Fault detection in power supply to a load in terms of a broken wire detection for a functional safety DC output

    公开(公告)号:US11675327B2

    公开(公告)日:2023-06-13

    申请号:US17051020

    申请日:2018-05-25

    发明人: James Allen Knoop

    摘要: An apparatus is provided for detecting fault conditions in the energy supply of a load. The apparatus comprises a fail-safe input-output (I/O) module circuit and a diagnostic circuit coupled to the fail-safe input-output (I/O) module circuit. The fail-safe input-output (I/O) module circuit includes a first switch coupled to a first resistor divider and a first output that supplies a DC supply voltage to the load via a first wiring to reduce a first voltage of the first output down to a first readback diagnostic output and a second switch coupled to a second resistor divider and a second output that supplies the DC supply voltage to the load via a second wiring to reduce a second voltage of the second output down to a second readback diagnostic output. The diagnostic circuit is to provide a first readback measurement signal from the first readback diagnostic output and provide a second readback measurement signal from the second readback diagnostic output. The apparatus is configured to provide the first readback measurement signal and the second readback measurement signal for the first output and the second output with and without the load such that when the first and second switches are open or OFF the first voltage at the first output with the load and the second voltage at the second output with the load indicate a NOT broken wire condition with respect to the first and second wirings while the first voltage at the first output without the load and the second voltage at the second output without the load indicate a broken wire condition with respect to the first and second wirings.

    AUTOMATION SYSTEM
    4.
    发明申请
    AUTOMATION SYSTEM 审中-公开
    自动化系统

    公开(公告)号:US20160291565A1

    公开(公告)日:2016-10-06

    申请号:US15037244

    申请日:2014-11-17

    发明人: Vitaliy VOLEVACH

    IPC分类号: G05B19/05

    摘要: An automation system which includes a first and a second controller for controlling an appliance or an installation, first and second input and/or output (I/O) units for receiving an electronic signal from the installation appliance or the installation and/or for outputting an electronic signal to the appliance or the installation, a control program which includes a plurality of control program modules for controlling the appliance or the installation, and a superordinate controller that associates the control program modules with the first and/or second controllers such that the appliance or the installation is controlled or can be controlled in accordance with the control program when the control program modules are executed within the respective control units, where the automation system is additionally configured such that each of the two control units interchange electronic data for controlling the appliance or the installation both with the first and with the second I/O units.

    摘要翻译: 一种自动化系统,包括用于控制设备或安装的第一和第二控制器,第一和第二输入和/或输出(I / O)单元,用于从安装设备接收电子信号或安装和/或输出 向设备或安装的电子信号,包括用于控制设备或安装的多个控制程序模块的控制程序,以及将控制程序模块与第一和/或第二控制器相关联的上级控制器,使得 在控制程序模块在相应的控制单元内执行的情况下,控制或者可以根据控制程序来控制设备或安装,其中自动化系统另外配置为使得两个控制单元中的每一个交换用于控制 设备或安装与第一个和第二个I / O单元。

    SYSTEM AND METHOD OF MULTI-CORE BASED SOFTWARE EXECUTION FOR PROGRAMMABLE LOGIC CONTROLLERS
    5.
    发明申请
    SYSTEM AND METHOD OF MULTI-CORE BASED SOFTWARE EXECUTION FOR PROGRAMMABLE LOGIC CONTROLLERS 审中-公开
    用于可编程逻辑控制器的多核软件执行系统和方法

    公开(公告)号:US20160091882A1

    公开(公告)日:2016-03-31

    申请号:US14499715

    申请日:2014-09-29

    IPC分类号: G05B19/05

    摘要: Real-time programmable logic controller software is executed on a multicore processor system. An organizational block executer is executed on a first core, and system service functions associated with the programmable logic controller software are executed on the second core. The organizational block executer includes I/O scanning and logic solving in a single-threaded execution. Core-switch operations may be cyclically performed to move execution of the organizational block executer from the first core to the second core and back to the first core.

