Masters Theses

Abstract

"This thesis explores the topics related to reconfiguration of Programmable Logic Controller's (PLC's) communications paths as it relates to network security and reliability. These paths are normally fixed, which creates a single fault point which can easily be disrupted by network failure or network based attack. With the ability for autonomous communications path reconfiguration these disruptions in communications can be avoided or bypassed. This work builds on these principles and a series of PLC programs are developed to facilitate several things: Scanning of the three different network types most common in PLC to PLC communications; a comprehensive network scan routine for locating multiple communications paths to available network enabled modules and devices; add-on functions for verifying and using these found communications paths; and MS Excel macros for documenting the found modules and devices along with their communications paths from the host processor"--Abstract, page iii.

Advisor(s)

Erickson, Kelvin T.

Committee Member(s)

Miller, Ann K.
Grant, Steven L.

Department(s)

Electrical and Computer Engineering

Degree Name

M.S. in Electrical Engineering

Publisher

Missouri University of Science and Technology

Publication Date

Fall 2009

Pagination

viii, 54 pages

Note about bibliography

Includes bibliographical references (pages 63-65).

Rights

© 2009 Curtis Alan Parrott, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Subject Headings

Communication -- Network analysis
Programmable controllers -- Design and construction
Programmable logic devices

Thesis Number

T 9590

Print OCLC #

612432720

Electronic OCLC #

501843412

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