Programmable logic controller performance enhancement by field programmable gate array based design
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Updated: Apr 20, 2026

The Modular Design and Production of an Intelligent Robot Based on a Closed-Loop Control Strategy
Published on: October 14, 2017
Dhruv Patel1, Jignesh Bhatt2, Sanjay Trivedi3
1Department of Instrumentation and Control Engineering , Sardar Vallabhbhai Patel Institute of Technology (SVIT), Vasad 388306, Gujarat, India.
Abstract:
PLC, the core element of modern automation systems, due to serial execution, exhibits limitations like slow speed and poor scan time. Improved PLC design using FPGA has been proposed based on parallel execution mechanism for enhancement of performance and flexibility. Modelsim as simulation platform and VHDL used to translate, integrate and implement the logic circuit in FPGA. Xilinx's Spartan kit for implementation-testing and VB has been used for GUI development. Salient merits of the design include cost-effectiveness, miniaturization, user-friendliness, simplicity, along with lower power consumption, smaller scan time and higher speed. Various functionalities and applications like typical PLC and industrial alarm annunciator have been developed and successfully tested. Results of simulation, design and implementation have been reported.
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