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    • 52. 发明申请
    • Safety controller and input-output unit therefor
    • 安全控制器及其输入输出单元
    • US20070285950A1
    • 2007-12-13
    • US11804553
    • 2007-05-17
    • Toshiyuki NakamuraKeiichi Teranishi
    • Toshiyuki NakamuraKeiichi Teranishi
    • H02M5/27
    • G05B19/058G05B2219/1181G05B2219/14038G05B2219/14047G05B2219/14048G05B2219/15093G05B2219/24125
    • A safety controller of building block type has an array of a plurality of IO units each including IO circuits and a single IO unifying unit connectable to these IO units. The IO unifying unit has an IO power-receiving terminal for receiving power from an external IO power source and an IO power distributing terminal for distributing the received power to the array of IO units after passing inside the IO unifying unit. The array of IO units includes distribution mains extending along the array and having a starting end connected to the IO power distributing terminal and distribution branch lines for supplying power to each of the IO circuits inside the IO units. An IO power shutoff circuit is provided to the IO unifying unit on upstream side of the IO power distributing terminal and to each of the distribution branch lines in each of the IO units.
    • 构件块型的安全控制器具有多个IO单元的阵列,每个IO单元包括IO电路和可连接到这些IO单元的单个IO统一单元。 IO统一单元具有用于从外部IO电源接收电力的IO电力接收终端和用于在通过IO统一单元之后将接收到的功率分配给IO单元阵列的IO分配终端。 IO单元阵列包括沿阵列延伸的分配电源,并且具有连接到IO配电终端的起始端和用于向IO单元内的每个IO电路供电的配电支路。 在IO分配终端的上游侧和每个IO单元中的每个分配支线上,向IO统一单元提供IO电力关闭电路。
    • 54. 发明授权
    • Safety network system, safety slave, and safety controller
    • 安全网络系统,安全从站和安全控制器
    • US07120505B2
    • 2006-10-10
    • US10481516
    • 2002-06-21
    • Toshiyuki NakamuraYasuo Muneta
    • Toshiyuki NakamuraYasuo Muneta
    • G05B19/18G05B9/02G05B11/01
    • G05B19/058G05B9/02G05B19/0428G05B2219/14114G05B2219/15005G05B2219/31131G05B2219/31189G05B2219/31211G05B2219/36159H04B3/542H04B2203/5458H04L12/403H04L12/4625H04L2012/4026Y02P90/18
    • A safety network system is constructed by connecting a safety PLC to a safety slave through a safety network. The safety slave obtains safety input informations from a plurality of safety devices connected thereto and transmits information based on the plurality of safety input informations in response to a request from the safety PLC. At this time, the safety slave determines whether or not a safety condition is satisfied based on the plurality of safety input informations, includes two notification modes, that is, a result notification mode in which a result of determination of safety determined by the above determination is transmitted and a detailed information mode in which the plurality of safety input informations are transmitted as they are as aggregated data, and returns a safety response in any of the modes according to a command from the safety PLC. In the result notification mode, the response can be returned at a high speed because an amount of data is small, and, in the detailed information mode, detailed information can be secured.
    • 通过安全网络将安全PLC连接到安全从站构成安全网络系统。 安全从属装置从连接到其上的多个安全装置获取安全输入信息,并响应于来自安全PLC的请求,基于多个安全输入信息发送信息。 此时,安全从属装置根据多个安全输入信息来判定是否满足安全条件,包括两种通知模式,即通过上述判断确定的安全性判定结果的结果通知模式 发送多个安全输入信息的详细信息模式,作为聚合数据被发送,并且根据来自安全PLC的命令返回任何模式的安全响应。 在结果通知模式中,由于数据量少,可以高速地返回响应,并且在详细信息模式中,可以确保详细信息。