公开(公告)号：US07536590B2

公开(公告)日：2009-05-19

申请号：US10950171

申请日：2004-09-24

申请人： Hideo Okeda ,  Eisuke Nagano ,  Eiji Nakanishi ,  Kenichiro Tomita

发明人： Hideo Okeda ,  Eisuke Nagano ,  Eiji Nakanishi ,  Kenichiro Tomita

IPC分类号： G06F11/00

CPC分类号： G06F11/004 ,  G05B2219/24187 ,  G06F11/2038

摘要： A programmable controller has a first (executing) CPU unit and a second (standby) CPU unit for a duplexed operation. Each CPU unit stores CPU version indicating its functionality and function version indicative of the functionality of the user program stored in itself. Before the duplexed operation is started, the first CPU unit acquires the unit version of the second CPU unit, compares it with the function version stored in itself and judges from this comparison whether a duplexed operation is possible or not. Only if it is judged that the duplexed operation is possible, the first CPU unit copies the user program stored in itself to the second CPU unit together with the function version and the duplexed operation is started.

摘要翻译： 可编程控制器具有用于双工操作的第一（执行）CPU单元和第二（备用）CPU单元。 每个CPU单元存储指示其本身存储的用户程序的功能的功能和功能版本的CPU版本。 在双工操作开始之前，第一CPU单元获取第二CPU单元的单元版本，将其与本身存储的功能版本进行比较，并从该比较判断是否可以进行双工操作。 只有在判断为可以进行双面打印操作的情况下，第1 CPU单元将其本身存储的用户程序与功能版本一起复制到第2个CPU单元，开始双面打印操作。

公开(公告)号：US20050086560A1

公开(公告)日：2005-04-21

申请号：US10950171

申请日：2004-09-24

申请人： Hideo Okeda ,  Eisuke Nagano ,  Eiji Nakanishi ,  Kenichiro Tomita

发明人： Hideo Okeda ,  Eisuke Nagano ,  Eiji Nakanishi ,  Kenichiro Tomita

IPC分类号： G05B19/05 ,  G05B19/042 ,  G06F11/00 ,  G06F11/20

CPC分类号： G06F11/004 ,  G05B2219/24187 ,  G06F11/2038

摘要： A programmable controller has a first (executing) CPU unit and a second (standby) CPU unit for a duplexed operation. Each CPU unit stores CPU version indicating its functionality and function version indicative of the functionality of the user program stored in itself. Before the duplexed operation is started, the first CPU unit acquires the unit version of the second CPU unit, compares it with the function version stored in itself and judges from this comparison whether a duplexed operation is possible or not. Only if it is judged that the duplexed operation is possible, the first CPU unit copies the user program stored in itself to the second CPU unit together with the function version and the duplexed operation is started.

摘要翻译： 可编程控制器具有用于双工操作的第一（执行）CPU单元和第二（备用）CPU单元。 每个CPU单元存储指示其本身存储的用户程序的功能的功能和功能版本的CPU版本。 在双工操作开始之前，第一CPU单元获取第二CPU单元的单元版本，将其与本身存储的功能版本进行比较，并从该比较判断是否可以进行双工操作。 只有在判断为可以进行双面打印操作的情况下，第1 CPU单元将其本身存储的用户程序与功能版本一起复制到第2个CPU单元，开始双面打印操作。

公开(公告)号：US07428659B2

公开(公告)日：2008-09-23

申请号：US10455738

申请日：2003-06-04

申请人： Eisuke Nagano ,  Masanori Fukushima ,  Kenichiro Tomita ,  Kazuaki Tomita

发明人： Eisuke Nagano ,  Masanori Fukushima ,  Kenichiro Tomita ,  Kazuaki Tomita

IPC分类号： G06F11/00

CPC分类号： G05B19/058 ,  G05B2219/14015 ,  G05B2219/15118

摘要： A programmable controller includes two CPU units each having a detachably attached special-function module for carrying out a calculation process, each of the two CPU units recognizing conditions of the other CPU unit, one of them becoming an active unit and the other becoming a standby unit such that when the active unit fails and goes down the standby unit is switched to become active and resumes operations. The special-function module attached to the active CPU unit becomes an active module and carries out control processes with the active CPU unit and the other special-function module attached to the standby CPU unit becomes a standby module.

摘要翻译： 可编程控制器包括两个CPU单元，每个CPU单元具有可拆卸的特殊功能模块，用于执行计算过程，两个CPU单元中的每一个单元识别其他CPU单元的条件，其中一个成为有效单元，另一个成为待机 单元，使得当主动单元故障并且下降时，备用单元被切换为活动并且恢复操作。 附加到主动CPU单元的特殊功能模块成为活动模块，并且使用主动CPU单元执行控制过程，并且附加到备用CPU单元的其他特殊功能模块成为备用模块。

公开(公告)号：US07246270B2

公开(公告)日：2007-07-17

申请号：US10444922

申请日：2003-05-23

申请人： Eisuke Nagano ,  Kenichiro Tomita ,  Kazuya Sawa

发明人： Eisuke Nagano ,  Kenichiro Tomita ,  Kazuya Sawa

IPC分类号： G06F11/00

CPC分类号： G06F11/2005

摘要： A programmable controller has two communication units connected to a same network and a CPU unit. These two communication units are both identified by same unit-identifying data such as node numbers and unit numbers and function such that one of them operates in an active mode and the other operates in a standby mode. Each of these communication units, when in the active mode, operates to carry out data exchanges with the CPU unit and other nodes connected to the network and, when in standby mode, is prevented from carrying out any data exchange with the other nodes connected to the network. When the communication unit in the active mode fails and goes down, the one in the standby mode is switched to the active mode and carries out the data change. This mode-switching operation is carried out in response to a command from the CPU unit although it may be so arranged that the communication units communicate with each other and switch their modes by informing the occurrence of a failure to the other unit.

摘要翻译： 可编程控制器具有连接到同一网络和CPU单元的两个通信单元。 这两个通信单元都由相同的单元识别数据识别，例如节点号和单元号和功能，使得它们中的一个以活动模式操作，而另一个在待机模式下操作。 这些通信单元中的每一个处于主动模式时，与CPU单元和连接到网络的其他节点进行数据交换，并且当处于待机模式时，被阻止与连接到其他节点的其他节点进行任何数据交换 网络。 当主动模式的通信单元出现故障并且故障时，待机模式下的通信单元切换到活动模式，并执行数据更改。 该模式切换操作是响应于来自CPU单元的命令来执行的，尽管它可以被布置为使得通信单元彼此通信并且通过向另一个单元通知发生故障来切换它们的模式。