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Alstom: Ethernet for Plant Control System.

Publication: Control Engineering
Publication Date: 01-SEP-09 		Format: Online
Delivery: Immediate Online Access

Article Excerpt
Stephane Potier and Emma Cameron, Alstom Power

Alstom's distributed control system uses Modbus and Ethernet Powerlink fieldbuses to address interoperability, speed, determinism, and safety.

Designed for energy applications, the Alstom control system, Alspa ControPlant, requires the highest levels for reliability and availability for industrial applications. Alstom, a provider of energy management, power generation, and rail transport systems, uses Alspa ControPlant as its distributed control system (DCS). The incorporation of Modbus and Ethernet Powerlink into the DCS makes the network a central part of the control system.

Modbus TCP and Ethernet Powerlink function as the fieldbus for the Alspa ControPlant control system. This decision by Alstom required the integration of Powerlink technology characteristics into the control system. The most important of these characteristics is redundancy, which Alstom implemented as a system standard. The redundancy and determinism of Powerlink provides the necessary level of availability...

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