Academic literature on the topic 'Programmable logic controllers (PLC)'

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Journal articles on the topic "Programmable logic controllers (PLC)"

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Garanina, Natalia Olegovna, Igor Sergeevich Anureev, Vladimir Evgenyevich Zyubin, Sergey Mikhailovich Staroletov, Tatiana Victorovna Liakh, Andrey Sergeevich Rozov, and Sergei Petrovich Gorlatch. "Temporal Logic for Programmable Logic Controllers." Modeling and Analysis of Information Systems 27, no. 4 (December 20, 2020): 412–27. http://dx.doi.org/10.18255/1818-1015-2020-4-412-427.

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We address the formal verification of the control software of critical systems, i.e., ensuring the absence of design errors in a system with respect to requirements. Control systems are usually based on industrial controllers, also known as Programmable Logic Controllers (PLCs). A specific feature of a PLC is a scan cycle: 1) the inputs are read, 2) the PLC states change, and 3) the outputs are written. Therefore, in order to formally verify PLC, e.g., by model checking, it is necessary to describe the transition system taking into account this specificity and reason both in terms of state transitions within a cycle and in terms of larger state transitions according to the scan-cyclic semantics. We propose a formal PLC model as a hyperprocess transition system and temporal cycle-LTL logic based on LTL logic for formulating PLC property. A feature of the cycle-LTL logic is the possibility of viewing the scan cycle in two ways: as the effect of the environment (in particular, the control object) on the control system and as the effect of the control system on the environment. For both cases we introduce modified LTL temporal operators. We also define special modified LTL temporal operators to specify inside properties of scan cycles. We describe the translation of formulas of cycle-LTL into formulas of LTL, and prove its correctness. This implies the possibility ofmodel checking requirements expressed in logic cycle-LTL, by using well-known model checking tools with LTL as specification logic, e.g., Spin. We give the illustrative examples of requirements expressed in the cycle-LTL logic.
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Rogers, Steve. "The PLC workbook—programmable logic controllers made easy." Control Engineering Practice 5, no. 5 (May 1997): 733. http://dx.doi.org/10.1016/s0967-0661(97)85451-2.

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Huyck, Bart, Hans Joachim Ferreau, Moritz Diehl, Jos De Brabanter, Jan F. M. Van Impe, Bart De Moor, and Filip Logist. "Towards Online Model Predictive Control on a Programmable Logic Controller: Practical Considerations." Mathematical Problems in Engineering 2012 (2012): 1–20. http://dx.doi.org/10.1155/2012/912603.

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Given the growing computational power of embedded controllers, the use of model predictive control (MPC) strategies on this type of devices becomes more and more attractive. This paper investigates the use of online MPC, in which at each step, an optimization problem is solved, on both a programmable automation controller (PAC) and a programmable logic controller (PLC). Three different optimization routines to solve the quadratic program were investigated with respect to their applicability on these devices. To this end, an air heating setup was built and selected as a small-scale multi-input single-output system. It turns out that the code generator (CVXGEN) is not suited for the PLC as the required programming language is not available and the programming concept with preallocated memory consumes too much memory. The Hildreth and qpOASES algorithms successfully controlled the setup running on the PLC hardware. Both algorithms perform similarly, although it takes more time to calculate a solution for qpOASES. However, if the problem size increases, it is expected that the high number of required iterations when the constraints are hit will cause the Hildreth algorithm to exceed the necessary time to present a solution. For this small heating problem under test, the Hildreth algorithm is selected as most useful on a PLC.
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Awtoniuk, Michał, Łukasz Ślizak, and Marcin Daniun. "AUTOTUNING OF PID CONTROLLER BY MEANS OF HUMAN MACHINE INTERFACE DEVICE." Journal of Technology and Exploitation in Mechanical Engineering 2, no. 1 (December 26, 2016): 26–31. http://dx.doi.org/10.35784/jteme.513.

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More and more control systems are based on industry microprocessors like PLC controllers (Programmable Logic Controller). The most commonly used control algorithm is PID (Proportional-Integral-Derivative) algorithm. Autotuning procedure is not available in every PLC. These controllers are typically used in cooperation with HMI (Human Machine Interface) devices. In the study two procedures of autotuning of the PID controller were implemented in the HMI device: step method and relay method. Six tuning rules for step methods and one for relay method were chosen. The autotuning procedures on simulated controlled object and PLC controller without build-in autotuning were tested. The object of control was first order system plus time delay.
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Bogdan, Laurean. "Using the Microcontroller and the PLC in a RPP Robot Control." Advanced Materials Research 463-464 (February 2012): 1721–24. http://dx.doi.org/10.4028/www.scientific.net/amr.463-464.1721.

