公开(公告)号：US08050784B2

公开(公告)日：2011-11-01

申请号：US12093764

申请日：2006-11-15

申请人： James A. Bizily ,  Scott A. Pierce ,  Patrick D. Telljohann ,  Robert D. Law ,  Dennis M. Wylie, Jr. ,  Paul T. Griesmer

发明人： James A. Bizily ,  Scott A. Pierce ,  Patrick D. Telljohann ,  Robert D. Law ,  Dennis M. Wylie, Jr. ,  Paul T. Griesmer

IPC分类号： G06F19/00 ,  G01B3/44 ,  G01B5/28

CPC分类号： G06Q10/00

摘要： A computer program to assist in programming an industrial control system provides a programmer with a functional description of the data of low-level devices in the industrial controller, as gleaned from electronic data sheets, whose data is extracted and combined with mapping data used during the configuration of the industrial controller. The functional description may be used to create a reference for the programmer that may be incorporated into the control program source file.

摘要翻译： 用于协助编程工业控制系统的计算机程序为程序员提供了工业控制器中的低级设备的数据的功能描述，从电子数据表中获取数据，数据被提取出来，并与在 配置工业控制器。 功能描述可以用于为编程器创建可并入到控制程序源文件中的参考。

公开(公告)号：US07930041B2

公开(公告)日：2011-04-19

申请号：US12240462

申请日：2008-09-29

申请人： Edward C. Korsberg ,  David A. Vasko ,  Darren R. Klug ,  Petr Ptacek

发明人： Edward C. Korsberg ,  David A. Vasko ,  Darren R. Klug ,  Petr Ptacek

IPC分类号： G05B11/01 ,  G06F13/00

CPC分类号： G05B19/0421 ,  G05B19/4148 ,  G05B2219/25472 ,  G05B2219/25478 ,  G05B2219/25479 ,  G05B2219/31218 ,  H04L12/40006

摘要： An industrial control system communicating among various control elements via a serial network synchronizes the scanning loops associated with collecting and forwarding data along the network so as to substantially reduce transmission delay and jitter, using synchronization information passed along the network.

摘要翻译： 通过串行网络在各种控制元件之间进行通信的工业控制系统使得沿着网络收集和转发数据的扫描循环同步，从而使用沿着网络传递的同步信息来大幅度地减少传输延迟和抖动。

公开(公告)号：US07834280B2

公开(公告)日：2010-11-16

申请号：US12013689

申请日：2008-01-14

申请人： Julian Poyner

发明人： Julian Poyner

IPC分类号： H01H19/00

CPC分类号： H01H27/002

摘要： A safety switch that includes a housing, a first switch, and a second switch. The switch has a two part rod that is axially moveable within the housing. The parts of the rod are co-operable with respect to one another and independently operable to activate one of the first and second switches. A biasing element is arranged to bias the rod parts into contact with a cam arrangement and arranged to bias the rod parts out of engagement with one of the respective switches. The cam arrangement is configured such that rotation of the cam arrangement will move the rod parts thereby activating the switches to allow the safety switch to conduct electricity.

摘要翻译： 一种安全开关，包括壳体，第一开关和第二开关。 开关具有可在壳体内轴向移动的两部分杆。 杆的部分可相对于彼此共同操作并且可独立地操作以激活第一和第二开关中的一个。 偏置元件被布置成将杆部件偏置成与凸轮装置接触并且被布置成偏置杆部件脱离与各个开关之一的接合。 凸轮装置构造成使得凸轮装置的旋转将移动杆部件，从而启动开关以允许安全开关导电。

公开(公告)号：US07809876B2

公开(公告)日：2010-10-05

申请号：US12367012

申请日：2009-02-06

申请人： Sivaram Balasubramanian

发明人： Sivaram Balasubramanian

IPC分类号： G06F13/24 ,  H05K7/10

CPC分类号： G05B19/0421 ,  G05B19/052 ,  G05B19/41865 ,  G05B2219/13001 ,  G05B2219/13087 ,  G05B2219/25411 ,  G05B2219/31218 ,  G05B2219/32266 ,  G06F9/4812 ,  G06F9/4887 ,  G06F9/5016 ,  G06F9/5044 ,  H04L47/50 ,  H04L47/6215 ,  H04L47/624 ,  H04L49/90 ,  H04L49/9063 ,  Y02P90/12 ,  Y02P90/20

摘要： A distributed control system and methods of operating such a control system are disclosed. In one embodiment, the distributed control system is operated in a manner in which interrupts are at least temporarily inhibited from being processed to avoid excessive delays in the processing of non-interrupt tasks. In another embodiment, the distributed control system is operated in a manner in which tasks are queued based upon relative timing constraints that they have been assigned. In a further embodiment, application programs that are executed on the distributed control system are operated in accordance with high-level and/or low-level requirements allocated to resources of the distributed control system.

