Industrial control systems having input/output circuits with programmable input/output characteristics

    公开(公告)号:US06298393B1

    公开(公告)日:2001-10-02

    申请号:US09165014

    申请日:1998-09-30

    IPC分类号: G06F1310

    摘要: A programmable analog I/O circuit for use in an industrial control system has a first mode of operation as an input circuit and a second mode of operation as an output circuit. In the first mode of operation, a device-side I/O terminal is adapted for receiving an analog input status signal from an analog input device. In the second mode of operation, the device-side I/O terminal is adapted for transmitting an analog output control signal to an analog output device. According to another aspect, a programmable I/O circuit that drives an output device in an industrial control system comprises a plurality of configurable gain stages and a plurality of programmable isolating links. The plurality of programmable isolating links are coupled to the plurality of configurable gain stages and are programmable to determine a series or parallel arrangement of the plurality of configurable gain stages. The output control signal produced by the parallel arrangement is a high current, low voltage output signal as compared to the output control signal produced by the series arrangement. According to another aspect, an integrated circuit fabricated on a single semiconductor chip comprises an I/O interface, a control/logic circuit, and a communication interface. The integrated circuit may be advantageously used to provide a highly distributed industrial control system in which control is distributed all the way to the device level.

    Industrial control systems having input/output circuits with programmable input/output characteristics
    2.
    发明授权
    Industrial control systems having input/output circuits with programmable input/output characteristics 有权
    具有可编程输入/输出特性的输入/输出电路的工业控制系统

    公开(公告)号:US06225825B1

    公开(公告)日:2001-05-01

    申请号:US09164453

    申请日:1998-09-30

    IPC分类号: H03K190175

    摘要: A programmable analog I/O circuit for use in an industrial control system has a first mode of operation as an input circuit and a second mode of operation as an output circuit. In the first mode of operation, a device-side I/O terminal is adapted for receiving an analog input status signal from an analog input device. In the second mode of operation, the device-side I/O terminal is adapted for transmitting an analog output control signal to an analog output device. According to another aspect, a programmable I/O circuit that drives an output device in an industrial control system comprises a plurality of configurable gain stages and a plurality of programmable isolating links. The plurality of programmable isolating links are coupled to the plurality of configurable gain stages and are programmable to determine a series or parallel arrangement of the plurality of configurable gain stages. The output control signal produced by the parallel arrangement is a high current, low voltage output signal as compared to the output control signal produced by the series arrangement. According to another aspect, an integrated circuit fabricated on a single semiconductor chip comprises an I/O interface, a control/logic circuit, and a communication interface. The integrated circuit may be advantageously used to provide a highly distributed industrial control system in which control is distributed all the way to the device level.

    摘要翻译: 用于工业控制系统的可编程模拟I / O电路具有作为输入电路的第一操作模式和作为输出电路的第二操作模式。 在第一操作模式中,设备侧I / O端子适于从模拟输入设备接收模拟输入状态信号。 在第二操作模式中,器件侧I / O端子适于将模拟输出控制信号发送到模拟输出装置。 根据另一方面,驱动工业控制系统中的输出设备的可编程I / O电路包括多个可配置增益级和多个可编程隔离链路。 多个可编程隔离链路耦合到多个可配置增益级,并且可编程以确定多个可配置增益级的串联或并联布置。 由并联装置产生的输出控制信号是与由串联装置产生的输出控制信号相比的高电流,低电压输出信号。 根据另一方面,制造在单个半导体芯片上的集成电路包括I / O接口,控制/逻辑电路和通信接口。 集成电路可以有利地用于提供高度分散的工业控制系统,其中控制一直分配到设备级。

    Current loop drive module with dynamic compliance voltage
    3.
    发明授权
    Current loop drive module with dynamic compliance voltage 有权
    电流环路驱动模块,具有动态符合电压

    公开(公告)号:US07205818B2

    公开(公告)日:2007-04-17

    申请号:US10955814

    申请日:2004-09-30

    IPC分类号: H03K5/08 H03L5/00

    摘要: A current loop drive module includes a drive circuit and a compliance voltage controller. The drive circuit is configured to receive a compliance voltage and operable to generate a current loop signal based on the compliance voltage for receipt by an associated load coupled to the drive circuit. The compliance voltage controller is operable to adjust the compliance voltage based on the associated load. A method for generating a current loop signal includes generating a current loop signal based on a compliance voltage for receipt by an associated load and adjusting the compliance voltage based on the associated load.