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This paper presents some aspects regarding the possibility of combining microcontroller and programmable logic controller (PLC) for robot control. The RPP robot is designed and manufactured within the Faculty of Engineering from “Lucian Blaga” University of Sibiu, as a patent: BRAŢ TELESCOPIC, Nr. 112418 B1, Int.CI.6 B 25 J 18/02, from 17.02.1997. Classical systems for programming and control of industrial robot are based on numerical control equipment, developed around a PC. Programmable Logic Controllers (PLC) haves proven to be viable alternatives to driving machine tools, industrial systems and Robots. Microcontrollers as computers offer advantage due to programmable inputs and outputs ports. The application of a microcontroller and PLC in control of a robot is presented in this paper.
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Zhang, Xin. "Research and Design of Temperature Monitoring System in Industry Applications Based on PLC." Applied Mechanics and Materials 345 (August 2013): 364–67. http://dx.doi.org/10.4028/www.scientific.net/amm.345.364.

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Many industrial sites require real-time monitoring of temperature, to prevent the temperature is too high or too low damage to the equipment. This article on the basis of research on the structure of programmable logic controller and it is given a comparative study based on programmable logic controller hardware design and the current temperature sensor. The design of PLC control flow, combined with the actual situation, the completion of a complete temperature monitoring system based on programmable controllers control scheme, which given the specific design methods and control architecture.
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Novozhilov, B. M. "New Technologies in Training Programming PLC." Mechanical Engineering and Computer Science, no. 8 (September 11, 2017): 30–39. http://dx.doi.org/10.24108/0817.0001300.

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It is noted that the effective application of programmable logic controllers in automated control systems in launching complexes is closely linked to the training of specialists, capable to carry out the development of application software. In connection with complexity of debugging of the developed programs on real process equipment an analysis of the possible variants of simulation of control processes is performed and effectiveness of virtualization of control objects on computers is noted. The developed applications of Real Games-company to create virtual control objects using 3D-graphics for training to usage of programmable logic controllers in industrial control systems are considered. The perspectives for the application software of Real Games-company in the training of specialists for automation systems of technological equipment in launching complexes are evaluated.
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Azkarate, Igor, Mikel Ayani, Juan Carlos Mugarza, and Luka Eciolaza. "Petri Net-Based Semi-Compiled Code Generation for Programmable Logic Controllers." Applied Sciences 11, no. 15 (August 3, 2021): 7161. http://dx.doi.org/10.3390/app11157161.

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Industrial discrete event dynamic systems (DEDSs) are commonly modeled by means of Petri nets (PNs). PNs have the capability to model behaviors such as concurrency, synchronization, and resource sharing, compared to a step transition function chart or GRAphe Fonctionnel de Commande Etape Transition (GRAFCET) which is a particular case of a PN. However, there is not an effective systematic way to implement a PN in a programmable logic controller (PLC), and so the implementation of such a controller outside a PLC in some external software that will communicate with the PLC is very common. There have been some attempts to implement PNs within a PLC, but they are dependent on how the logic of places and transitions is programmed for each application. This work proposes a novel application-independent and platform-independent PN implementation methodology. This methodology is a systematic way to implement a PN controller within industrial PLCs. A great portion of the code will be validated automatically prior to PLC implementation. Net structure and marking evolution will be checked on the basis of PN model structural analysis, and only net interpretation will be manually coded and error-prone. Thus, this methodology represents a systematic and semi-compiled PN implementation method. A use case supported by a digital twin (DT) is shown where the automated solution required by a manufacturing system is carried out and executed in two different devices for portability testing, and the scan cycle periods are compared for both approaches.
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Zhang, De Min, and Shi Bo Li. "Research on the Design and Manufacture of Steam Cleaning Machine Based on PLC." Applied Mechanics and Materials 721 (December 2014): 322–25. http://dx.doi.org/10.4028/www.scientific.net/amm.721.322.

