公开(公告)号：US20070183108A1

公开(公告)日：2007-08-09

申请号：US11626760

申请日：2007-01-24

Applicant: Ronald Uhlenberg ,  Stephen Seberger ,  Riyaz Ali ,  Jimmie Snowbarger ,  Clyde Eisenbeis

Inventor： Ronald Uhlenberg ,  Stephen Seberger ,  Riyaz Ali ,  Jimmie Snowbarger ,  Clyde Eisenbeis

IPC: H02H3/20

CPC classification number: H02H9/008

Abstract: A device intended to meet flameproof approval requirements is configured to have two compartments separated by an energy-limiting barrier. The first compartment of the device houses the wiring terminations that bear ignition-capable energy and, therefore, must be flameproof. The energy-limiting barrier is configured to limit the energy that can reach the second compartment to a level that is not ignition capable. This allows the second compartment to be safe without meeting the flameproof requirements, and allows user-interface elements such as switches and indicators to be designed in a more cost-effective manner.

Abstract translation: 旨在满足防火认证要求的设备被配置为具有由能量限制屏障隔开的两个隔间。 该设备的第一个隔间容纳具有点火能量的接线端子，因此必须是隔爆型的。 能量限制障碍物被配置为将能够到达第二隔室的能量限制在不能点火的水平。 这允许第二隔间安全，而不符合防火要求，并允许以更具成本效益的方式设计诸如开关和指示器之类的用户界面元件。

公开(公告)号：US20050097194A1

公开(公告)日：2005-05-05

申请号：US10886272

申请日：2004-07-06

Applicant: Clyde Eisenbeis ,  Brent Larson ,  Steve Packwood ,  Larry Brown

Inventor： Clyde Eisenbeis ,  Brent Larson ,  Steve Packwood ,  Larry Brown

IPC: G06F11/00 ,  G05B15/02 ,  G05B19/042 ,  G05B19/418 ,  G06F9/445 ,  G06F15/177 ,  G11C11/34

CPC classification number: G05B19/4185 ,  G05B19/0426 ,  G05B2219/23298 ,  G05B2219/25014 ,  G05B2219/25428 ,  G05B2219/31121 ,  G05B2219/31135 ,  G05B2219/31138 ,  Y02P90/18

Abstract: 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.

Abstract translation: 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。