An application of FPGA to high-speed programmable controller: development of the conversion program from SFC to Verilog

Ikeshita, M.; Takeda, Yohei; Murakoshi, H.; Funakubo, Noboru; Miyazawa, Iko

doi:10.1109/etfa.1999.813151

Cited by 17 publications

(7 citation statements)

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“…The formal description of the PLC program can be either some highlevel functional representation or just a list of instructions in a programming language. Papers using high-level functional representations are [5]- [8], which are based on Petri nets and equivalent formulations and [9], which uses Sequential Function Charts. On the other hand, papers that work with individual PLC instructions are [10]- [11] and [2].…”

Section: Background and Related Workmentioning

confidence: 99%

FPGA implementation of PLC programs using automated high-level synthesis tools

Economakos¹,

Economakos

2008

2008 IEEE International Symposium on Industrial Electronics

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Although the performance of traditional PLC technology is adequate for the majority of industrial automation and control tasks, there exist a number of demanding applications, which need more powerful alternatives. One such alternative, which has received considerable research interest in recent years, is the implementation of control algorithms on FPGAs. An inherent difficulty of this approach is that it requires expertise in both industrial automation and FPGAs. In this paper we propose a fully automated design methodology for producing efficient FPGA implementations of PLC programs. The PLC programs can be prepared by automation experts using their familiar programming environments and the conversion to FPGA is done by automated high-level synthesis tools. The advantages of this approach are demonstrated on a number of standard industrial control applications.

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Section: Background and Related Workmentioning

confidence: 99%

FPGA implementation of PLC programs using automated high-level synthesis tools

Economakos¹,

Economakos

2008

2008 IEEE International Symposium on Industrial Electronics

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“…The formal description of the PLC program can be either some high-level functional representation or just a list of instructions in a programming language. Papers using high-level functional representations are [8]- [11], which are based on Petri nets and equivalent formulations and [12], which uses Sequential Function Charts. On the other hand, papers that work with individual PLC instructions are [13]- [14] and [15].…”

Section: Background and Related Workmentioning

confidence: 99%

An architectural exploration framework for efficient FPGA implementation of PLC programs

Economakos¹,

Economakos

2009

2009 17th Mediterranean Conference on Control and Automation

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This paper presents an automated framework for obtaining high-performance FPGA implementations of industrial automation and control algorithms coded as PLC programs. The proposed method is mainly targeting demanding applications, requiring lots of numerical computations. Based on previous experience, the proposed framework exploits Electronic System Level modeling methodologies and tools for high-level hardware synthesis. Since most of these tools are not compatible with PLC development environments, custom translating software built by using standard compiler techniques, can be employed for converting PLC programs to a form that can be understood by the selected tools. Furthermore, the translating software uses different coding templates to support microarchitectural level design trade-offs. Experimental results involving three wellknown industrial control algorithms show that appropriate coding styles can offer 2x performance improvements, being simple and syntactically similar to Statement List code.

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“…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. Silva et al [9,10] presented a hardware–software platform to implement logic controllers with both PLC and FPGA, where Petri net descriptions are translated into VHDL codes.…”

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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An application of FPGA to high-speed programmable controller: development of the conversion program from SFC to Verilog

Cited by 17 publications

References 0 publications

FPGA implementation of PLC programs using automated high-level synthesis tools

FPGA implementation of PLC programs using automated high-level synthesis tools

An architectural exploration framework for efficient FPGA implementation of PLC programs

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

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