公开(公告)号：US07590702B2

公开(公告)日：2009-09-15

申请号：US10003123

申请日：2001-11-26

申请人： Andrew G. Swales ,  A. Dean Papadopoulos ,  Allan Tanzman

发明人： Andrew G. Swales ,  A. Dean Papadopoulos ,  Allan Tanzman

IPC分类号： G06F15/16 ,  H04J3/16

CPC分类号： H04L12/403 ,  G05B19/4185 ,  H04L12/40013 ,  H04L12/413 ,  H04L69/16 ,  H04L2012/40215 ,  H04L2012/40228 ,  Y02P90/18 ,  Y02P90/185

摘要： A communications adapter is provided for interfacing between a master device and an I/O device (body) having an output and/or an input. In the case of the I/O body having an output, the adapter has a TCP port for coupling to the master device via a transmission path for receiving a request message. The adapter also has a connector for operable coupling to the I/O device for receiving the output of the I/O device. The adapter further has an interface circuit operably connected to the TCP port and the connector for transmitting a response message over the transmission path in response to the request message, the response message correlating to the output received from the I/O device. The request message and the response message is limited to a length that is less than a TCP transaction length and/or a maximum transmission unit limit, or both, depending on the embodiment of the present invention.

摘要翻译： 提供通信适配器用于在主设备和具有输出和/或输入的I / O设备（主体）之间进行接口。 在I / O主体具有输出的情况下，适配器具有用于通过用于接收请求消息的传输路径耦合到主设备的TCP端口。 适配器还具有用于可操作地耦合到I / O设备的连接器，用于接收I / O设备的输出。 适配器还具有可操作地连接到TCP端口和连接器的接口电路，用于响应于请求消息在传输路径上发送响应消息，该响应消息与从I / O设备接收的输出相关。 根据本发明的实施例，请求消息和响应消息被限制为小于TCP事务长度和/或最大传输单元限制或两者的长度。

公开(公告)号：US06587884B1

公开(公告)日：2003-07-01

申请号：US09477113

申请日：1999-12-31

申请人： A. Dean Papadopoulos ,  Allan Tanzman ,  Ronald H. Naismith

发明人： A. Dean Papadopoulos ,  Allan Tanzman ,  Ronald H. Naismith

IPC分类号： G06F1516

CPC分类号： H04L67/025 ,  G05B19/05 ,  G05B19/054 ,  G05B2219/1208 ,  G05B2219/15038 ,  G05B2219/31104 ,  G05B2219/31124 ,  G05B2219/31156 ,  G05B2219/31186 ,  G05B2219/31422 ,  G05B2219/32126 ,  G05B2219/34038 ,  H04L29/06 ,  H04L41/0803 ,  H04L67/02 ,  H04L67/12 ,  H04L67/142 ,  H04L67/42 ,  H04L69/08 ,  H04L69/16 ,  H04L69/161 ,  H04L69/169 ,  H04L69/329

摘要： A control system includes an Internet web interface to a network of at least one programmable logic control system running an application program for controlling output devices in response to status of input devices. The Web interface runs Web pages from an Ethernet board coupled directly to the PLC back plane and includes an HTTP protocol interpreter, a PLC back plane driver, a TCP/IP stack, and an Ethernet board kernel. The Web interface provides access to the PLC back plane by a user at a remote location through the Internet. The interface translates the industry standard Ethernet, TCP/IP and HTTP protocols used on the Internet into data recognizable to the PLC. Using this interface, the user can retrieve all pertinent data regarding the operation of the programmable logic controller system.

摘要翻译： 控制系统包括至少一个可编程逻辑控制系统的网络的因特网网络接口，其运行用于响应于输入设备的状态来控制输出设备的应用程序。 Web界面从直接连接到PLC背板的以太网板运行网页，并包括HTTP协议解释器，PLC后端驱动程序，TCP / IP协议栈和以太网板内核。 Web界面通过Internet在远程位置由用户访问PLC背板。 该接口将Internet上使用的行业标准以太网，TCP / IP和HTTP协议转换为PLC可识别的数据。 使用该接口，用户可以检索有关可编程逻辑控制器系统的操作的所有相关数据。

公开(公告)号：US06466995B2

公开(公告)日：2002-10-15

申请号：US09804362

申请日：2001-03-12

申请人： Andrew G. Swales ,  A. Dean Papadopoulos ,  Allan Tanzman

发明人： Andrew G. Swales ,  A. Dean Papadopoulos ,  Allan Tanzman

IPC分类号： G06F300

CPC分类号： H04L12/403 ,  G05B19/4185 ,  H04L12/40013 ,  H04L12/413 ,  H04L69/16 ,  H04L2012/40215 ,  H04L2012/40228 ,  Y02P90/18 ,  Y02P90/185

摘要： A communications adapter and method are provided for interfacing between a master device and an I/O device (body) having an output and/or an input. In the case of the I/O body having an output, the adapter has a TCP port for coupling to the master device via a transmission path for receiving a request message. The adapter also has a connector for operable coupling to the I/O device for receiving the output of the I/O device. The adapter further has an interface circuit operably connected to the TCP port and the connector for transmitting a response message over the transmission path in response to the request message, the response message correlating to the output received from the I/O device. The request message and the response message is limited to a length that is less than a TCP transaction length and/or a maximum transmission unit limit, or both, depending on the embodiment of the present invention.

