Apparatus and methods to communicatively couple field devices to controllers in a process control system
    1.
    发明授权
    Apparatus and methods to communicatively couple field devices to controllers in a process control system 有权
    将现场设备通信耦合到过程控制系统中的控制器的装置和方法

    公开(公告)号:US09083548B2

    公开(公告)日:2015-07-14

    申请号:US12236165

    申请日:2008-09-23

    摘要: Example apparatus and methods to communicatively couple field devices to controllers in a process control system are disclosed. An example method of changing a communication protocol of a first field device in a process control system includes decoupling from the first field device a first removable communication module configured to communicate using a first communication protocol. The example method also includes coupling to the first field device a second removable communication module configured to communicate using a second communication protocol. After coupling the second removable communication module, the first field device is configured to communicate using the second communication protocol. In addition, the first field device is coupled to a first communication channel on an input/output card when communicating using the first communication protocol and the first field device is coupled to the first communication channel on the input/output card when communicating using the second communication protocol.

    摘要翻译: 公开了将现场设备通信耦合到过程控制系统中的控制器的示例性设备和方法。 改变过程控制系统中的第一现场设备的通信协议的示例性方法包括:从第一现场设备解耦配置为使用第一通信协议通信的第一可移动通信模块。 示例性方法还包括将第二可移动通信模块耦合到第一现场设备,第二可移动通信模块被配置为使用第二通信协议进行通信。 在耦合第二可移动通信模块之后,第一现场设备被配置为使用第二通信协议进行通信。 此外,当使用第一通信协议进行通信时,第一现场设备耦合到输入/输出卡上的第一通信信道,并且当使用第二通信协议进行通信时,第一现场设备耦合到输入/输出卡上的第一通信信道 通讯协议。

    Timeswitches
    2.
    发明授权
    Timeswitches 失效
    时间开关

    公开(公告)号:US4851708A

    公开(公告)日:1989-07-25

    申请号:US173761

    申请日:1988-03-28

    IPC分类号: G05B19/042

    摘要: A programmable timeswitch comprises a microcontroller and a switching relay for controlling the supply of electricity to electrical apparatus in accordance with a predetermined `yearly` program stored in an EPROM. The yearly program can include different daily programs for weekdays and weekends and includes different seasonal programs to take account of different demands for electricity at different times of the year. The timeswitch is programmed to switch automatically from one seasonal program to the next seasonal program on predetermined dates in the year and so does not have to be re-programmed at intervals throughout the year. The timeswitch may be used as part of a `deferable load program` run by a utility in which a large number of timeswitches are supplied to different installations, the timeswitches having been programmed by a master console under the sole control of the utility.

    摘要翻译: 可编程时序开关包括微控制器和开关继电器,用于根据存储在EPROM中的预定“年度”程序控制向电气设备供电。 年度计划可以包括平日和周末的不同日常计划,并包括不同的季节性计划,以考虑到一年中不同时期不同的电力需求。 时间开关被编程为在一年中的预定日期从一个季节性程序自动切换到下一个季节性程序,因此不必每年间隔重新编程。 时间开关可以用作由实用程序运行的“延迟加载程序”的一部分,其中向不同的安装提供大量的时间开关,时间开关由主控制台在实用程序的唯一控制下编程。

    APPARATUS AND METHODS TO COMMUNICATIVELY COUPLE FIELD DEVICES TO CONTROLLERS IN A PROCESS CONTROL SYSTEM
    3.
    发明申请
    APPARATUS AND METHODS TO COMMUNICATIVELY COUPLE FIELD DEVICES TO CONTROLLERS IN A PROCESS CONTROL SYSTEM 有权
    将过程控制系统中的联动现场设备与控制器通信的装置和方法

    公开(公告)号:US20100077111A1

    公开(公告)日:2010-03-25

    申请号:US12236165

    申请日:2008-09-23

    IPC分类号: G06F13/00

    摘要: Example apparatus and methods to communicatively couple field devices to controllers in a process control system are disclosed. An example method of changing a communication protocol of a first field device in a process control system includes decoupling from the first field device a first removable communication module configured to communicate using a first communication protocol. The example method also includes coupling to the first field device a second removable communication module configured to communicate using a second communication protocol. After coupling the second removable communication module, the first field device is configured to communicate using the second communication protocol. In addition, the first field device is coupled to a first communication channel on an input/output card when communicating using the first communication protocol and the first field device is coupled to the first communication channel on the input/output card when communicating using the second communication protocol.

