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1. 发明申请

US20050097194A1 Downloadable code in a distributed process control system 有权
标题翻译：分布式过程控制系统中可下载的代码
公开(公告)号：US20050097194A1
公开(公告)日：2005-05-05
申请号：US10886272
申请日：2004-07-06
申请人： Clyde Eisenbeis , Brent Larson , Steve Packwood , Larry Brown
发明人： Clyde Eisenbeis , Brent Larson , Steve Packwood , Larry Brown
IPC分类号： G06F11/00 , G05B15/02 , G05B19/042 , G05B19/418 , G06F9/445 , G06F15/177 , G11C11/34
CPC分类号： G05B19/4185 , G05B19/0426 , G05B2219/23298 , G05B2219/25014 , G05B2219/25428 , G05B2219/31121 , G05B2219/31135 , G05B2219/31138 , Y02P90/18
摘要： The present invention is directed to a method of reprogramming a field device in a process control network using the standard communications protocol for the network, and a reprogrammable field device in the process control network adapted for being reprogrammed using the standard communications protocol for the network. The method and device of the present invention use the standard communications protocol to transmit the downloaded code to the field device and store the downloaded code in the field device while the device is enabled to perform process control. Once the new code is downloaded and stored in the field device, the field device is set to a steady state condition and/or disabled from performing process control, reprogrammed to execute the downloaded code, and reenabled to perform process control.
摘要翻译：本发明涉及一种使用网络的标准通信协议对过程控制网络中的现场设备进行重新编程的方法，以及适于使用网络的标准通信协议重新编程的过程控制网络中的可重新编程的现场设备。本发明的方法和装置使用标准通信协议将下载的代码发送到现场设备，并且在设备能够执行过程控制的同时将下载的代码存储在现场设备中。一旦将新代码下载并存储在现场设备中，现场设备被设置为稳定状态条件和/或禁止执行过程控制，重新编程以执行下载的代码，并重新启用以执行过程控制。

2. 发明授权

US06959356B2 Multi-protocol field device and communication method 有权
标题翻译：多协议现场设备及通讯方式
公开(公告)号：US06959356B2
公开(公告)日：2005-10-25
申请号：US09918258
申请日：2001-07-30
申请人： Steve Packwood , Brent H. Larson , Larry K. Brown
发明人： Steve Packwood , Brent H. Larson , Larry K. Brown
IPC分类号： G05B19/05 , H04L29/06 , G06F13/00 , G06F17/00
CPC分类号： H04L69/18 , G05B2219/25008 , G05B2219/25014
摘要： A multi-protocol smart field device uses a Fieldbus communication protocol to communicate process control information and uses a HART communication protocol to enable local configuration of the field device via a hand-held HART communicator. The multi-protocol smart field device includes a first communications interface communicatively coupled to a digital data bus that is adapted to process HART communications which are received from and which are sent to a HART hand-held communicator. The multi-protocol smart field device further includes a second communications interface communicatively coupled to the digital data bus that is adapted to process Fieldbus communications. Additionally, the multi-protocol smart field device includes a first filter coupled between the first communications interface and the digital data bus that substantially attenuates signals having frequencies associated with Fieldbus communications and a second filter coupled between the second communications interface and the digital data bus that substantially attenuates signals having frequencies associated with HART communications.
摘要翻译：多协议智能现场设备使用现场总线通信协议来传达过程控制信息，并使用HART通信协议来通过手持HART通信器实现现场设备的本地配置。多协议智能现场设备包括通信地耦合到数字数据总线的第一通信接口，其适于处理从HART手持通信器接收并且被发送到HART手持通信器的HART通信。多协议智能现场设备还包括通信地耦合到数字数据总线的第二通信接口，其适于处理现场总线通信。此外，多协议智能场设备包括耦合在第一通信接口和数字数据总线之间的第一滤波器，其基本上衰减具有与现场总线通信相关联的频率的信号，以及耦合在第二通信接口和数字数据总线之间的第二滤波器，基本衰减具有与HART通信相关联的频率的信号。

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