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In this paper, the programmable logic controller (PLC) produced the steam cleaning machine controller based on PLC and foundation design, and steam cleaning device controlled the process of the realization .The programmable logic controller PLC programming and logic design, system realizes according to different artifact types, complete cleaning, blowing, drying the corresponding action. This system after careful design, manufacturing and detailed inspection, and after the running test, the experimental results shows that: as long as the proper maintenance and proper use of equipment, the project can improve the efficiency to a great extent.
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Hudedmani, Mallikarjun G., R. M. Umayal, Shiva Kumar Kabberalli, and Raghavendra Hittalamani. "Programmable Logic Controller (PLC) in Automation." Advanced Journal of Graduate Research 2, no. 1 (July 1, 2017): 37–45. http://dx.doi.org/10.21467/ajgr.2.1.37-45.

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Dissertations / Theses on the topic "Programmable logic controllers (PLC)"

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Mohan, Ashwin. "A fuzzy controller developed in RSLogix 5000 using ladder logic and function blocks implemented on a Control Logix PLC /." free to MU campus, to others for purchase, 2004. http://wwwlib.umi.com/cr/mo/fullcit?p1420941.

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Tesfaye, Mussie. "Secure Reprogramming of a Network Connected Device : Securing programmable logic controllers." Thesis, KTH, Kommunikationssystem, CoS, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-104077.

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This is a master’s thesis project entitled “Secure reprogramming of network connected devices”. The thesis begins by providing some background information to enable the reader to understand the current vulnerabilities of network-connected devices, specifically with regard to cyber security and data integrity. Today supervisory control and data acquisition systems utilizing network connected programmable logic controllers are widely used in many industries and critical infrastructures. These network-attached devices have been under increasing attack for some time by malicious attackers (including in some cases possibly government supported efforts). This thesis evaluates currently available solutions to mitigate these attacks. Based upon this evaluation a new solution based on the Trusted Computing Group (TCG’s) Trusted Platform Modules (TPM) specification is proposed. This solution utilizes a lightweight version of TPM and TCG’s Reliable Computing Machine (RCM) to achieve the desired security. The security of the proposed solution is evaluated both theoretically and using a prototype. This evaluation shows that the proposed solution helps to a great extent to mitigate the previously observed vulnerabilities when reprogramming network connected devices. The main result of this thesis project is a secure way of reprogramming these network attached devices so that only a valid user can successfully reprogram the device and no one else can reprogram the device (either to return it to an earlier state, perhaps with a known attack vector, or even worse prevent a valid user from programming the device).
Avhandlingen börjar med att ge lite bakgrundsinformation för att läsaren att förstå de nuvarande sårbarheten i nätverksanslutna enheter, särskilt när det gäller IT-säkerhet och dataintegritet. Idag övervakande kontroll och datainsamlingssystem använder nätverksanslutna programmerbara styrsystem används allmänt i många branscher och kritisk infrastruktur. Dessa nätverk anslutna enheter har under ökande attacker under en tid av illvilliga angripare (inklusive i vissa fall eventuellt regeringen stöds insatser). Denna avhandling utvärderar för närvarande tillgängliga lösningar för att minska dessa attacker. Baserat på denna utvärdering en ny lösning baserad på Trusted Computing Group (TCG) Trusted Platform Modules (TPM) specifikation föreslås. Denna lösning använder en lätt version av TPM och TCG:s pålitliga dator (RCM) för att uppnå önskad säkerhet. Säkerheten i den föreslagna lösningen utvärderas både teoretiskt och med hjälp av en prototyp. Utvärderingen visar att den föreslagna lösningen bidrar i stor utsträckning för att minska de tidigare observerade sårbarheter när omprogrammering nätverksanslutna enheter.  Huvudresultatet av denna avhandling projektet är ett säkert sätt omprogrammering dessa nätverksanslutna enheter så att endast ett giltigt användarnamn framgångsrikt kan omprogrammera enheten och ingen annan kan programmera enheten (antingen att återställa den till ett tidigare tillstånd, kanske med en känd attack vector, eller ännu värre förhindra en giltig användare från programmering av enheten).
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Axelsson, Per, and Christoffer Hedlund. "Upprustning och modernisering av kraftstation vid Årbols såg och kvarn." Thesis, University West, Department of Technology, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-375.

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Johansson, Adam, and Tim Johansson. "Code generation for programmable logic controllers : Evaluating model-based engineering practices in a real-world context." Thesis, Högskolan i Skövde, Institutionen för informationsteknologi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-18714.