    摘要翻译: 公开了将现场设备通信耦合到过程控制系统中的控制器的示例性设备和方法。 改变过程控制系统中的第一现场设备的通信协议的示例性方法包括:从第一现场设备解耦配置为使用第一通信协议通信的第一可移动通信模块。 示例性方法还包括将第二可移动通信模块耦合到第一现场设备,第二可移动通信模块被配置为使用第二通信协议进行通信。 在耦合第二可移动通信模块之后,第一现场设备被配置为使用第二通信协议进行通信。 此外,当使用第一通信协议进行通信时,第一现场设备耦合到输入/输出卡上的第一通信信道,并且当使用第二通信协议进行通信时,第一现场设备耦合到输入/输出卡上的第一通信信道 通讯协议。

    Single-chip microcomputer programmable power distributor
    4.
    发明授权
    Single-chip microcomputer programmable power distributor 失效
    单片机可编程电源分配器

    公开(公告)号:US5506790A

    公开(公告)日:1996-04-09

    申请号:US265200

    申请日:1994-06-24

    申请人: Sanh K. Nguyen

    发明人: Sanh K. Nguyen

    IPC分类号: G05B19/042 G06F1/32 G06F9/06

    摘要: Apparatus and method are provided for intelligently controlling an electrical power distributor for a personal computer, its peripherals, and other devices. The apparatus includes a parallel interface; single-chip microcomputer; plurality of relays; power source connector; and plurality of electrical outlets. The parallel interface can be removably connected through a parallel cable to a parallel port of a personal computer. The single-chip microcomputer has a clock to keep time independent of the personal computer. In response to programming instructions from the personal computer, the single-chip microcomputer controls the relays to selectively connect and disconnect the power lead connector to the electrical outlets of the distributor. Communicating with the distributor is made user friendly by including a software prorgram for the personal computer that translates simple commands from the user into commands sent through the parallel port of the personal computer to the distributor. The distributor can share the parallel port of the personal computer with another peripheral device, such as a printer, by use of a split-Y parallel cable or similar split cable or connector. The distributor reacts only to particular data transmitted on the split-Y parallel cable and ignores other data. A preferred embodiment of the distributor also includes a phone ring interface for detecting and responding to telephone ring signals. The single-chip microcomputer can be programmed by the personal computer to respond to one or more preselected sequences of one or more phone ring signals.

    摘要翻译: 提供了用于智能控制个人计算机,其外围设备和其他设备的电力分配器的装置和方法。 该装置包括并行接口; 单片机; 多个继电器; 电源连接器; 和多个电插座。 并行接口可以通过并行电缆可拆卸地连接到个人计算机的并行端口。 单片机具有保持时间独立于个人计算机的时钟。 响应于来自个人计算机的编程指令,单片机控制继电器以选择性地将电源引线连接器连接到分配器的电源插座。 通过将用于将简单命令从用户转换为通过个人计算机的并行端口发送的命令的个人计算机的软件配置文件包括到分发者进行通信,使得用户友好。 分配器可以通过使用分割式Y并行电缆或类似的分离电缆或连接器与另一外围设备(如打印机)共享个人计算机的并行端口。 分配器仅对在分割Y并行电缆上传输的特定数据进行反应,并忽略其他数据。 分配器的优选实施例还包括用于检测和响应电话振铃信号的电话环接口。 单个微型计算机可以由个人计算机编程以响应一个或多个电话铃声信号的一个或多个预选序列。