公开(公告)号：US06898542B2

公开(公告)日：2005-05-24

申请号：US10404156

申请日：2003-04-01

申请人： Michael G. Ott ,  Gary Law ,  Dennis Stevenson ,  Riyaz Ali ,  Mark Nixon ,  Tim Forsythe

发明人： Michael G. Ott ,  Gary Law ,  Dennis Stevenson ,  Riyaz Ali ,  Mark Nixon ,  Tim Forsythe

IPC分类号： G01M19/00 ,  G05B9/02 ,  G05B15/02 ,  G05B19/048 ,  G05B23/00 ,  G05B23/02 ,  G06F11/27 ,  G06F15/00 ,  G06F19/00 ,  H04L12/26

CPC分类号： G05B23/0256 ,  G05B9/02 ,  G05B2219/24054 ,  G05B2219/33331

摘要： A process control or safety system within a process plant uses one or more testing blocks to effect the timely and safe operation of on-line testing routines within field devices, such as valves, used in the process control or safety system. These testing blocks, which are easy to implement and to place in the process control or safety system, enable the periodic or on-demand testing of field devices to be integrated into the normal and on-going operation of the process control or safety system without causing scheduling or connection problems and without the need to rely on maintenance or other personnel, thereby providing better monitoring of the operational status of the field devices used within the process control and safety systems. This functionality is especially important in safety systems, in which it is desirable to timely monitor or assess the operational status of the devices used to shut the process down when an unsafe condition arises, so as to assure that initiation of a shut down by the safety system actually results in a shut down of the system.

摘要翻译： 过程工厂内的过程控制或安全系统使用一个或多个测试块来实现在过程控制或安全系统中使用的现场设备（例如阀门）内的在线测试程序的及时和安全的操作。 这些易于实施和放置在过程控制或安全系统中的测试块使现场设备的定期或按需测试能够集成到过程控制或安全系统的正常和持续运行中，而无需 导致调度或连接问题，而不需要依赖维护或其他人员，从而更好地监控过程控制和安全系统中使用的现场设备的操作状态。 该功能在安全系统中尤为重要，在安全系统中，需要及时监控或评估在出现不安全状况时关闭过程的设备的运行状态，以确保通过安全性启动关闭 系统实际上导致系统关闭。