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公开(公告)号：US4281392A
公开(公告)日：1981-07-28
申请号：US35068
申请日：1979-05-01
申请人： Valdis Grants , Ron Schultz , Timothy E. McAdams
发明人： Valdis Grants , Ron Schultz , Timothy E. McAdams
CPC分类号： G06F12/0653
摘要： A memory circuit receives memory modules which may vary in their size and their type. The memory circuit includes a decoder circuit which receives size feedback signals from each memory module which enables it to automatically assign each module the address space it requires. If the size of a memory module is changed, the decoder circuit reassigns the address space to accommodate the new module. Type feedback signals generated by each memory module enable the memory circuit to apply the proper control signals and enable the proper supporting circuitry when the memory module is addressed.
摘要翻译： 存储器电路接收可能在尺寸和类型上变化的存储器模块。 存储器电路包括解码器电路，其从每个存储器模块接收大小反馈信号，使其能够自动地为每个模块分配其所需的地址空间。 如果存储器模块的尺寸改变，则解码器电路重新分配地址空间以容纳新的模块。 由每个存储器模块产生的类型反馈信号使得存储器电路能够施加适当的控制信号，并且当存储器模块被寻址时启用适当的支持电路。
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公开(公告)号：US4172289A
公开(公告)日：1979-10-23
申请号：US839628
申请日：1977-10-05
申请人： Odo J. Struger , Valdis Grants
发明人： Odo J. Struger , Valdis Grants
CPC分类号： G05B19/054 , G05B2219/1145 , G05B2219/1151 , G05B2219/1159 , G05B2219/1204 , G05B2219/13017 , G05B2219/15048 , G05B2219/15127
摘要： A programmable controller sequentially executes a control program at a basic "scan rate" determined by the length of the program and the speed at which the controller processor executes the instructions therein. At the completion of each scan through the control program an I/O scan is performed which inputs the status of all sensing devices to the controller image table and outputs status data from the image table to operating devices. The present invention enables the status of selected sensing devices to be inputted and acted upon at any point during the scan through the control program and it enables the output of the processor logic unit to be coupled to a selected operating device at any point. The rate at which selected I/O devices can be scanned by the controller is thus programmable and may be much higher than the basic scan rate of the controller.
摘要翻译： 可编程控制器以由程序的长度和控制器处理器在其中执行指令的速度确定的基本“扫描速率”顺序地执行控制程序。 在通过控制程序的每次扫描完成后，执行I / O扫描，其将所有感测装置的状态输入到控制器图像表，并将状态数据从图像表输出到操作装置。 本发明使得所选择的感测装置的状态能够在通过控制程序进行的扫描期间的任何点被输入和作用，并且使得处理器逻辑单元的输出能够在任何点耦合到选定的操作装置。 选择的I / O设备可以由控制器扫描的速率是可编程的，并且可能远高于控制器的基本扫描速率。
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公开(公告)号：US4254473A
公开(公告)日：1981-03-03
申请号：US007554
申请日：1979-01-29
CPC分类号： G06F11/0763 , G05B19/054 , G06F11/00 , G06F13/38 , G05B2219/1103 , G05B2219/1181 , G05B2219/15018 , G05B2219/15048
摘要： A rack adapter for a programmable controller is included in each of four remotely located I/O interface racks that are connected in series to a central processor. The rack adapter includes a rack interface processor under program control which converts serial data received from the central processor to parallel data that is written into I/O modules in its rack. The rack interface processor also converts parallel data from I/O modules to serial data, which is sent back to the central processor through a select data out circuit in proper sequence with data from the other racks. The rack interface processor initiates the decontrol of machines connected to the four racks if a major transmission fault occurs, but the rack interface processor is tolerant to transmission errors caused by electrical noise. A dual-frequency clock drives the rack interface processor, and interface circuitry which is operable at two bit-transmission rates connects the rack interface processor to the communication channel, which can range up to 10,000 feet from the central processor.
