公开(公告)号：US20230393549A1

公开(公告)日：2023-12-07

申请号：US18033578

申请日：2021-06-08

申请人： Mitsubishi Electric Corporation

发明人： Eiji ICHIKAWA ,  Ryoichi SASAKI ,  Hajime TANIDE

IPC分类号： G05B19/05

CPC分类号： G05B19/056 ,  G05B19/058

摘要： The control system (1000) includes a programmable logic controller (PLC) (40) to control a device, and a program transmission apparatus (10) to transmit a control program (70) for causing the PLC (40) to control the device. The program transmission apparatus (10) includes a first code generator (113) to generate a first code (71) for verification of presence or absence of a change from the control program (70) by using the control program (70) and confidential data (80). The PLC (40) includes a second code generator (433) to generate a second code by using a receiving program as the control program (70) and the confidential data (80) that is shared with the program transmission apparatus (10), and an executor (435) to execute the receiving program when the first code (71) is identical to the second code.

公开(公告)号：US20160246278A1

公开(公告)日：2016-08-25

申请号：US14896698

申请日：2014-04-30

申请人： MITSUBISHI ELECTRIC CORPORATION

发明人： Hajime TANIDE ,  Kazuki MAEDA

IPC分类号： G05B19/05

CPC分类号： G05B19/056 ,  G05B2219/13004 ,  G05B2219/13174 ,  G05B2219/13186

摘要： A programmable controller includes a command executing engine unit that performs a user program and performs a computing process and nonvolatile memory that stores the result of the computing process. The command executing engine unit transitions to a temporary stop state in which a new cycle of computing process is not performed and stores the result of a cycle of computing process in the nonvolatile memory when the cycle of computing process of the user program ends, and releases the temporary stop state and transmits the result of the cycle of computing process stored in the nonvolatile memory to a simulation device when a stop release instructing command instructing to release the temporary stop state is received from the simulation device.

摘要翻译： 可编程控制器包括执行用户程序并执行计算处理的命令执行引擎单元和存储计算处理结果的非易失性存储器。 命令执行引擎单元转换到临时停止状态，其中不执行新的计算过程周期，并且当用户程序的计算过程的周期结束时将计算处理的周期的结果存储在非易失性存储器中，并且释放 临时停止状态，并且当从仿真装置接收到指示释放临时停止状态的停止释放指示命令时，将存储在非易失性存储器中的计算处理的循环的结果发送到模拟装置。

公开(公告)号：US20160098028A1

公开(公告)日：2016-04-07

申请号：US14890187

申请日：2013-05-17

申请人： MITSUBISHI ELECTRIC CORPORATION

发明人： Hajime TANIDE

IPC分类号： G05B19/042

CPC分类号： G05B19/0426 ,  G05B19/056 ,  G05B2219/13004 ,  G05B2219/13041 ,  G05B2219/15064 ,  G05B2219/2241

摘要： A programmable controller includes a command execution unit that executes multiple commands in a user program in order; a database storage unit that stores therein a database that holds data used in a process performed by the command execution unit in a table format; a database-query-command generation unit that, when the commands include a command to access the database, converts the access command into a database query command described in a database query language; and a database management unit that accesses the database in the database storage unit and acquires data specified by the database query command.

摘要翻译： 可编程控制器包括执行用户程序中的多个命令的命令执行单元; 数据库存储单元，其存储以表格格式保存由所述命令执行单元执行的处理中使用的数据的数据库; 数据库查询命令生成单元，当所述命令包含访问所述数据库的命令时，将所述访问命令转换为数据库查询语言中描述的数据库查询命令; 以及数据库管理单元，其访问数据库存储单元中的数据库并获取由数据库查询命令指定的数据。