Designing secure networks for process control

Author

Byres, Eric J.

Author_Institution

Artemis Ind. Networking, Vancouver, BC, Canada

fYear

1999

fDate

21-25 June 1999

Firstpage

63

Lastpage

67

Abstract

With the evolution of data communications in process control, network problems have taken on new proportions. The connections with a DCS and PLC system or from the plant network to the control network are vital to production, yet can be an invitation to problems. This paper looks at several real-life network disasters and discusses strategies for avoiding them. Solutions, including the use of VLANs (virtual local area networks), are discussed. A case history from a pulp and paper mill illustrates how a VLAN can be implemented to protect multiple DCS and PLC systems from each other and from business users.

Keywords

distributed control; local area networks; paper industry; process control; programmable controllers; protocols; Tembec paper mill; communication protocols; data communications; distributed control system; mill-wide information system; network design; network disasters; network hardware; network problems; paper mill; process control; programmable controller; pulp mill; secure networks design; virtual local area networks; Communication system control; Control systems; Data communication; Distributed control; History; Local area networks; Paper mills; Process control; Production systems; Programmable control;

fLanguage

English

Publisher

ieee

Conference_Titel

Pulp and Paper, 1999. Industry Technical Conference Record of 1999 Annual

Conference_Location

Seattle, WA, USA

Print_ISBN

0-7803-5526-1

Type

conf

DOI

10.1109/PAPCON.1999.779346

Filename

779346