摘要翻译： 公开了一种分布式控制系统和操作这种控制系统的方法。 在一个实施例中，分布式控制系统以至少暂时禁止中断被处理以避免非中断任务的处理中的过度延迟的方式操作。 在另一个实施例中，分布式控制系统的操作方式是根据它们已被分配的相对时序约束将任务排队。 在另一个实施例中，在分布式控制系统上执行的应用程序根据分配给分布式控制系统的资源的高级和/或低级要求来操作。

公开(公告)号：US07804287B2

公开(公告)日：2010-09-28

申请号：US11680228

申请日：2007-02-28

申请人： Dale R. Terdan ,  Xiaofan Chen

发明人： Dale R. Terdan ,  Xiaofan Chen

IPC分类号： H02M3/156

CPC分类号： H03K19/0008 ,  Y10T307/352

摘要： A current-loop output circuit for an industrial controller provides for low power dissipation and reduced part count by driving current loads of different resistances directly from a switched voltage source. Proper filtering and design of a feedback loop allows the necessary transient response times to be obtained.

摘要翻译： 用于工业控制器的电流环路输出电路通过直接从开关电压源驱动不同电阻的电流负载来提供低功耗和减少部件数量。 反馈回路的适当过滤和设计允许获得必要的瞬态响应时间。

公开(公告)号：US07747764B2

公开(公告)日：2010-06-29

申请号：US09964916

申请日：2001-09-27

申请人： Brian A. Batke ,  Gary W. Baczkowski ,  Kenwood H. Hall

发明人： Brian A. Batke ,  Gary W. Baczkowski ,  Kenwood H. Hall

IPC分类号： G06F15/16

CPC分类号： H04L67/125 ,  G05B2219/34444 ,  H04L69/08 ,  H04L69/16 ,  H04L69/162

摘要： A new industrial control system and method are disclosed allowing for communication between multiple control devices of the system and remote devices via the Internet. The system includes a web access interface that is capable of being coupled to the remote devices via the Internet, and is coupled to the control devices by way of a network. A program executed by the interface receives an Internet signal having socket API data and formatted in accordance with the TCP/IP protocol, and extracts the data from the Internet signal. Another program executed by the interface receives the data and transmits a network signal, which includes the data but is not formatted in accordance with the TCP/IP protocol, to an appropriate one of the control devices, each of which has a respective web server program. The data is processed by the server program at the appropriate control device.

摘要翻译： 公开了一种新的工业控制系统和方法，允许通过因特网在系统的多个控制设备和远程设备之间进行通信。 该系统包括能够经由因特网耦合到远程设备的网络接入接口，并且通过网络耦合到控制设备。 由该接口执行的程序接收具有套接字API数据的因特网信号，并根据TCP / IP协议格式化，并从因特网信号中提取数据。 由该接口执行的另一程序接收数据，并将包含该数据但未根据该TCP / IP协议进行格式化的网络信号发送给适当的一个控制装置，每个控制装置具有各自的web服务器程序 。 数据由服务器程序在适当的控制设备处理。

公开(公告)号：US07747405B2

公开(公告)日：2010-06-29

申请号：US11689281

申请日：2007-03-21

申请人： Thomas Bruce Meagher ,  Kenneth John Murphy ,  Linda Murphy, legal representative

发明人： Thomas Bruce Meagher ,  Kenneth John Murphy

IPC分类号： G01R35/04

CPC分类号： H03L7/08 ,  H03L7/087

摘要： This invention relates to line frequency synchronisation for use in diagnostics for alternating current electrical circuits. The invention provides a method of synchronising measurement system frequency with an alternating current line frequency comprising the steps of: adjusting the frequency of the measurement system frequency using a frequency locked loop until the measurement system frequency is within a predetermined range of said alternating current line frequency; and when the measurement system frequency is within a predetermined range of said alternating current line frequency adjusting the phase and the frequency of the measurement system frequency using a phase and frequency locked loop.

