نتایج جستجو برای: programmable logic controllers

تعداد نتایج: 205092  

Journal: :Applied sciences 2022

Intelligent robotic manufacturing cells must adapt to ever-varying operating conditions, developing autonomously optimal strategies achieve the best quality and overall productivity. cognitive behaviors are realized by using distributed controllers, in which complex control logics interact process a wide variety of input/output signals. In particular, programmable logic controllers (PLCs) robot...

2006
Guillermo A. Vera Jorge Parra Craig Kief Marios Pattichis

Programmable logic popularity among the industry has increased due to its capability to shorten leadtime while also increasing design flexibility. This has led to the need for engineers with experience in programmable devices and hardware description languages such as VHDL. In response to this, many universities are introducing this topic into undergraduate engineering curricula; facing a numbe...

Journal: :JDFSL 2015
Ken Yau K. P. Chow

Supervisory Control and Data Acquisition (SCADA) system is an industrial control automated system. It is built with multiple Programmable Logic Controllers (PLCs). PLC is a special form of microprocessor-based controller with proprietary operating system. Due to the unique architecture of PLC, traditional digital forensic tools are difficult to be applied. In this paper, we propose a program ca...

2012
Yazmin Maldonado Oscar Castillo

This paper proposes the design of a Type‐2 Fuzzy Logic Controller (T2‐FLC) using Genetic Algorithms (GAs). The T2‐FLC was tested with different levels of uncertainty to regulate velocity in a Direct Current (DC) motor. The T2‐FLC was synthesized in Very High Description Language (VHDL) code for a Field‐ programmable Gate Array (FPGA), using the Xilinx System ...

2008
Roque Alfredo Osornio-Rios Rene de Jesus Romero-Troncoso Gilberto Herrera-Ruiz Rodrigo Castañeda-Miranda

Reconfigurable logic has gained relevance in high-speed computer numerical control (CNC) digital controllers where high processing speed at the servo loop update time is critical. Reconfigurable devices like field programmable gate array (FPGA) have advantages over microprocessors and DSP with similar logic complexity because their open architecture makes them suitable for system on-a-chip appl...

Journal: :Journal of Systems Architecture 2002
Jae Ick Lee Sung Wook Chun Soon Ju Kang

Abstract A domain-specific virtual prototyping approach is proposed that can reduce the risks involved in programmable logic controllers (PLCs)-based embedded system programming. The proposed approach is based on an object-oriented real-time modeling concept, plus an algorithm is defined that can mechanically convert a PLC program, written in relay ladder logic (RLL), to a statechart model. In ...

2004
J. A. Ferreira J. L. Azevedo

Since their appearance, Programmable Logic Controllers (PLCs) have gain a very strong position in the industrial automation field. The growing complexity of the applications using this type of equipment strongly depends on programmers and maintenance personnel, and so more and better PLC education is of great demand nowadays. The present work deals with an object oriented simulator for the rela...

Journal: :Wireless Communications and Mobile Computing 2021

We present communication frameworks, models, and protocols of smart grid Internet Things (IoT) networks based on the IEEE IEC standards. The measurement, control, monitoring being achieved through phasor measurement unit (PMU) wide area (WAM) framework. WAM framework applied standard C37.118 exchange protocol to collect data from various substation devices. existing frameworks include 61850 pro...

Journal: :IEEE Transactions on Systems, Man, and Cybernetics 1995

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