摘要翻译： 四个远程位置的I / O接口机架中的每一个均包含可编程控制器的机架式适配器，这些I / O接口机架与中央处理器串联。 机架适配器包括一个程序控制下的机架接口处理器，它将从中央处理器接收的串行数据转换为写入其机架中的I / O模块的并行数据。 机架接口处理器还将I / O模块的并行数据转换为串行数据，通过选择数据输出电路以与其他机架的数据相适应的顺序将其发送回中央处理器。 如果发生主要传输故障，机架接口处理器启动对连接到四个机架的机器的控制，但是机架接口处理器能够承受由电气噪声引起的传输错误。 双频时钟驱动机架接口处理器，并且可以以两位传输速率操作的接口电路将机架接口处理器连接到通信通道，该通信通道可以距离中央处理器高达10,000英尺。
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公开(公告)号：US4158226A
公开(公告)日：1979-06-12
申请号：US853721
申请日：1977-11-21
申请人： Odo J. Struger , Valdis Grants
发明人： Odo J. Struger , Valdis Grants
CPC分类号： G05B19/05 , G05B2219/1103 , G05B2219/13017 , G05B2219/25045
摘要： A programmable controller for sensing the status of sensing devices and controlling the state of operating devices in accordance with a stored program includes a position encoder input module which receives position data. In response to instructions in the stored program, the position data from the input module is compared with an upper and a lower limit stored in the controller memory, and if the data lies outside the limits, the controller logic unit is forced to a false decision.
摘要翻译： 用于感测感测装置的状态并根据存储的程序控制操作装置的状态的可编程控制器包括一个接收位置数据的位置编码器输入模块。 响应于所存储的程序中的指令，将来自输入模块的位置数据与存储在控制器存储器中的上限和下限进行比较，并且如果数据位于限制之外，则控制器逻辑单元被迫进行错误判定 。
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公开(公告)号：US4165534A
公开(公告)日：1979-08-21
申请号：US911520
申请日：1978-06-01
CPC分类号： G05B19/052 , G05B2219/1103 , G05B2219/1159 , G05B2219/1204 , G05B2219/13128 , G05B2219/15048 , G05B2219/15127
摘要： An eight-bit microprocessor sequentially reads controller type instructions from a memory and applies the operation codes of selected ones of the instructions to a hardwired Boolean processor. The microprocessor also couples status words between an I/O image table stored in the memory and the I/O interface racks which connect the programmable controller to the machine being controlled. In general, those controller type instructions which are word oriented are executed by the microprocessor and those which are single-bit oriented are executed by the Boolean processor. The Boolean processor is operable in combination with the microprocessor to examine selected status bits in the I/O image table and to set selected status bits therein to a logic state which is determined in part by the state of the examined status bits.
摘要翻译： 8位微处理器从存储器中顺序读取控制器类型的指令，并将所选指令的操作代码应用到硬连线布尔处理器。 微处理器还将存储在存储器中的I / O映像表和将可编程控制器连接到被控制的机器的I / O接口机架之间的状态字进行耦合。 通常，面向对象的那些控制器类型指令由微处理器执行，并且由单位定向的那些指令由布尔处理器执行。 布尔处理器与微处理器结合操作以检查I / O映像表中的所选状态位，并将其中的选定状态位设置为部分由被检查状态位的状态确定的逻辑状态。
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公开(公告)号：US4070702A
公开(公告)日：1978-01-24
申请号：US671020
申请日：1976-03-26
申请人： Valdis Grants , Odo J. Struger
发明人： Valdis Grants , Odo J. Struger
CPC分类号： G05B19/058 , G05B2219/14057 , G05B2219/14074
摘要： A controller programmer connects to a programmable controller and serves as a means for loading and editing the control program. When the contact histogram mode of operation is employed the logic state of a selected I/O device connected to the controller is monitored, and each time its status changes, its present status is recorded along with the time interval between status changes. A first embodiment is described in which the invention is employed in a hardwired controller program loader and a second embodiment is described in which the controller program loader employs a programmed microprocessor. In the first embodiment the status changes are recorded on paper tape and in the second embodiment they are recorded on a cathode ray tube screen.
