system may then send the software object to the entities and receive from each entity an electronic indication regarding approval of the software object. The approval system prevents the process control or safety system from implementing the software object until each entity within the group of entities approves the software object.

    摘要翻译: 软件对象批准系统与过程控制或安全系统环境集成,特别是与过程控制或安全系统设计环境集成,以实现和管理在过程控制和安全系统环境中创建的新软件对象的电子批准。 软件对象批准系统电子地生成表示在过程控制或安全系统内实现软件对象之前需要批准的一组实体的标识信息。 然后,系统可以将软件对象发送到实体,并从每个实体接收关于软件对象的批准的电子指示。 批准系统防止过程控制或安全系统实现软件对象,直到组内的实体批准软件对象。