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The industrial manufacturing of today is achieved through the use of programmable logic controllers (PLC). The way PLCs are programmed remains largely unchanged since their conception 40 years ago, but complexity and software size have increased, and requirements have becomemore elaborate. Model-driven engineering (MDE) practices, formal verification and automated testing could help manage these challenges. This study seeks to improve development practices in the context of a company that delivers automation projects. Through design science methodology the state of the field is investigated and an artefact is developed. The artefact shows potential benefits resulting from the introduction of model-driven code generation, which is evaluated through an experiment with engineers. Our results indicate the engineers may benefit from incorporating generated code in their work.
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Oskarsson, Daniel, and Jan-Erik Henriksson. "Modernisering av marint styr- och övervakningsskåp." Thesis, University West, Department of Technology, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-392.

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OKUMA, Shigeru, Tatsuya SUZUKI, Takashi MUTOU, and Eiji KONAKA. "Optimal Design of Sensor Parameters in PLC-Based Control System Using Mixed Integer Programming." Institute of Electronics, Information and Communication Engineers, 2005. http://hdl.handle.net/2237/14990.

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Jowkar, Saeid. "The Application of Programmable Logic Controller (PLC) to Control Temperature in Cold-room Based on TIA PORTAL Software." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.

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A temperature sensor is a device to measure the temperature through an electrical signal. It requires a thermocouple or resistance temperature detectors (RTD) and will interface with a programmable logic controller (PLC). A temperature transmitter is a device that connects to a temperature sensor to transmit the signal elsewhere for monitoring and control purposes that its role is to convert the temperature sensor's signal to a 0-10V DC voltage in the PLC. The PLC voltage signal setting is compared to the temperature deviation after the Proportional Integral Derivative (PID) operation. Then, the system will issue a temperature control signal to achieve the cooling system voltage control so that it implements continuous monitoring and temperature control. The temperature control system in the industrial field has a certain value that it is an important factor for controlling temperature. A certain value of the temperature of the desired environment has to be set with a minimum and maximum set-point temperature which is suitable for that environment and the set-point value can be variable and can be changed with Human Machine Interface (HMI) easily.
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Tarasso, Markus, and Daniele Usai. "Utveckling av kontrollrumsstyrning : För DC-generator genom PLC och HMI." Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-22104.

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Projektet går ut på att ersätta den befintliga styrningen av en DC-generator för 1200 kV med en fjärrstyrning från kontrollrummet via optolänk. Den nya styrningen ska utgöras av ett PLC-system (Programmable Logic Controller) som manövreras med hjälp av ett HMI – Human Machine Interface. Bakgrunden till projektet härrör från att den befintliga styrutrustningen är opålitlig samt styrs i en farlig miljö. Rapporten går igenom hur befintlig styrutrustning fungerar samt dess ingående komponenter, hur ett PLC-system fungerar med dess bakgrund och olika programmeringsspråk. Även programmeringen och byggnationen av det nya systemet avhandlas. I slutet av rapporten ges en genomgång av de provkörningar som utförts för att säkerställa att alla funktioner fungerar som tänkt. Resultat av provkörningarna ges och diskussion förs kring projektet. Projektet är utfört åt högspänningsgruppen på RISE i Borås som använder generatorn bland annat vid kalibrering av spänningsdelare. Det nya styrsystemet innefattar alla av den tidigare styrutrustningens funktioner och några nya funktioner så som överströms- och överspänningsskydd vilka slår från spänningsmatningen om dessa begränsningar överskrids. Att styrutrustningen nu är placerad i kontrollrumsmiljö gör att operatören kan hantera utrustningen utan att vara i närheten av farlig spänning.
The report aims to replace the current control equipment for a DC-generator for 1200 kV by remote control from control room through optical fibre link. The new control will be a PLC system controlled by a HMI – Human Machine Interface. The background to the project is that the existing control equipment is unreliable and controlled in a dangerous environment. The report shows how the current control equipment works and its constituent components, how a PLC-system works with its background and different programming languages. This report will also describe how the programming and building of the hardware are done. In the end of this report are going through a test run to confirm that the system is working properly. Result of the test run are given and some discussion. The project is initiated by the high voltage group at RISE in Borås, who are using the DC-generator for instance while calibrating voltage dividers. The new control system contains all of the functions from the earlier control system but also some new functions such as overcurrent and overvoltage protection who turns off power supply if the limits are exceeded. The control system is now located in the control room so that the operator can use the system without being close to high voltage.
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Alavizadeh, Zahra. "PLC Controlled System for Local Humidity Management in Electronic Enclosures." Thesis, Jönköping University, JTH, Computer and Electrical Engineering, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-13148.

