Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 18 of 18 for “"Programmable Logic Controller"”.
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The programmable logic controller : its prehistory, emergence and application
Programmable Logic Controllers (PLCs) are widely used devices controlling industrial machines and processes and many other diverse applications, requiring primarily, combinatorial logic and sequential control. The PLC is a hidden technology, little known by the general public and overlooked in …
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Mechanical Design and Learned Control System Development of Fiber Extrusion Device on Industrial Programmable Logic Controller (PLC) Platform.
… PID (Proportional–Integral–Derivative) controllers. This thesis attempts to showcase the work done to establish a framework and a “digital twin” for deploying advanced learned control algorithms on industrial platforms such as Programmable Logic Controllers (PLC) based on machine …
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Design and development of a precision packing stage and master control system for an automated vial packaging machine
… motion control system was developed using a Programmable Logic Controller with Human Machine Interface, as well as an Arduino[superscript TM] Leonardo with externally integrated stepper motor controllers. Finally, a machine vision system was integrated to provide information on product …
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Development of cost effective PLC training kit by using arduino platform (PLCDUINO)
Programmable Logic Controller (PLC) is an industry demand practical based subject which required hands on experience of programming and hardware wiring. Because of such nature, the course is usually delivered with the help of PLC training kit. The kit generally consists of PLC incorporating …
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Development of control system to automate the PCB pin insertion process
… is discussed, along with the programming of the Programmable Logic Controller for both subsystems. The development of the machine vision application used to sort the right pin types is described, with an emphasis on the image processing tools used. Applicability and robustness of these tools in …
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Alternate Fault testing on a Bus on a Dynamic Position Vessel
… properly by using a fault signal using from Programmable Logic Controller in conjunction with the protection relays. A working PSCAD model of Transocean's DEEPWATER CHAMPION was developed using a one line diagram. Using the developed PSCAD model three phase fault currents could be calculated …
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Layer to layer registration of a slurry-based 3D printing machine
… was calculated and actuated using a PMAC controller running programmable logic controller programs. The line spacing controller is successful in improving line spacing and registration over open loop performance. However, the degree of line position improvement is not certain due to …
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Optimization of thermoplastic composite manufacturing with digital process intelligence
… inexpensive system, comprised of a series of Programmable Logic Controller (PLC)s, Raspberry Pi-based telemetry units, and SQL database, captures high resolution data across hundreds of shop-floor sensors. Since this effort began, scrap rates for the targeted product dropped 85%. We also …
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Controlled virtual time advancement in conjoined emulation and network simulation
… applicability of TimeKeeper by implementing a Programmable Logic Controller (PLC) network emulation tool which can be used to emulate industrial Supervisory Control and Data Acquisition (SCADA) systems. Over the course of the design of these two case studies, we unearthed and fixed a subtle …
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Ultrasonic Real-Time Quality Monitoring Of Aluminum Spot Weld Process
… characterization and communicates with the robot programmable logic controller (PLC). The system has been fully developed for the inspection of spot welds manufactured in steel alloys, and has been mainly applied in the automotive industry. In recent years, a variety of materials have been …
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Efficient Symbolic Execution of Concurrent Software
… for generating tests for the multitasking Programmable Logic Controller (PLC) programs written in languages specified by the IEC 61131-3 standard. The last method is adversarial symbolic execution, a technique for detecting concurrency related side-channel information leaks by analyzing the …
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A TRANSPORT MECHANISM FOR REALTIME APPLICATIONS
… real time data is captured ii using devices like programmable logic controller by a realtime server that runs a classic microkernel based QNX operating system.
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Development of D-Statcom in hardware in the loop system for voltage SAG mitigation
… equipment such as adjustable speed drive (ASD), programmable logic controller (PLC), information technology equipment in power electronics applications such as energy-efficient lighting brings about a complete change in the nature of the electrical load. These loads are simultaneously major …
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Mitigating Insider Threat Risks in Cyber-physical Manufacturing Systems
… Layer Image Auditing System (LIAS) and Secure Programmable Logic Controller (SPLC). Also, four case studies are designed and presented based on the two models and evaluated by an Insider Attack Scenario Assessment Framework. The framework investigates the system's security vulnerabilities and …
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THE DESIGN AND IMPLEMENTATION OF A SYSTEM FOR MACHINE MONITORING
… system: this system integrated with existing programmable logic controller (PLC) systems and wirelessly transmitted condition data. The research began by exploring machine monitoring strategies and the individual sensor topic areas. Methods for interfacing with PLCs and microcontroller-based …
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Trusted Software Updates for Secure Enclaves in Industrial Control Systems
… the ICS environment. Previously proposed process controller security architectures maintain safe and stable plant operation even in the presence of attacks that exploit ICS vulnerabilities. Security architectures are process control system-level solutions that leverage isolated and trusted …
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A Trusted Autonomic Architecture to Safeguard Cyber-Physical Control Leaf Nodes and Protect Process Integrity
… by initiating switch-over to a verified backup controller. Subsystems adhere to strict trust requirements safeguarding them from adversarial intrusion. The preemptive detection schemes, switch-over logic, backup controller, and process communication are all trusted components that are separated …