Rockwell Automation Technologies Incorporated

August B Schrab

James B Vitrano

Kurt R Hohensee

Daniel Joseph Middlestetter

John James Jenks

Sivaram Balasubramanian

Scott D Braun

Jimmy See Yong Koh

Teck Siang Tan

William A Bartz

Robert Alexander

Mohammadreza Serjooei

Jaime D Fernandes

For uninterrupted network communications, a method detects a protected reset at a network device. In response to the protected reset, the method maintains communication functions of a communication module. The communication module communicates with other network devices using the communication functions. In response to the protected reset, the method resets the network device without resetting the communication module.

Protected reset for network device

In some embodiments, a motor drive system includes a communication subassembly electrically coupled to a control subassembly for providing communication between the control subassembly and at least one external device. The control subassembly and the communication subassembly transmit and receive control data independently of messaging data, greatly enhancing performance and reducing the workload of processors on the control subassembly and communication subassembly. Additionally, the control subassembly and the communication subassembly transmit message data via sequence count based messaging. Communications between the communication subassembly and the control subassembly may include a series of timeout periods and retries, increasing reliability.

Enhanced motor drive communication system and method

A motor drive system includes a control module and a power module for generating control signals and power signals, respectively, for driving an electric motor. An add-on module or subassembly is physically positionable between the control and power modules, and communicates with the control module to allow for communication with external devices.

Modular motor drive communication system and method

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Saukville, WI, United States of America

August B Schrab