    摘要翻译: 在多核处理器系统上执行实时可编程逻辑控制器软件。 在第一核上执行组织块执行器,并且在第二核上执行与可编程逻辑控制器软件相关联的系统服务功能。 组织块执行器在单线程执行中包括I / O扫描和逻辑解算。 可以循环地执行核心交换操作以将组织块执行器的执行从第一核心移动到第二核心并返回到第一核心。

    Industrial protocol system authentication and firewall
    6.
    发明授权
    Industrial protocol system authentication and firewall 有权
    工业协议系统认证和防火墙

    公开(公告)号:US09054863B2

    公开(公告)日:2015-06-09

    申请号:US13603102

    申请日:2012-09-04

    IPC分类号: H04L9/00 H04L9/08 H04L9/32

    摘要: Aspects of the present invention provide machines, systems, and methods in which industrial control systems may be secured from compromise and/or disruption via authentication and firewall. In particular, an industrial controller may: randomly generate an exchange key and send the exchange key to a client device in response to a transaction request originating from the client device; combine the exchange key with a locally stored pass key to produce an authentication code; and compare a challenge key received from the client device to the authentication code to determine a match between the challenge key and the authentication code. A successful match between the challenge key and the authentication code may allow the client device to further access the industrial controller using a common industrial protocol (CIP), and a failed match between the challenge key and the authentication code may prevent the client device from further access to the industrial controller.

    摘要翻译: 本发明的方面提供了可以通过认证和防火墙来防止工业控制系统遭受破坏和/或破坏的机器,系统和方法。 特别地,工业控制器可以:响应于源自客户端设备的事务请求,随机生成交换密钥并将交换密钥发送给客户端设备; 将交换密钥与本地存储的密钥组合以产生认证码; 并且将从客户端设备接收到的询问密钥与认证码进行比较,以确定质询密钥和认证码之间的匹配。 挑战密钥和认证码之间的成功匹配可以允许客户端设备使用公共工业协议(CIP)进一步访问工业控制器,并且质询密钥和认证码之间的失败匹配可能阻止客户端设备进一步 访问工业控制器。

    REMOTE TERMINAL DEVICE AND METHOD OF OPERATING THE SAME
    7.
    发明申请
    REMOTE TERMINAL DEVICE AND METHOD OF OPERATING THE SAME 有权
    远程终端设备及其操作方法

    公开(公告)号:US20150026381A1

    公开(公告)日:2015-01-22

    申请号:US14325076

    申请日:2014-07-07

    申请人: LSIS CO., LTD.

    发明人: Sung Sik HAM

    IPC分类号: G06F13/40

    摘要: Provided is a remote terminal device having an industrial versa module eurocard bus (VMEbus) structure and including a main module that receives control logic information of a field device from an input/output module, and a programmable logic controller (PLC) function module that receives the control logic information from the main module, performs a logic corresponding to the control logic information, and outputs a result of the performed logic. The PLC function module includes a dual port RAM including a plurality of memory areas, and a PLC chip that reads the control logic information written on one of the plurality of memory areas, performs the logic corresponding to the read control logic information, and outputs the result of the performed logic to another one of the plurality of memory areas.

    摘要翻译: 提供了一种具有反向模块欧洲卡总线(VMEbus)结构的远程终端设备,并且包括从输入/输出模块接收现场设备的控制逻辑信息的主模块以及接收到的可编程逻辑控制器(PLC)功能模块 来自主模块的控制逻辑信息执行与控制逻辑信息对应的逻辑,并且输出执行的逻辑的结果。 PLC功能模块包括包括多个存储区域的双端口RAM,以及读取写入多个存储区域之一的控制逻辑信息的PLC芯片,执行与读控制逻辑信息对应的逻辑,并输出 执行的逻辑到多个存储区域中的另一个的结果。