    摘要翻译: 电流回路驱动模块包括驱动电路和顺从电压控制器。 驱动电路被配置为接收顺应性电压并且可操作以基于顺应性电压产生电流环路信号,以便由耦合到驱动电路的相关负载进行接收。 柔性电压控制器可操作以基于相关联的负载来调节顺应性电压。 一种用于产生电流环路信号的方法包括基于用于由相关联的负载接收的顺应性电压产生电流回路信号,并且基于相关联的负载来调整顺应性电压。

    Remote monitoring and control of an I/O module
    4.
    发明授权
    Remote monitoring and control of an I/O module 有权
    远程监控和控制I / O模块

    公开(公告)号:US07587251B2

    公开(公告)日:2009-09-08

    申请号:US11313979

    申请日:2005-12-21

    CPC分类号: G05B19/05 Y02P90/86

    摘要: An industrial automation monitoring and/or control system comprises a receiver component that receives a request for a web page associated with a network adaptor. An execution component executes instantiated objects within the web page to effectuate at least one of monitoring and control of an input/output module that is communicatively coupled to the network adaptor.

    摘要翻译: 工业自动化监控和/或控制系统包括接收对与网络适配器相关联的网页的请求的接收器组件。 执行组件执行网页内的实例化对象以实现通信地耦合到网络适配器的输入/输出模块的监视和控制中的至少一个。

    Industrial control systems having input/output circuits with programmable input/output characteristics

    公开(公告)号:US06308231B1

    公开(公告)日:2001-10-23

    申请号:US09163931

    申请日:1998-09-29

    IPC分类号: G06F1300

    摘要: A programmable analog I/O circuit for use in an industrial control system has a first mode of operation as an input circuit and a second mode of operation as an output circuit. In the first mode of operation, a device-side I/O terminal is adapted for receiving an analog input status signal from an analog input device. In the second mode of operation, the device-side I/O terminal is adapted for transmitting an analog output control signal to an analog output device. According to another aspect, a programmable I/O circuit that drives an output device in an industrial control system comprises a plurality of configurable gain stages and a plurality of programmable isolating links. The plurality of programmable isolating links are coupled to the plurality of configurable gain stages and are programmable to determine a series or parallel arrangement of the plurality of configurable gain stages. The output control signal produced by the parallel arrangement is a high current, low voltage output signal as compared to the output control signal produced by the series arrangement. According to another aspect, an integrated circuit fabricated on a single semiconductor chip comprises an I/O interface, a control/logic circuit, and a communication interface. The integrated circuit may be advantageously used to provide a highly distributed industrial control system in which control is distributed all the way to the device level.

    System and method of channel serialization in a safety I/O product
    6.
    发明授权
    System and method of channel serialization in a safety I/O product 有权
    安全I / O产品中通道序列化的系统和方法

    公开(公告)号:US07319406B2

    公开(公告)日:2008-01-15

    申请号:US11240714

    申请日:2005-09-30

    IPC分类号: G08B21/00

    摘要: A system serializes control signals within a safety control architecture wherein a safety serial interface at least one of receives and transmits signals from one or more processing components. A serialization component receives and serializes at least one data packet from the safety serial interface to control at least one of an input and an output associated with the safety control architecture. A safety related test circuit verifies input signals associated with the serialization component are not internally falsifying the state of the input signals. A heartbeat watchdog component verifies a true heartbeat bit in the at least one data packet is opposite a complement heartbeat bit in the at least one data packet within a predetermined time interval and shuts off power to at least one of an output and an input if such a condition is not met.

    摘要翻译: 系统在安全控制架构内对控制信号进行串行化,其中安全串行接口至少一个接收和发送来自一个或多个处理部件的信号。 序列化组件从安全串行接口接收并串行化至少一个数据分组,以控制与安全控制架构相关联的输入和输出中的至少一个。 验证与串行化组件相关联的输入信号的安全相关测试电路在内部不会伪造输入信号的状态。 心跳监视器组件验证至少一个数据分组中的真实心跳比特在预定时间间隔内与至少一个数据分组中的补码心跳比特相反,并且如果这样的话,则将其切换到输出和输入中的至少一个 条件不符合。