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This master thesis is about investigation a power efficient anti-moisture device thatcan be implemented in electronic enclosures in severe climatic environments.First, some of the existing knowledge and previous works were introduced. Then arelevant theoretical background including three main approaches in humiditymanagement are described, comparison between the enclosure heaters and localheaters, some psychrometics concepts that have been used in the project, heattransfer fundamentals, environmental test basics, some humidity and temperaturesensing techniques, computational fluid dynamics, programmable logic controlfundamentals, comparison PLCs with microcontrollers was provided.A series experiments have been performed in order to find the power efficient andmost effective anti-moisture method. Based on the analysis of the experiment data,the local heater system has been designed. CFD assisted parametric study of thelocal heater has been performed in order to find the best feasible design includingthe size and location. The local heater has been built based on the results ofparametric study. Different materials have been tested in laboratory in order tofind the proper material for final prototype of heater. The implemented localheater has been integrated with programmable logic control device. The controlalgorithm has been developed for activation/deactivation of local heater. The logiccontrolled PCB local heater has been experimentally evaluated.In the end the results achieved from environmental test have been presented andanalyzed. Some conclusions on the results and also future work have been discussed.

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Mertlík, Daniel. "Inteligentní dvou-ramenný žonglovací stroj." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230043.

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This thesis describes the design and implementation of device called Intelligent two-arm juggling machine. The role of the demonstration project is to control rotational movement of the arm so that the concept of the machine there to swap the ball to the opposite side shoulder. The project is divided into two theses, which this proposal addresses the above mentioned tasks, the machine and place the second level ofcooperative governance through visualization.
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Books on the topic "Programmable logic controllers (PLC)"

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Rohner, Peter. PLC Automation with Programmable Logic Controllers. London: Macmillan Education UK, 1996. http://dx.doi.org/10.1007/978-1-349-14267-5.

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Clements-Jewery, K. The PLC workbook: Programmable logic controllers made easy. London: Prentice Hall, 1996.

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Dropka, Ed. Toshiba medium PLC primer. Boston: Butterworth-Heinemann, 1996.

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Huang, Songwei, and Jinhui Zou. Dian qi kong zhi yu PLC ying yong ji shu. Beijing Shi: Dian zi gong ye chu ban she, 2012.

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PLC, automation with programmable logic controllers: A textbook for engineers and technicians. Houndmills, Basingstoke [England]: Macmillan, 1996.

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Rohner, Peter. PLC: automation with programmable logic controllers: A textbook for engineers and technicians. Sydney: UNSW Press, 1996.

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Programmable logic controllers. New York: Glenco, 1994.

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Bolton, W. Programmable logic controllers. 4th ed. Amsterdam: Elsevier, 2007.

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Programmable logic controllers. Englewood Cliffs, NJ: Regents/Prentice Hall, 1994.

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(Firm), Knovel, ed. Programmable logic controllers. 4th ed. Amsterdam: Elsevier/Newnes, 2006.

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Book chapters on the topic "Programmable logic controllers (PLC)"

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Rohner, Peter. "PLC Programming Concepts." In PLC Automation with Programmable Logic Controllers, 12–27. London: Macmillan Education UK, 1996. http://dx.doi.org/10.1007/978-1-349-14267-5_2.

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Rohner, Peter. "Timers in PLC." In PLC Automation with Programmable Logic Controllers, 45–54. London: Macmillan Education UK, 1996. http://dx.doi.org/10.1007/978-1-349-14267-5_5.

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Rohner, Peter. "Counters in PLC." In PLC Automation with Programmable Logic Controllers, 55–65. London: Macmillan Education UK, 1996. http://dx.doi.org/10.1007/978-1-349-14267-5_6.

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Rohner, Peter. "Programming Logic Functions on PLC." In PLC Automation with Programmable Logic Controllers, 28–35. London: Macmillan Education UK, 1996. http://dx.doi.org/10.1007/978-1-349-14267-5_3.

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Dey, Chanchal, and Sunit Kumar Sen. "Programmable Logic Controller (PLC)." In Industrial Automation Technologies, 15–82. First edition. | Boca Raton, FL : CRC Press, 2020.: CRC Press, 2020. http://dx.doi.org/10.1201/9780429299346-2.