摘要翻译： 本发明涉及用于交流电路诊断的线路频率同步。 本发明提供了一种使测量系统频率与交流电频率同步的方法，包括以下步骤：使用频率锁定环调整测量系统频率的频率，直到测量系统频率在所述交流线路频率的预定范围内 ; 并且当测量系统频率在所述交流电线频率的预定范围内时，使用相位和频率锁定环来调节测量系统频率的相位和频率。

公开(公告)号：US07688560B2

公开(公告)日：2010-03-30

申请号：US11689691

申请日：2007-03-22

申请人： Thomas Bruce Meagher ,  Kenneth John Murphy ,  Linda M. Murphy, legal representative

发明人： Thomas Bruce Meagher ,  Kenneth John Murphy

IPC分类号： H02H3/00

CPC分类号： G05B9/02

摘要： This invention relates to overload protection for a circuit driving a direct current (DC) load. The invention provides a method of generating an overload condition for an output module driving a load having a load current and a load voltage comprising the steps of: monitoring the load current at sample intervals; comparing the monitored load current to a predetermined load current threshold; starting an overload timer in the event that the timer is not running and the monitored load current is greater than said load current threshold; monitoring the load voltage at said sample intervals; generating a ramped load voltage waveform for reference purposes in dependence upon an initial load voltage and a predetermined step size load voltage in the event that the overload timer is running; generating an overload condition in the event that the monitored load voltage is less than said ramped load voltage reference waveform, the ramped load voltage is less than a predetermined positive ramp limit and the overload timer is running.

摘要翻译： 本发明涉及驱动直流（DC）负载的电路的过载保护。 本发明提供了一种为驱动具有负载电流和负载电压的负载的输出模块产生过载条件的方法，包括以下步骤：以采样间隔监视负载电流; 将所监测的负载电流与预定负载电流阈值进行比较; 在定时器未运行并且监视的负载电流大于所述负载电流阈值的情况下启动过载定时器; 以所述采样间隔监视负载电压; 在过载定时器运行的情况下，根据初始负载电压和预定步长负载电压产生用于参考目的的斜坡负载电压波形; 在监控的负载电压小于所述斜坡负载电压参考波形的情况下，产生过载状况，斜坡负载电压小于预定的正斜率限制，并且过载定时器正在运行。

公开(公告)号：US07683568B2

公开(公告)日：2010-03-23

申请号：US11863514

申请日：2007-09-28

申请人： Manish Pande ,  Yunwei Li

发明人： Manish Pande ,  Yunwei Li

IPC分类号： H02P1/24

CPC分类号： H02M5/4585 ,  H02M1/4216 ,  H02M1/4233 ,  H02M5/4505 ,  H02P23/26 ,  H02P2201/15 ,  Y02B70/126 ,  Y02P80/112

摘要： The switching rectifier and switching inverter on a motor drive unit are modulated to indirectly change the magnitude of current and voltage stored in DC link by controlling the magnetic field of the motor to correct for both power factor lead and power factor lag over a wide range of motor speeds and conditions while maintaining a predetermined motor operating point.

摘要翻译： 电动机驱动单元上的开关整流器和开关变换器被调制以通过控制电动机的磁场来间接地改变存储在直流母线中的电流和电压的大小，从而在宽范围内校正功率因数导通和功率因数滞后 同时保持预定的电动机工作点。

公开(公告)号：US07649912B2

公开(公告)日：2010-01-19

申请号：US11115536

申请日：2005-04-27

申请人： Sivaram Balasubramanian ,  Anatoly Moldovansky ,  Kendal R. Harris

发明人： Sivaram Balasubramanian ,  Anatoly Moldovansky ,  Kendal R. Harris

IPC分类号： H04J3/06

CPC分类号： H04J3/0673 ,  H04J3/0664 ,  H04L12/4625

摘要： A method and circuit for precisely synchronizing clocks in separate nodes on a communication network is provided by adjusting timestamps and related data in network messages. The circuit will allow a daisy-chain connection of the nodes and will forward time synchronization frames while accounting for delays in a manner that does not use boundary clocks, but does not depart from the IEEE 1588 standard protocol. The delays will be added on the fly to synchronization packets and the IP checksum and frame CRC will be adjusted. Deterministic data delivery and redundant data paths are also provided in a full duplex Ethernet network.

摘要翻译： 通过调整网络消息中的时间戳和相关数据来提供用于在通信网络上的单独节点中精确同步时钟的方法和电路。 电路将允许节点的菊花链连接，并将转发时间同步帧，同时以不使用边界时钟的方式计算延迟，但不偏离IEEE 1588标准协议。 延迟将被即时添加到同步数据包，并且将对IP校验和和帧CRC进行调整。 确定性数据传输和冗余数据路径也在全双工以太网中提供。