摘要翻译： 提供通信适配器和方法用于在主设备和具有输出和/或输入的I / O设备（主体）之间进行接口。 在I / O主体具有输出的情况下，适配器具有用于通过用于接收请求消息的传输路径耦合到主设备的TCP端口。 适配器还具有用于可操作地耦合到I / O设备的连接器，用于接收I / O设备的输出。 适配器还具有可操作地连接到TCP端口和连接器的接口电路，用于响应于请求消息在传输路径上发送响应消息，该响应消息与从I / O设备接收的输出相关。 根据本发明的实施例，请求消息和响应消息被限制为小于TCP事务长度和/或最大传输单元限制或两者的长度。

公开(公告)号：US06233626B1

公开(公告)日：2001-05-15

申请号：US09166870

申请日：1998-10-06

申请人： Andrew G. Swales ,  A. Dean Papadopoulos ,  Allan Tanzman

发明人： Andrew G. Swales ,  A. Dean Papadopoulos ,  Allan Tanzman

IPC分类号： G06F300

CPC分类号： H04L12/403 ,  G05B19/4185 ,  H04L12/40013 ,  H04L12/413 ,  H04L69/16 ,  H04L2012/40215 ,  H04L2012/40228 ,  Y02P90/18 ,  Y02P90/185

摘要： A communications adapter is provided for interfacing between a master device and an I/O device (body) having an output and/or an input. In the case of the I/O body having an output, the adapter has a TCP port for coupling to the master device via a transmission path for receiving a request message. The adapter also has a connector for operable coupling to the I/O device for receiving the output of the I/O device. The adapter further has an interface circuit operably connected to the TCP port and the connector for transmitting a response message over the transmission path in response to the request message, the response message correlating to the output received from the I/O device. The request message and the response message is limited to a length that is less than a TCP transaction length and/or a maximum transmission unit limit, or both, depending on the embodiment of the present invention. A method is also provided to create a connection between a master device and an I/O device having an output and/or and input. In the case of the method for providing a connection between a master device and an I/O device having an output, the method includes receiving over a transmission path a request message on a preregistered TCP port selected from a plurality of TCP ports. The method also includes receiving the output from the I/O device. The method further includes transmitting a response message over the transmission path in response to the request message, the response message correlating to the output of the I/O device. The request message and/or the response message is limited to a length that is less than both a TCP transaction length and/or a maximum transmission unit limit, or both, depending on the embodiment of the present invention.

摘要翻译： 提供通信适配器用于在主设备和具有输出和/或输入的I / O设备（主体）之间进行接口。 在I / O主体具有输出的情况下，适配器具有用于通过用于接收请求消息的传输路径耦合到主设备的TCP端口。 适配器还具有用于可操作地耦合到I / O设备的连接器，用于接收I / O设备的输出。 适配器还具有可操作地连接到TCP端口和连接器的接口电路，用于响应于请求消息在传输路径上发送响应消息，该响应消息与从I / O设备接收的输出相关。 根据本发明的实施例，请求消息和响应消息被限制为小于TCP事务长度和/或最大传输单元限制或两者的长度。还提供了一种创建连接的方法 在主设备和具有输出和/或输入的I / O设备之间。 在用于在主设备和具有输出的I / O设备之间提供连接的方法的情况下，该方法包括在从多个TCP端口中选择的预注册TCP端口上通过传输路径接收请求消息。 该方法还包括接收I / O设备的输出。 所述方法还包括响应于所述请求消息在所述传输路径上发送响应消息，所述响应消息与所述I / O设备的输出相关。 根据本发明的实施例，请求消息和/或响应消息被限制为小于TCP事务长度和/或最大传输单元限制或两者的长度。

公开(公告)号：US6061603A

公开(公告)日：2000-05-09

申请号：US174565

申请日：1998-10-16

申请人： A. Dean Papadopoulos ,  Allan Tanzman ,  Richard A. Baker, Jr. ,  Rodolfo G. Belliardi ,  Dennis J. W. Dube

发明人： A. Dean Papadopoulos ,  Allan Tanzman ,  Richard A. Baker, Jr. ,  Rodolfo G. Belliardi ,  Dennis J. W. Dube

IPC分类号： G06F13/00 ,  G05B19/05 ,  H04L12/24 ,  H04L29/06 ,  H04L29/08 ,  H04Q9/00 ,  G05B9/02

CPC分类号： H04L67/025 ,  G05B19/05 ,  H04L29/06 ,  H04L41/0803 ,  H04L67/02 ,  H04L67/12 ,  H04L69/16 ,  H04L69/161 ,  H04L69/169 ,  G05B2219/15038 ,  G05B2219/31104 ,  G05B2219/31156 ,  G05B2219/31186 ,  G05B2219/31422 ,  G05B2219/32126 ,  G05B2219/34038 ,  H04L69/08

摘要： A control system allows a user to access a programmable logic controller (PLC). system over a communication network such as an Internet network using a web browser. The system includes an Internet web interface between the network and the programmable logic controller. The Web interface serves Web pages from an Ethernet interface on a PLC and includes an HTTP protocol interpreter and a TCP/IP stack. The Web interface provides access to the PLC by a user at a remote location through the Internet. The interface translates the industry standard Ethernet, TCP/IP and HTTP protocols used on the Internet into data recognizable to the PLC. Using this interface, the user can retrieve all pertinent data regarding the operation of the programmable logic controller system.

摘要翻译： 控制系统允许用户访问可编程逻辑控制器（PLC）。 系统通过通信网络，例如使用网络浏览器的因特网网络。 该系统包括网络和可编程逻辑控制器之​​间的因特网网络接口。 Web界面为PLC上的以太网接口提供Web页面，并包括一个HTTP协议解释器和一个TCP / IP协议栈。 Web界面通过Internet在远程位置提供用户对PLC的访问。 该接口将Internet上使用的行业标准以太网，TCP / IP和HTTP协议转换为PLC可识别的数据。 使用该接口，用户可以检索有关可编程逻辑控制器系统的操作的所有相关数据。