摘要翻译： 控制器编程器连接到可编程控制器，并用作加载和编辑控制程序的手段。 当使用联系直方图操作模式时，监视连接到控制器的所选I / O设备的逻辑状态，并且每当其状态改变时，其当前状态与状态改变之间的时间间隔一起被记录。 描述了本发明在硬连线控制器程序加载器中采用的第一实施例，并且描述了第二实施例，其中控制器程序加载器使用编程的微处理器。 在第一实施例中，状态改变被记录在纸带上，并且在第二实施例中它们被记录在阴极射线管屏幕上。
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公开(公告)号：US4527250A
公开(公告)日：1985-07-02
申请号：US490740
申请日：1983-05-09
CPC分类号： G06F3/0202 , G06F3/0238 , H01H2219/002 , H01H2223/028
摘要： An interchangeable keyboard application module is connected to a video monitor module in a computer terminal to provide sequences of processor instructions and a keyboard for performing a plurality of selectable applications. The video monitor module includes a CRT display, a serial I/O interface and a processor that processes characters received through the serial I/O interface for display on the CRT screen whether or not the application module is attached. The processor in the video monitor module detects the connection of the application module, and then selects its instructions from a memory in the application module first, to prompt the selection of a mode of operation for the terminal, and second to execute the selected mode of operation. The application module uses a plurality of keyboard overlays, each corresponding to a respective mode of operation. In a specific embodiment two of the modes of operation are programming applications related to programmable controllers.
摘要翻译： 可互换键盘应用模块连接到计算机终端中的视频监视器模块，以提供处理器指令序列和用于执行多个可选应用的键盘。 视频监视器模块包括CRT显示器，串行I / O接口和处理器，其处理通过串行I / O接口接收的字符，以便在CRT屏幕上显示是否附加应用模块。 视频监视器模块中的处理器检测应用模块的连接，然后首先从应用模块中的存储器中选择其指令，以提示选择终端的操作模式，然后再次执行所选择的模式 操作。 应用模块使用多个键盘覆盖，每个对应于相应的操作模式。 在具体实施例中，两种操作模式是与可编程控制器相关的编程应用。
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公开(公告)号：US4251883A
公开(公告)日：1981-02-17
申请号：US30616
申请日：1979-04-16
申请人： Valdis Grants , Ronald E. Schultz
发明人： Valdis Grants , Ronald E. Schultz
CPC分类号： G05B19/058 , G05B2219/14053
摘要： A battery monitoring circuit in a programmable controller generates a logic signal when it senses a low output voltage from a memory back-up battery. A controller processor is programmed to set a fault status bit and store it in a memory with input/output status data. The fault status bit is output to an I/O interface rack together with input/output status data during an I/O scan routine. The fault status bit generates a logic signal to a fault indicating device on the I/O interface rack to signal an under-energized memory battery in the controller processor.
摘要翻译： 可编程控制器中的电池监视电路在从存储器备用电池感测到低输出电压时产生逻辑信号。 控制器处理器被编程为设置故障状态位并将其存储在具有输入/输出状态数据的存储器中。 在I / O扫描程序期间，故障状态位与输入/输出状态数据一起输出到I / O接口机架。 故障状态位为I / O接口机架上的故障指示设备产生一个逻辑信号，以指示控制器处理器中欠功率的内存电池。
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公开(公告)号：US4200915A
公开(公告)日：1980-04-29
申请号：US893252
申请日：1978-04-05
CPC分类号： G05B19/056 , G05B2219/1159 , G05B2219/13013 , G05B2219/15018 , G05B2219/15049
摘要： A microprocessor based program loader is connected to the memory data bus and memory address bus of a programmable controller. The program loader is responsive to commands entered through a keyboard to load and edit the programmable controller control program. A mode switch associated with the programmable controller provides a number of selectable positions which determine the mode of operation of the programmable controller and the functions that can be performed by the program loader. One of the positions on this mode switch enables the program loader through a control line to assume control of the mode selection. The operator can thus control the mode of operation through the program loader keyboard which may be located remotely from the programmable controller.
摘要翻译： 基于微处理器的程序加载器连接到可编程控制器的存储器数据总线和存储器地址总线。 程序加载器响应于通过键盘输入的命令来加载和编辑可编程控制器控制程序。 与可编程控制器相关联的模式切换器提供多个可选择的位置，这些位置决定了可编程控制器的操作模式以及可由程序加载器执行的功能。 该模式开关中的一个位置使程序加载器能够通过控制线来控制模式选择。 因此，操作者可以通过程序加载器键盘来控制操作模式，该程序加载器键盘可以远离可编程控制器。
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