公开(公告)号：US5224031A

公开(公告)日：1993-06-29

申请号：US690997

申请日：1991-07-01

申请人： Kunio Tanaka ,  Yoshiharu Saiki

发明人： Kunio Tanaka ,  Yoshiharu Saiki

IPC分类号： G05B19/05 ,  G05B19/414

CPC分类号： G05B19/4147 ,  G05B2219/34298 ,  G05B2219/34299

摘要： Disclosed is a signal transfer control system of a programmable controller for transferring I/O signals between the PC and an external device. An I/O unit (26) includes an I/O signal region (1) for storing I/O signals transferred or received to or from an external device, and mapping data (2) for defining the mapping of the I/O signal region (1). Further, a RAM (23) of the PC includes point data (3) for defining the address to which I/O signals from the mapping data (2) are to be transferred, and an I/O data region (4) for storing the I/O data. Input signals are stored in the I/O signal region (1) and each of the I/O signals is mapped by the mapping data (2), and the point data (3) determines the address to which each of the mapped input signals is to be transferred. Namely, the addresses to which the input signals are to be transferred are determined by the mapping data (2) and the point data (3), and the input signals are then transferred to the I/O data region (4). Conversely, the input signals are transferred from the I/O data region (4) to the I/O signal region (1) by the point data (3) and the mapping data (2). Therefore, even if the arrangement of these I/O signals is changed, the change can be dealt with by changing the point data or the mapping data, without the need to change a sequence program.

摘要翻译： PCT No.PCT / JP90 / 01378 Sec。 371日期1991年7月1日 102（e）日期1991年7月1日PCT提交1990年10月24日PCT公布。 出版物WO91 / 06900 日期为1991年5月16日。公开是用于在PC和外部设备之间传输I / O信号的可编程控制器的信号传输控制系统。 I / O单元（26）包括用于存储从外部设备传送或接收的I / O信号的I / O信号区域（1），以及用于定义I / O信号的映射的映射数据（2） 区域（1）。 此外，PC的RAM（23）包括用于定义要从映射数据（2）传送的I / O信号的地址的点数据（3）和用于存储的映射数据（2）的I / O数据区域 I / O数据。 输入信号存储在I / O信号区域（1）中，每个I / O信号由映射数据（2）映射，点数据（3）确定每个映射的输入信号 将被转移。 即，由映射数据（2）和点数据（3）确定要传送输入信号的地址，然后将输入信号传送到I / O数据区域（4）。 相反，输入信号通过点数据（3）和映射数据（2）从I / O数据区域（4）传送到I / O信号区域（1）。 因此，即使这些I / O信号的配置发生变化，也可以通过改变点数据或映射数据来处理变更，而无需改变顺控程序。

公开(公告)号：US20240121300A1

公开(公告)日：2024-04-11

申请号：US18529802

申请日：2023-12-05

申请人： Cisco Technology, Inc.

发明人： Dominik Rene Tornow ,  Urmil Vijay Dave ,  Kyle Andrew Donald Mestery ,  Ian Wells

IPC分类号： H04L67/1097

CPC分类号： H04L67/1097 ,  G05B2219/23428 ,  G05B2219/34299

摘要： Systems, methods, and computer-readable media are provided for reusing execution environments and code of serverless functions while ensuring isolation in serverless computing environments. In some examples, a method can include, in response to a first request to run a serverless function, executing, at an execution environment on a network, computer-readable code configured to perform the serverless function; after the computer-readable code has executed, modifying a pointer to an area of memory used to store a first state of the serverless function to reference a different area of memory; in response to a second request to run the serverless function, reusing, at the execution environment, the computer-readable code to perform the serverless function; and based on the pointer referencing the different area of memory, using the different area of memory to store a second state of the serverless function.

公开(公告)号：US11882184B2

公开(公告)日：2024-01-23

申请号：US18148276

申请日：2022-12-29

申请人： Cisco Technology, Inc.

发明人： Dominik Rene Tornow ,  Urmil Vijay Dave ,  Kyle Andrew Donald Mestery ,  Ian Wells

IPC分类号： H04L67/1097

CPC分类号： H04L67/1097 ,  G05B2219/23428 ,  G05B2219/34299

摘要： Systems, methods, and computer-readable media are provided for reusing execution environments and code of serverless functions while ensuring isolation in serverless computing environments. In some examples, a method can include, in response to a first request to run a serverless function, executing, at an execution environment on a network, computer-readable code configured to perform the serverless function; after the computer-readable code has executed, modifying a pointer to an area of memory used to store a first state of the serverless function to reference a different area of memory; in response to a second request to run the serverless function, reusing, at the execution environment, the computer-readable code to perform the serverless function; and based on the pointer referencing the different area of memory, using the different area of memory to store a second state of the serverless function.