The application of reconfigurable logic to controller design

Węgrzyn, Marek; Adamski, Marian; Monteiro, João L.

doi:10.1016/s0967-0661(98)00075-6

Cited by 39 publications

(7 citation statements)

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“…For example, Adamski and Monteiro [4,5] presented a design methodology that translates ‘interpreted Petri net specification’ into hardware description languages. Wegrzyn et al [6,7] presented a framework that transforms rule‐based descriptions (e.g., interpreted Petri net) into logic descriptions (e.g., VHDL). Ikeshita et al [8] presented a conversion program that translates sequential function chart (SFC) description into Verilog‐HDL for logic synthesis.…”

Section: Background and Related Studiesmentioning

confidence: 99%

An FPGA implementation of hard‐wired sequence control system based on PLC software

Ichikawa

Akinaka

Hata

et al. 2011

IEEJ Transactions Elec Engng

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Although a programmable logic controller (PLC) has been widely adopted for the sequence control of industrial machinery, its performance does not always satisfy the recent requirements in large and highly responsive systems. With the state‐of‐the‐art field programmable gate array (FPGA) technology, it is possible to implement a control program with hard‐wired logic for higher response and reduced implementation cost/space. This approach is also worthwhile for transmigration of legacy PLC software into forthcoming FPGA‐based control hardware. This study presents a systematic method to implement a hard‐wired sequence control from PLC software. PLC instructions are converted into VHDL codes, and then implemented as logic circuit with various peripheral functions. Productive PLC programs were examined with Mitsubishi Electric FX2N PLC and Altera Stratix II FPGA, and were shown to fit into a common FPGA chip. A straightforward Sequential design was estimated to be 184 times faster than PLC, while a performance‐oriented Flat design was estimated to be 44 times faster than Sequential design (i.e., 8050 times faster than PLC). A practical perfect layer winder system was actually built and successfully operated with our FPGA control board, whose logic design was implemented with our tools. © 2011 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

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Section: Background and Related Studiesmentioning

confidence: 99%

An FPGA implementation of hard‐wired sequence control system based on PLC software

Ichikawa

Akinaka

Hata

et al. 2011

IEEJ Transactions Elec Engng

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“…After verification it is possible to transform Petri net model into HDLs model (VHDL [12,22] and Verilog [10,18]) and alternatively into EDIF or XNF netlist format [17]. Such prepared models are also simulated and synthesized using other academic [3,4,20] or commercial CAD systems. Fig.…”

Section: Penlogic Systemmentioning

confidence: 99%

“…Concurrent Logic Controller can be presented using a concurrent view of the modeled system behavior [1,5,20]. The logic controller model should retain the natural partitioning of the behavior imposed by the designer.…”

Section: Petri Nets Decompositionmentioning

confidence: 99%

9 PeNLogic – System for Concurrent Logic Controllers Design

Węgrzyn

2011

Design of Digital Systems and Devices

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Abstract. In the paper the CAD system dedicated for modeling, verification, and synthesis of concurrent controllers modeled by interpreted Petri net is presented. Petri net model can be prepared as graph or as textual form. Controllers specified by Petri nets can be analyzed and implemented using method suitable for such model. For verification of Petri net another part of system is used. Moreover, the results of verification are decomposition of net into several communicating state machines (as finite state machines, FSMs). After verification it is possible to transform Petri net model into HDLs model (VHDL and Verilog) and alternatively into EDIF or XNF netlist format. Such prepared models are also simulated and synthesized using other academic or commercial CAD systems. The system has been developing at University of Zielona Góra. Development of new methods of modeling, verification and synthesis has been contributed to make an attempt the new integrated version of the system. In addition, using of Java environment gives opportunity to work out the system that is platform independent. IntroductionThe specific application often dictates the system design requirements, such as modularity and flexibility. In general, the design procedure involves the integration of analytical and graphical descriptions. Graphical descriptions, such as control-interpreted Petri nets [11], SFC (Sequential Function Chart) [8] and Grafcet [7], provide established techniques for proper system designs. They have helped industrial engineers to understand the system behavior and performance over many years.A behavioral representation describes the system's functionality independently of its implementation. It treats a system as a black box, and defines how the black box responds to any combination of input values. The process of designing a system proceeds from a behavioral specification (SFC diagram or Petri net) to a programmable logic implementation (FPGA, Field Programmable Gate Array). A design in purely behavioral form, like a Petri net, is converted into an intermediate rule-based description, void of any technology-specific implementation details. The final FPGA implementation is generated by automatic synthesis using CAD

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“…A red one (10) indicating that there is a system failure. The lifting trolley must go down to the loading position so that the operator can place an empty clothes hanger on it and fill it with wrapped garments.…”

Section: Industrial Applicationmentioning

confidence: 99%

An Integrated System for Logic Controller Implementation Using FPGAs

Silva

Quintans

Lago

et al. 2006

IECON 2006 - 32nd Annual Conference on IEEE Industrial Electronics

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At present, logic controllers use sequential programmable logic controllers (PLC) and industrial computers with scan strategies and special instructions for parallel events detection. Also, nowadays, reconfigurable devices improvement allows the implementation of parallel control strategies in a more natural way. This paper describes an integrated system for logic controller implementation using FPGA. It consists of a hardware card and a design automation environment which improves design performance. The hardware, as well as doing typical automation tasks, contributes to achieving additional characteristics such as simulation and monitoring. To show the integrated system applications, a real industrial project is undertaken.

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The application of reconfigurable logic to controller design

Cited by 39 publications

References 0 publications

An FPGA implementation of hard‐wired sequence control system based on PLC software

An FPGA implementation of hard‐wired sequence control system based on PLC software

9 PeNLogic – System for Concurrent Logic Controllers Design

An Integrated System for Logic Controller Implementation Using FPGAs

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