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Rohner, Peter. "PLC Programming and Hardware Fundamentals." In PLC Automation with Programmable Logic Controllers, 1–11. London: Macmillan Education UK, 1996. http://dx.doi.org/10.1007/978-1-349-14267-5_1.

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Rohner, Peter. "Sequential PLC Machine Control Design." In PLC Automation with Programmable Logic Controllers, 84–117. London: Macmillan Education UK, 1996. http://dx.doi.org/10.1007/978-1-349-14267-5_8.

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Rohner, Peter. "Editing, Diagnosing and Documenting PLC Programs." In PLC Automation with Programmable Logic Controllers, 174–89. London: Macmillan Education UK, 1996. http://dx.doi.org/10.1007/978-1-349-14267-5_11.

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Rohner, Peter. "Bistable and Monostable Outputs in PLC." In PLC Automation with Programmable Logic Controllers, 36–43. London: Macmillan Education UK, 1996. http://dx.doi.org/10.1007/978-1-349-14267-5_4.

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Rohner, Peter. "Compound Building Blocks for PLC Programming." In PLC Automation with Programmable Logic Controllers, 66–83. London: Macmillan Education UK, 1996. http://dx.doi.org/10.1007/978-1-349-14267-5_7.

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Conference papers on the topic "Programmable logic controllers (PLC)"

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Sages, Terence M. "Programmable Logic Controllers." In ASME 1991 Citrus Engineering Conference. American Society of Mechanical Engineers, 1991. http://dx.doi.org/10.1115/cec1991-3705.

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The use of the programmable logic controller has advanced tremendously since its introduction in the late 1960’s. The programmable logic controller, affectionately known as the PLC in today’s industries, was first introduced as an electrical control relay replacer. The purpose of this paper is to assist those who are considering the application of a PLC in their facility to better understand where programmable logic controller technology has advanced to today. Paper published with permission.
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Fasano, Raymond, Christopher Lamb, Mohamed El Genk, Timothy Schriener, and Andrew Hahn. "Emulation Methodology of Programmable Logic Controllers for Cybersecurity Applications." In 2020 International Conference on Nuclear Engineering collocated with the ASME 2020 Power Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/icone2020-16245.

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Abstract A programmable logic controller (PLC) emulation methodology can dramatically reduce the cost of high-fidelity operational technology (OT) network emulation without compromising specific functionality. A PLC emulation methodology is developed as part of an ongoing effort at the University of New Mexico’s Institute for Space and Nuclear Power Studies (UNM-ISNPS) in collaboration with Sandia National Laboratories (SNL) to develop an emulytic™ platform to support cybersecurity analyses of the instrumentation and control (I&C) systems of pressurized water reactors (PWRs). This methodology identifies and characterizes key physical and digital signatures of interest. The obtained and displayed digital signatures include the network response, traffic, and software version, while the selected physical signatures include the actuation response time and sampling time. An extensive validation analysis is performed to characterize the signatures of the real, hardware-based PLC and the emulated PLC. These signatures are then compared to quantify differences and identify optimum settings for the emulation fidelity.
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Pham, Kinh D., Ja-Mie Luey, and Darin Schroyer. "Traction Power Substation Protection and Controls Using Programmable Logic Controllers." In ASME/IEEE 2007 Joint Rail Conference and Internal Combustion Engine Division Spring Technical Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/jrc/ice2007-40044.

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A number of microprocessor-based digital devices with communication capabilities have been manufactured for traction power substations. These devices include protective relays, fault recorders, and metering units. One such device is the SIEMENS SITRAS DPU96 relay that provides over-current and rate-of-rise protection for faults on DC traction power distribution system. To fully utilize this digital technology, Programmable Logic Controller (PLC) was the best mean of collecting and organizing data from these devices locally at the traction power substation and also provide easy interface with the SCADA system. PLC was also used for high rail-to-earth potential monitoring and protection. The trip characteristics of this relay require adjustability over the voltage ranges normally from 40Vdc to 160Vdc and time-delay range from 10ms to 3 seconds which can be easily accomplished with PLC programming. This paper describes the applications of digital relays, human machine interface (HMI), and PLC in a traction power substation.
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DeGuglielmo, Nicolas P., Saurav M. S. Basnet, and Douglas E. Dow. "Introduce Ladder Logic and Programmable Logic Controller (PLC)." In 2020 Annual Conference Northeast Section (ASEE-NE). IEEE, 2020. http://dx.doi.org/10.1109/aseene51624.2020.9292646.

