公开(公告)号：US20060294047A1

公开(公告)日：2006-12-28

申请号：US11167381

申请日：2005-06-27

Applicant: David Johnston ,  Jacob Baker ,  Luis Capriles ,  Raymond Husted ,  Scott Pierce ,  Douglas Reid ,  Robert Sepsi ,  Douglas Sumerauer

Inventor： David Johnston ,  Jacob Baker ,  Luis Capriles ,  Raymond Husted ,  Scott Pierce ,  Douglas Reid ,  Robert Sepsi ,  Douglas Sumerauer

IPC: G06F17/30

CPC classification number: G06F9/466 ,  G05B19/0426 ,  G05B2219/23255 ,  G05B2219/23302 ,  G05B2219/23335 ,  G05B2219/24139 ,  G06F9/3004 ,  G06F9/30087 ,  G06F11/1474 ,  G06F11/2038 ,  Y02P90/265 ,  Y10S707/955

Abstract: An industrial control system includes an industrial controller and a programming interface. The industrial controller maintains a control program for interfacing with a controlled process. The programming interface is operable to communicate a transaction to the industrial controller. The transaction includes a plurality of operations for modifying the control program followed by a commit transaction command. The industrial controller is operable to preprocess the plurality of operations, designate the plurality of operations with a pending status, and commit the operations and clear the pending status responsive to receiving the commit transaction command.

Abstract translation: 工业控制系统包括工业控制器和编程接口。 工业控制器维护一个控制程序，用于与控制过程进行接口。 编程接口可操作以将事务传送到工业控制器。 交易包括用于修改控制程序的跟随着提交事务命令的多个操作。 工业控制器可操作以预处理多个操作，指定具有挂起状态的多个操作，并且响应于接收到提交事务命令而提交操作并清除挂起状态。

公开(公告)号：US5636124A

公开(公告)日：1997-06-03

申请号：US399074

申请日：1995-03-08

Applicant: Charles M. Rischar ,  David R. Rohn ,  David A. Johnston ,  Raymond Husted

Inventor： Charles M. Rischar ,  David R. Rohn ,  David A. Johnston ,  Raymond Husted

IPC: G05B19/042 ,  G06F19/00 ,  G06F7/64 ,  G06F7/66 ,  G06G7/64 ,  G06G7/66

CPC classification number: G05B19/042 ,  G05B2219/24125 ,  G05B2219/25342 ,  G05B2219/25347 ,  G05B2219/25367

Abstract: A multitasking industrial controller for real-time control of machinery and the like permits the use of both periodic and event driven tasks by establishing a hierarchy of both task types in the form of priorities that resolve conflicts between events of the same and different types. The unpredictability of the event driven tasks on scheduling of tasks is addressed by watchdog time values assigned to each task which confirm timely execution of the task in practice despite the risk of preemption by other tasks. Flexible software definition of event driven tasks is made possible by delegating the detection of the events to input/output modules executing independently of the processor executing the operating system.

Abstract translation: 用于机械等的实时控制的多任务工业控制器允许通过以解决相同和不同类型的事件之间的冲突的优先级的形式来建立两种任务类型的层次结构来允许周期性和事件驱动的任务的使用。 事件驱动任务对任务调度的不可预测性是通过分配给每个任务的看门狗时间值来解决的，这确保了在实践中及时执行任务，尽管其他任务具有抢占的风险。 通过将事件的检测委托给独立于执行操作系统的处理器执行的输入/输出模块，可以实现对事件驱动任务的灵活的软件定义。