    System for programmed control of signal input and output to and from cable conductors
    8.
    发明授权
    System for programmed control of signal input and output to and from cable conductors 有权
    用于编程控制信号输入和输出到电缆导体的系统

    公开(公告)号:US07216191B2

    公开(公告)日:2007-05-08

    申请号:US11296134

    申请日:2005-12-06

    摘要: An input/output module for implementing directions from a controller for sending and receiving signals to and from devices. The input/output module includes a microprocessor for communication with, and receiving programming from the controller. The input/output module further includes device communication connectors, each having number of pins, each pin for interconnection with a cable conductor to a device. The input/output module has an ASIC for each of the pins, providing a controlled interface with the corresponding pin. Each ASIC has interconnection apparatus, selectable by the microprocessor for providing a particular interface with the pin served by the ASIC.

    摘要翻译: 一个输入/输出模块,用于实现来自控制器的方向,用于向设备发送和接收信号。 输入/输出模块包括用于与控制器进行通信和从控制器接收编程的微处理器。 输入/输出模块还包括每个具有多个引脚的设备通信连接器,每个引脚用于将电缆导体与设备互连。 输入/输出模块具有针对每个引脚的ASIC,为相应引脚提供受控接口。 每个ASIC具有互连装置,可由微处理器选择,以提供由ASIC服务的引脚的特定接口。

    Configurable connectorized I/O system
    9.
    发明授权
    Configurable connectorized I/O system 有权
    可配置的连接器I / O系统

    公开(公告)号:US06892265B2

    公开(公告)日:2005-05-10

    申请号:US10071870

    申请日:2002-02-08

    摘要: A system for making interconnections between an input/output module and a first device and a second device wherein the system uses standard cables and connectors. The input/output module includes a standard first connector for making connection with a standard first transmission line cable for conveying signals between the module and the first device, and at least one second connector, with such second connector connecting to a first end of a second standard cable. A second end of the second standard cable includes a standard cable connector for making connection to a corresponding connector of the second device. The input/output module is configured to contain programmable logic for making the required connections between the module and the first and second devices.

    摘要翻译: 一种用于在输入/输出模块与第一设备和第二设备之间进行互连的系统,其中系统使用标准电缆和连接器。 输入/输出模块包括标准的第一连接器,用于与标准的第一传输线电缆连接,用于在模块和第一设备之间传送信号,以及至少一个第二连接器,其中第二连接器连接到第二端的第一端 标准电缆 第二标准电缆的第二端包括用于连接到第二装置的相应连接器的标准电缆连接器。 输入/输出模块被配置为包含用于在模块和第一和第二设备之间进行所需连接的可编程逻辑。

    Systems and methods for processing I/O
    10.
    发明申请
    Systems and methods for processing I/O 有权
    用于处理I / O的系统和方法

    公开(公告)号:US20030188047A1

    公开(公告)日:2003-10-02

    申请号:US10313475

    申请日:2002-12-06

    IPC分类号: G06F003/00

    摘要: Systems and methods for accepting and producing various I/O. The systems can include a plurality of input connectors and/or output connectors integral to a board, a circuit to disable the output connectors, and a programmable logic controller modular to the board and electrically coupled to the plurality of input connectors and the plurality of output connectors. The programmable logic controller can be associated with a computer readable medium that incorporates instructions executable by the programmable logic controller to configure one or more of the input and/or output connectors, and/or to at least partially control an output timeout state.

    摘要翻译: 用于接收和生成各种I / O的系统和方法。 该系统可以包括多个输入连接器和/或与板组成一体的输出连接器,用于禁用输出连接器的电路,以及模块化到板上并电耦合到多个输入连接器和多个输出端的可编程逻辑控制器 连接器 可编程逻辑控制器可以与计算机可读介质相关联,该计算机可读介质包含可编程逻辑控制器可执行的指令以配置输入和/或输出连接器中的一个或多个,和/或至少部分地控制输出超时状态。