Factory-automation-cell control language based on Petri nets and its application to PC-based controller

Koyama, Masahiro; Miyake, Norihisa; Fujii, Kenjiro

doi:10.1109/etfa.1999.815430

Cited by 3 publications

(5 citation statements)

References 11 publications

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“…A similar problem exists in the case of our previous method [9] for executing a CCL program. In this method, when the number of nets executed concurrently is increased, the scan time becomes long and the response to the state changes becomes slow.…”

Section: Problems In Program Execution By Conventional Methodsmentioning

confidence: 72%

“…To realize such exclusive operations, semaphores are prepared between the interpreters. The execution process for the normal program by using the normal interpreter is almost the same as that mentioned in the previous paper [9], except that it performs the exclusive process with the high-speed interpreter. First, in the execution of an S-net block of each unit, the normal interpreter gets the semaphore to perform operations relating state transitions exclusively.…”

Section: High-speed Execution Of An Internal-code Programmentioning

confidence: 93%

“…5, and the arrows indicate the relation between the SCL description and the internal codes. Each internal-code instruction consists of an operation code and subcodes [9].…”

Section: Translation Of High-speed Net and Internal-code Generationmentioning

confidence: 99%

“…In our previous studies [7][8][9], we proposed the basic concepts and description of CCL, a program-development cycle using CCL, and an execution method for a CCL program. In the current study, we propose a new method for describing a CCL program, which needs a quick response to state changes, and another method for executing the program at high speed by using an interruption process.…”

Section: Introductionmentioning

confidence: 99%

“…As a practical programming tool whose description is very similar to that of conventional design methods for FA systems, we developed Cell Control Language (CCL), a new programming method [7][8][9]. In conventional program development, detailed control specifications are described with STDs in the program design phase, and programs for each controller are written in the coding phase.…”

Section: Introductionmentioning

confidence: 99%

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A high‐speed‐execution method for a program written in factory‐automation‐cell control language

Koyama¹,

Miyake²,

Fujii³

et al. 2003

Electrical Engineering Japan

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SUMMARYA new programming method called Cell Control Language (CCL) for factory-automation systems has been developed. In CCL programming, an action sequence of each functional unit in each operation mode is first described as a net module. This net module is a subclass of Petri nets, and this subclass is equivalent to a state-transition diagram (a conventional design method). Several net modules are merged and translated into an internal code program, which is executed in a cell controller. To improve the ability of the controller to respond to state changes, we developed two new methods based on CCL. One is that for efficiently describing a CCL program, which needs a quick response to state changes, and the other is that for executing the program in a short cycle. The execution method was applied to an actual cell controller, which confirmed that it can improve the ability to respond to state changes without reducing the total control performance.

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Section: Problems In Program Execution By Conventional Methodsmentioning

confidence: 72%

Section: High-speed Execution Of An Internal-code Programmentioning

confidence: 93%

“…5, and the arrows indicate the relation between the SCL description and the internal codes. Each internal-code instruction consists of an operation code and subcodes [9].…”

Section: Translation Of High-speed Net and Internal-code Generationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A high‐speed‐execution method for a program written in factory‐automation‐cell control language

Koyama¹,

Miyake²,

Fujii³

et al. 2003

Electrical Engineering Japan

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Evaluation of Factory-Automation-Cell Control Language through Application to Real Systems.

et al. 2003

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High-Speed Execution Method for a Program in Factory-Automation-Cell Control Language

et al. 2002

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A new programming method, named cell control language (CCL), for factory-automation systems has been developed. In CCL programming, an action sequence of each functional unit in each operation mode is described as a net module. This net module is a subclass of Petri nets, and this subclass is equivalent to a state transition diagram, which is a conventional design method. Moreover, several net modules are merged and translated into an internal code program, which is executed in a cell controller.An efficient method to describe a high-speed program, which needs a quick response to a short-cycle state change, and to execute the program by using an interruption process was developed. Applying this method to an actual cell controller, we confirmed that it can increase the ability to respond to the state change without reducing total control performance.

show abstract

Factory-automation-cell control language based on Petri nets and its application to PC-based controller

Cited by 3 publications

References 11 publications

A high‐speed‐execution method for a program written in factory‐automation‐cell control language

A high‐speed‐execution method for a program written in factory‐automation‐cell control language

Evaluation of Factory-Automation-Cell Control Language through Application to Real Systems.

High-Speed Execution Method for a Program in Factory-Automation-Cell Control Language

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