Schneider Electric Usa, Inc.

Schneider Electric Industries Sas

Schneider Automation Gmbh

Richard Blair

Kenneth Lee

Kerry Van De Steeg

Heinz Schaffner

Nitin Dhayagude

Torsten Joachim Brune

Sascha Michael Kreβ

Arun Ayyagari

John E Bush

Eric John Martens

David E Corman

Robert Goczalk

Sascha Michael Kress

Kristine Lane

Greg Kimberly

Lester Houston

Michael Streubel

A method is provided to detect a lost packet in an event-based communication system which uses a communication protocol without error correction or recovery. The method includes maintaining a plurality of counters for tracking an overall count of data packets transmitted, and a count of data packets transmitted for each event-type; and transmitting a sequence of data packets to at least one remote device. Each data packet includes information of an event-type from the plurality of different event-types and count information associated with the counters. The method further involves receiving a message from the at least one remote device that at least one data packet from the sequence of transmitted data packets is lost based on the count information from at least one transmitted data packet; and taking at least one action in response to the message.

Systems and methods for detecting lost packets in an event-based communication system

A device, such as a HART multiplexer, may allow access to one or more HART instruments from a single interface. The device may also support access to the HART instruments from a second interface. Requests for reading or writing data to or from a HART instrument may be combined at the device into a set of HART commands that may be more efficient than the HART commands that would be sent if each request was processed independently.

Optimized communications with HART instruments

A modular distributed I/O system for an industrial automation network that allows one or more modules of an island to be omitted without requiring reconfiguration of the system by maintaining a consistent I/O image representation of the distributed I/O network for various physical distributed I/O configurations, and managing reconfiguration changes using Virtual Placeholder objects.

Virtual placeholder configuration for distributed input/output modules

The invention described herein provides a system and method for distributing and applying a configuration file from a master device () to a slave device () in a distributed control system (). According to aspects of the invention, a configuration file is saved at a master device () and distributed to the slave device () via the data payload of a fieldbus protocol, such as the CANopen protocol. Aspects of the present invention may be used to further configure an I/O island or sub-network () that is attached to the slave device (). Further aspects of the present invention may be used to repair or replace failed devices in a distributed control system ().

Method and apparatus for distributing configuration files in a distributed control system

Each device in an industrial automation system network or other network may have its own associated one or more performance characteristics, such as response time and/or reset time of the network device. Data may be stored representing a plurality of performance characteristics each associated with a different one of a plurality of devices in the network including a first device and a second device. The stored data may be retrieved, representing the performance characteristic of the second device. The first device may communicate over the network with the second device in accordance with the performance characteristic of the second device.

Tuning of industrial automation system performance based on device operating characteristics

A modular distributed I/O system for an industrial automation network that allows one or more modules of an island to be omitted without requiring reconfiguration of the system by maintaining a consistent I/O image representation of the distributed I/O network for various physical distributed I/O configurations and managing reconfiguration changes remotely using Virtual Placeholder objects.

Remote virtual placeholder configuration for distributed input/output modules

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Plaistow, NH, United States of America

Richard Blair