Keyboards having multiple groups of keys in the management of a process control plant

US7869890B2 · kind B2 · utility

Assignee

• HONEYWELL INTERNATIONAL INC. · US

Inventors

• Ashish Sharma · New Delhi, IN
• Manish Sharma · Sunnyvale, US
• Srinivasan Rajagopal · Bengaluru, IN
• Rajesh Ramesh · Houston, US
• Benoy Joseph · Bengaluru, IN

Key dates

• Filing date: Sep 6, 2006
• Grant date: Jan 11, 2011
• Expiry date: Jul 23, 2029

Classification

• Technology area (CPC G): Physics
• CPC primary: G05B2219/24156
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A parallel operation keyboard (POK) which enables a user to provide multiple inputs simultaneously in managing a process control plant. A lock is provided to disable such simultaneous inputs. In an embodiment, multiple groups of keys are provided, with each group of keys being operable independently to modify the parameter value of a corresponding control loop. A network management station (NMS) and a server are designed to provide a suitable interface. In one implementation, each group of keys contains four keys respectively specifying increasing the parameter value, decreasing the parameter value, manual mode (in which the present level of the variable is controlled by the increase/decrease keys) and normal mode (in which the set point, i.e., the desired value, for the variable is controlled).