06061603 is referenced by 339 patents and cites 5 patents.

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.

Title
System for remotely accessing an industrial control system over a commercial communications network
Application Number
927005
Publication Number
6061603
Application Date
October 16, 1998
Publication Date
May 9, 2000
Inventor
Dennis J W Dube
Pelham
NH, US
Rodolfo G Belliardi
Malden
MA, US
Richard A Baker Jr
West Newbury
MA, US
Allan Tanzman
Newton Center
MA, US
A Dean Papadopoulos
Groton
MA, US
Agent
Larry I Golden
Michael J Femal
Assignee
Schneider Automation
IL, US
IPC
G05B 9/02
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