Programmable logic controller (English Wikipedia)

Parr 1998, p. 438 Parr, E. A. (1998). "Computers and industrial control". Industrial Control Handbook. Industrial Press Inc. ISBN 0-8311-3085-7 – via Google Books.
Laughton & Warne 2002, p. 16/3: "The first industrial computer application was probably a system installed in an oil refinery in Port Arthur USA in 1959. The reliability and mean time between failure of computers meant that little actual control was performed." Laughton, M. A.; Warne, D. F. (2002). Electrical Engineer's Reference Book (16th ed.). Newnes. ISBN 9780750646376 – via Google Books.
Parr 1998, p. 437 Parr, E. A. (1998). "Computers and industrial control". Industrial Control Handbook. Industrial Press Inc. ISBN 0-8311-3085-7 – via Google Books.
Bolton 2015, p. 6 Bolton, William (2015). Programmable Logic Controllers (6th, revised ed.). Newnes. ISBN 9780081003534 – via Google Books.
Parr 1998, pp. 438, 450–451 Parr, E. A. (1998). "Computers and industrial control". Industrial Control Handbook. Industrial Press Inc. ISBN 0-8311-3085-7 – via Google Books.
Laughton & Warne 2002, chpt. 16 Laughton, M. A.; Warne, D. F. (2002). Electrical Engineer's Reference Book (16th ed.). Newnes. ISBN 9780750646376 – via Google Books.
Group, Career Communications (1993). US Black Engineer & IT. Career Communications Group. Retrieved 2025-06-09. {{cite book}}: |last= has generic name (help)
Bolton 2015, p. 5 Bolton, William (2015). Programmable Logic Controllers (6th, revised ed.). Newnes. ISBN 9780081003534 – via Google Books.
Bolton 2015, p. 7 Bolton, William (2015). Programmable Logic Controllers (6th, revised ed.). Newnes. ISBN 9780081003534 – via Google Books.
Bolton 2015, pp. 12–13 Bolton, William (2015). Programmable Logic Controllers (6th, revised ed.). Newnes. ISBN 9780081003534 – via Google Books.
Bolton 2015, pp. 23–43 Bolton, William (2015). Programmable Logic Controllers (6th, revised ed.). Newnes. ISBN 9780081003534 – via Google Books.
Bolton 2015, pp. 16–18 Bolton, William (2015). Programmable Logic Controllers (6th, revised ed.). Newnes. ISBN 9780081003534 – via Google Books.
Bolton 2015, pp. 19–20 Bolton, William (2015). Programmable Logic Controllers (6th, revised ed.). Newnes. ISBN 9780081003534 – via Google Books.
Lin, Sally; Huang, Xiong (9 August 2011). Advances in Computer Science, Environment, Ecoinformatics, and Education, Part III: International Conference, CSEE 2011, Wuhan, China, August 21-22, 2011. Proceedings. Springer Science & Business Media. p. 15. ISBN 9783642233449 – via Google Books.
Parr 1998, p. 446 Parr, E. A. (1998). "Computers and industrial control". Industrial Control Handbook. Industrial Press Inc. ISBN 0-8311-3085-7 – via Google Books.
Laughton & Warne 2002, section 16.4.8 Laughton, M. A.; Warne, D. F. (2002). Electrical Engineer's Reference Book (16th ed.). Newnes. ISBN 9780750646376 – via Google Books.
Parr 1998, p. 451 Parr, E. A. (1998). "Computers and industrial control". Industrial Control Handbook. Industrial Press Inc. ISBN 0-8311-3085-7 – via Google Books.
Bolton 2015, p. 15 Bolton, William (2015). Programmable Logic Controllers (6th, revised ed.). Newnes. ISBN 9780081003534 – via Google Books.

control.com (Global: low place; English: low place)

"State Machine Programming in Ladder Logic". Retrieved 2024-08-18.

controleng.com (Global: low place; English: low place)

"A-B PLC Inventor, Dr. Odo Struger, Dies". Control Engineering. 1999-02-01. Archived from the original on 2020-02-24. Retrieved 2020-02-24.

controlsystemsandautomation.com (Global: low place; English: low place)

"PLC Programming Basics Part I". Control Systems & Automation. 2019-07-23. Retrieved 2020-02-23.

dosupply.com (Global: low place; English: low place)

"Wrapping Your Head around Ladder Logic". DoSupply.com. 27 August 2018. Retrieved 19 October 2020.

isa.org (Global: low place; English: low place)

Strothman, Jim (2003-08-01). "Leaders of the pack". ISA. Archived from the original on 2017-08-08. Retrieved 2020-02-24.

isisvarese.edu.it (Global: low place; English: low place)

"Programmable logic controller for automation systems" (PDF). www.isisvarese.edu.it. Retrieved April 8, 2024.

itworldcanada.com (Global: low place; English: low place)

Li, Tom (2021-03-01). "Max level vulnerability found in Logix PLCs | IT World Canada News". ITWorldCanada.com. Retrieved 2021-03-07.

jimpinto.com (Global: low place; English: low place)

"A Short History of Automation Growth". Retrieved 2008-06-20.

learntechnique.com (Global: low place; English: low place)

Miller, Alex (2014-01-29). "What is a PLC? And where did they come from?". Technique Learning Solutions. Retrieved 2025-08-24.

libelium.com (Global: low place; English: low place)

development.libelium.com

"Mobus Networking Guide: Introduction". Libelium.com. Retrieved 27 October 2022.

mroelectric.com (Global: low place; English: low place)

Wayand, Ben (20 March 2020). "What Is a PLC?". MROElectric.com. MRO Electric. Retrieved 11 May 2021.

nytimes.com (Global: 7^th place; English: 7^th place)

query.nytimes.com

Brier, Steven E. (1998-12-27). "O. Struger, 67, A Pioneer In Automation". The New York Times. Retrieved 2020-02-24. Dr. Odo J. Struger, who invented the programmable logic controller, which makes possible modern factory automation, amusement park rides and lavish stage effects in Broadway productions, died on December 8 in Cleveland. He was 67.

plcopen.org (Global: low place; English: low place)

"Status IEC 61131-3 Standard". PLCopen. 2018-07-19. Retrieved 2020-04-01.

replacenc.com (Global: low place; English: low place)

Hackett, Nicholas (20 March 2025). "Migrating from PLC5 to ControlLogix". www.replacenc.com. Replace Industrial. Retrieved 8 August 2025.

researchgate.net (Global: 120^th place; English: 125^th place)

"A mini view of PLC". www.researchgate.net. September 2020. Retrieved April 8, 2024.

tofinosecurity.com (Global: low place; English: low place)

Byres (May 2011). "PLC Security Risk: Controller Operating Systems - Tofino Industrial Security Solution". TofinoSecurity.com.

web.archive.org (Global: 1^st place; English: 1^st place)

Strothman, Jim (2003-08-01). "Leaders of the pack". ISA. Archived from the original on 2017-08-08. Retrieved 2020-02-24.
"A-B PLC Inventor, Dr. Odo Struger, Dies". Control Engineering. 1999-02-01. Archived from the original on 2020-02-24. Retrieved 2020-02-24.

Programmable logic controller (English Wikipedia)

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