Abstract: A method and corresponding apparatus for communicating a controller area network (CAN) message between a sending node, attached to a sending CAN network, and a receiving node, where the sending and receiving nodes are interconnected by a network communicating according to transmission control protocol/Internet protocol (TCP/IP). The invention provides for having the sending node extract the CAN message payload (arbitration field, control field and data field if any) from a CAN message, having it embed the CAN message payload in a TCP/IP frame as the TCP/IP data field of the TCP/IP frame, having it refer to a routing form to determine the address on the TCP/IP network of the receiving node; and having it transmit the TCP/IP frame over the TCP/IP network using the address for the receiving node from the routing form.
Abstract: A method and apparatus for utilizing a controller to monitor a flow volume in a fluid transportation system. The controller being operably connected to a module. The module being operably connected to a flow meter. The module senses a series of pulses that represent a known fluid volume in a proving loop. The module also measures the fluid density of the fluid in the proving loop. The controller utilizes a dynamic density of the fluid and the sensed pulses to determine a correction factor to more accurately calculate the flow volume through the measuring flow meter. The controller ensures the accuracy of the flow meter by utilizing the partial pulses sensed during a meter-proving period by using an interpolation method.
Abstract: The present invention relates to a system for accessing a programmable automatism unit (10) based on a WAP architecture, from at least a standalone communicating mobile device (40), such as a portable telephone, which integrates a navigator (41) complying with WAP architecture. This system includes a Web server (20), embedded in a piece of automatism equipment of the automatism unit (10), capable of generating static or dynamic informative data according to the WML language, and a network interface (30), connected to the Web server (20) through a network (25) of the Internet type, which authorizes access to said informative data from a WAP navigator (41) of a mobile device (40) communicating through a wireless network (35), in such a way that a user of such a WAP navigator (41) may access functions for monitoring, viewing and controlling the automatism unit (10).
Type:
Application
Filed:
April 2, 2001
Publication date:
November 6, 2003
Applicant:
Schneider Automation
Inventors:
Jean-Marie Stawikowski, Christophe Vincent, Christian Hardy, Robert Rousseau
Abstract: An apparatus and method of generating an application for a control system. A control process is defined by a physical model and a topological model. An application generator utilizes the physical and topological models to generate an application for the control system.
Abstract: A programmable logic controller for use as part of an industrial control system or as part of an automated system and a corresponding method, the controller including an interface to the Internet, and including a web server allowing a remote computer to access web pages maintained by the controller providing information relevant to the control function of the controller such as control sensor readings and, optionally, information about the status of the control system. The web server is implemented as part of the controller in such a way that the controller scan rate (the rate at which the ladder logic for all associated control system devices is repeated) is unaffected by execution of the web server.
Type:
Grant
Filed:
October 10, 2000
Date of Patent:
October 28, 2003
Assignee:
Schneider Automation Inc.
Inventors:
David T. Lindner, Andrew G. Swales, Merrill W. Harriman, James W. McGlaughlin, III
Abstract: A redundant automation system including a set of redundant PLCs including of a pair of PLCs each equipped with two communication couplers. The first coupler in the first PLC is connected to the first coupler in the second PLC through a first Ethernet network and the second coupler in the first PLC is connected to the second coupler in the second PLC through a second Ethernet network, connecting them to at least one remote equipment. Each of the PLCs has a hardware address and an IP address, the set of redundant PLCs being accessible from outside by a single IP address assigned to a first normal PLC, and a switching mechanism assigns the address related to normal operation to the second PLC, the IP address of the standby operation being assigned to the first PLC.
Abstract: An automation device comprising a modular assembly associated with a hardware element. This assembly includes in the primary group of modules a bus coupler 20, a feeder unit 21 to distribute feeder power at voltages Uin, Uout for the automated units, functional modules 22 and a terminating module 30.
Type:
Application
Filed:
April 14, 2003
Publication date:
October 16, 2003
Applicant:
Schneider Automation Inc.
Inventors:
Robert Bet, Michel Girard, Philippe Rix
Abstract: A method for optimizing communication in a network involving wanted and unwanted network messages wherein a set of filters are configured to accept all wanted network messages and minimize the acceptance of unwanted messages in accordance with a selection criteria. A first filter is configured to receive all wanted messages. The first filter includes a defined bit and an undefined bit. Each defined bit is either in a first state or in a second state. A second filter is set equal to the first filter. The first filter and the second filter compose a first set of filters. Potential configurations of the first set of filters are determined wherein each potential configuration is capable of accepting all wanted network messages. The potential configurations are optimized wherein the optimized configuration ensures acceptance of all wanted messages and reduces the amount of accepted unwanted messages.
Abstract: A method for monitoring a factory process is disclosed. The factory process comprises a plurality of tasks. The method comprises displaying the factory process in real-time as a three-dimensional, free-camera, computer generated representation of the process as a whole, selectively displaying each of the tasks in real-time as a three-dimensional, free-camera, computer generated representation of the respective task.
Abstract: Electrical apparatus comprising a base which can accommodate a constituent member, and which can be fitted to a holding rail, in particular a top hat-type rail, via a locking device with two opposite fastening catches (30), one of which is joined to a slide (31).
Type:
Application
Filed:
January 24, 2003
Publication date:
July 31, 2003
Applicant:
Schneider Automation Inc.
Inventors:
Robert Bet, Frederic Delvaux, Michel Girard, Philippe Rix