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Rahim, A'zraa Afhzan Ab, Mohd Hazwan Md Shah, Ili Shairah Abdul Halim, and Siti Lailatul Mohd Hassan. "Programmable Logic Controller (PLC) for polymer mixing tank." In 2012 IEEE Symposium on Computer Applications and Industrial Electronics (ISCAIE). IEEE, 2012. http://dx.doi.org/10.1109/iscaie.2012.6482084.

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NAIL, WILLIAM, PATRICK SCHEUERMANN, and KERN WITCHER. "The use of programmable logic controllers (PLC) for rocket engine component testing." In 27th Joint Propulsion Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1991. http://dx.doi.org/10.2514/6.1991-2403.

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Sapena-Bano, Angel, Ruben Puche-Panadero, Marcos Perez-Vazquez, Juan Perez-Cruz, Javier Martinez-Roman, Manuel Pineda-Sanchez, Victor Perez-Vazquez, and Marina Perez-Vazquez. "Automatic translation of Programmable Logic Controllers (PLC) control programs in packaging machinery." In 2014 9th International Microsystems, Packaging, Assembly and Circuits Technology Conference (IMPACT). IEEE, 2014. http://dx.doi.org/10.1109/impact.2014.7048380.

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Evans, D. S. "Condition monitoring of sequential fluid power systems using programmable logic controllers." In IEE Colloquium on `Application of Advanced PLC (Programmable Logic Controller) Systems with Specific Experiences from Water Treatment'. IEE, 1995. http://dx.doi.org/10.1049/ic:19950740.

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Beyerle, Werner. "An affordable and modular development environment for PLC-Training." In Third International Conference on Higher Education Advances. Valencia: Universitat Politècnica València, 2017. http://dx.doi.org/10.4995/head17.2017.5102.

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This paper focuses mainly on educational programs in the fields of mechatronics and electrical engineering. Building, programming and testing electrical circuits with programmable logic controllers (PLC) is an integral part of practical final exams in this sector.
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Moallim, Ali, Jae-Min Lee, and Dong-Seong Kim. "Wireless control and monitoring using Programmable Logic Controller (PLC)." In 2017 17th International Conference on Control, Automation and Systems (ICCAS). IEEE, 2017. http://dx.doi.org/10.23919/iccas.2017.8204259.

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Reports on the topic "Programmable logic controllers (PLC)"

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KOCH, M. R. Saltwell PIC Skid Programmable Logic Controller (PLC) Software Configuration Management Plan. Office of Scientific and Technical Information (OSTI), November 1999. http://dx.doi.org/10.2172/798656.

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WHITE, K. A. Saltwell Leak Detector Station Programmable Logic Controller (PLC) Software Configuration Management Plan (SCMP). Office of Scientific and Technical Information (OSTI), November 2000. http://dx.doi.org/10.2172/805460.

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Hance, R. D0 General Support: The Use of Programmable Logic Controllers (PLCS) at D0. Office of Scientific and Technical Information (OSTI), May 2000. http://dx.doi.org/10.2172/1032083.

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Stouffer, Keith, Joe Falco, and Karen Scarfone. Guide to Industrial Control Systems (ICS) Security : Supervisory Control and Data Acquisition (SCADA) Systems, Distributed Control Systems (DCS), and Other Control System Configurations such as Programmable Logic Controllers (PLC). National Institute of Standards and Technology, May 2013. http://dx.doi.org/10.6028/nist.sp.800-82r1.

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Stouffer, Keith, Joe Falco, and Karen Scarfone. Guide to Industrial Control Systems (ICS) Security - Supervisory Control and Data Acquisition (SCADA) systems, Distributed Control Systems (DCS), and other control system configurations such as Programmable Logic Controllers (PLC). Gaithersburg, MD: National Institute of Standards and Technology, June 2011. http://dx.doi.org/10.6028/nist.sp.800.82.

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Stouffer, Keith, Joe Falco, and Karen Scarfone. Guide to Industrial Control Systems (ICS) security : Supervisory Control and Data Acquisition (SCADA) systems, Distributed Control systems (DCS), and other control system configurations such as Programmable Logic Controllers (PLC) : recommendations of the National Institute of Standards and Technology, Computer security. Gaithersburg, MD: National Institute of Standards and Technology, June 2011. http://dx.doi.org/10.6028/nist.sp.800-82.

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