Rockwell Automation Technologies Incorporated

Allen-bradley Company, LLC

Robert D Law

Mark A Flood

Scott A Pierce

William B Cook

Patrick D Telljohann

James A Bizily

Robert R Sepsi

Dennis M Wylie

James Furukawa

Paul Griesmer

Nicholas R Goebel

Amy L Stachowiak

Bradley J Bittorf

Jack F Toma

D Alan Graham

David E Mohnke

A method for providing power to devices in a network and coordinating actions of multiple power supplies on the network is described. The method may include maintaining connectivity of communication signals and ground between upstream and downstream portions of the network relative to a power supply, while terminating power from an upstream power supply and taking over power supply functions for downstream devices. This may be achieved by including a logic feature within one or more of the multiple power supplies that monitors a power status of an upstream power supply and/or the power status of the associated power supply. When the logic feature detects a power cycle, it initiates a coordinated power cycle of the associated power supply and/or other networked power supplies.

System and method for employing an on-machine power supply with monitoring and control capability

A computer program to assist in programming an industrial control system provides a programmer with a functional description of the data of low-level devices in the industrial controller, as gleaned from electronic data sheets, whose data is extracted and combined with mapping data used during the configuration of the industrial controller. The functional description may be used to create a reference for the programmer that may be incorporated into the control program source file.

Integrated programmer reference for industrial control device data

The present invention constitutes a data crossloading system for use with a programmable controller system having primary and secondary (or 'back-up') systems each of which have redundant hardware components and have data structures associated with these components. The present invention further relates to the interconnection of the hardware components and to the processes for providing redundant data structures which enable a secondary or back-up system to rapidly and effectively assume control when a malfunction occurs in a primary control system. Both systems are connected via the same remote data links to common I/O racks which interface to sensing and output devices on the equipment being controlled. Data structure information in the primary system is specially crossloaded to the secondary system so that when a malfunction occurs that shuts down the primary system, the secondary system can begin execution of the same control programs and input and output the same data to the same I/O racks based on up to date data from the primary system. The crossloading of the data is accomplished through the use of special backup modules in both the primary and secondary (backup) control systems connected by a high speed communications link. Communications take place through the use of program utilities which establish a tightly coupled communications network between the primary and secondary systems. Additionally, on-line editing is enabled in stages so that when either control system can not properly execute the edit it is rejected. This system insures that edits can not take place in the primary system without being concurrently implemented in the secondary system.

Programmable controller backup system

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Independence, OH, United States of America

Robert D Law