CPDev Engineering Environment for Modeling, Implementation, Testing, and Visualization of Control Software

Jamro, Marcin; Rzońca, Dariusz; Sadolewski, Jan; Stec, Andrzej; Świder, Zbigniew; Trybus, Bartosz; Trybus, Leszek

doi:10.1007/978-3-319-05353-0_9

Cited by 25 publications

(8 citation statements)

References 14 publications

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“…Politechnika Rzeszowska od kilku lat współpracuje z firmą Praxis Automation Technology B.V. z Holandii przy wdrożeniu pakietu CPDev [6] do tworzenia systemów monitoringu i nawigacji statków, rozpoczęto również wspólne prace nad prototypem autopilota [8], z Rzeszowem odpowiedzialnym za jego implementację. Jednym z istotnych problemów były zasady strojenia poszczególnych bloków PID autopilota, ponieważ klasyczne podręczniki [3][4][5] nie są w tym zakresie wystarczająco szczegółowe.…”

Section: ŏžǔƿȭǔƭ˹ ą˹ǔƞƭʁƙ ʊ˹ǔƞƭʁ˘žźɡʁ˘ɩƭƞˁɩɡǚunclassified

“…Założenie (a) będzie spełnione, jeśli wyznacznik mianownika transmitancji G loop wyniesie zero, co daje warunek na K oraz określa wartości podwójnego bieguna s 1,2 : Ostatecznie, nastawy regulatora PID, otrzymane na podstawie powyższych równań, wynoszą (6) Zwróćmy uwagę, iż ze względu na równanie (1), nastawy regulatora (6) zależą od prędkości statku V. Testy czułości wykazały, że ustawienia należy zmodyfikować, jeśli zmiana prędkości przekroczy 20 %. Odpowiedzi skokowe dla regulatora PID przy nastawach (6) dla różnych prędkości V pokazano na rys.…”

Section: ʹɩ ăǜʁˁǘǜˁʁř řˁǜɂɡǔǚɂǜř ǘˁʁʊˁunclassified

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A prototype of an advanced ship autopilot implemented in the CPDev environment

Świder¹

2021

PAR

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Ship autopilots can be divided into conventional, only capable of maintaining a given course, and advanced, which can additionally follow a “track” connecting the given navigation points along the ship’s route. The article presents the structure of the prototype autopilot of the ship implemented in the CPDev environment and the formulas allowing to determine the settings of the course controller (PID) and track controller (PI) in the cascade control. For each of them, individual design parameters were adopted to define the dynamics of the closed control loop. These rules were applied in the software of the autopilot prototype, created in cooperation with a Dutch company designing control and visualization systems for ships.

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Section: ŏžǔƿȭǔƭ˹ ą˹ǔƞƭʁƙ ʊ˹ǔƞƭʁ˘žźɡʁ˘ɩƭƞˁɩɡǚunclassified

Section: ʹɩ ăǜʁˁǘǜˁʁř řˁǜɂɡǔǚɂǜř ǘˁʁʊˁunclassified

A prototype of an advanced ship autopilot implemented in the CPDev environment

Świder¹

2021

PAR

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“…Środowisko inżynierskie CPDev [1,2] jest opracowanym w Katedrze Informatyki i Automatyki Politechniki Rzeszowskiej zestawem narzędzi pozwalającym na programowanie sterowników PLC (ang. Programmable Logic Controller) i PAC (ang.…”

Section: Wprowadzenieunclassified

“…Pokazane na rysunku 4 zmienne Valves [1] i Tank [2]. Temperature są wizualizowane na jednym ekranie procesowym i ich wartości muszą być cyklicznie odczytywane przez panel HMI.…”

Section: Example Location Of Variables In the Controller's Memoryunclassified

Performance Improvement of PLC - HMI Communication in CPDev Engineering Environment

Rzońca¹

2020

PAR

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ŎƬ˘˹ŘǚŘ ʊǔǄ ȭŘ ǘɁʁ˘˿ʊǜŘȭǔƬ ˘ Řʁǜ˿ǘˁȦˁ ȭŘ ˹ŘʁˁȭǘŘƋǒ ǚǔƋƬȭƋǖǔ ,ʁƬŘǜǔ˸Ƭ ,ɁȧȧɁȭʊ Ę˘ȭŘȭǔƬ ŘˁǜɁʁʊǜ˹Ř ʯƖ1 ÄŽʊǜʁŘƋǜƕ HMI (Human-Machine Interface) panels are commonly used in industrial automation systems. They facilitate the visualization of industrial process control as well as enable the change of parameters. The values displayed on a HMI are read from a controller or controllers connected by a communication link. Thus efficient PLC-HMI communication is essential for proper functioning of the whole automation system. Several aspects of such communication are analyzed in the paper and some solutions proposed to reduce the communication cycle. The described methods have been implemented in the CPDev engineering environment.

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“…The approach could be used with the CPDev engineering environment 1 [17] The paper is organized as follows. The second section presents an existing concept of testing with the CPTest+ language, equipped with the modeling features using the SysML language.…”

Section: Introductionmentioning

confidence: 99%

Impact of Communication Timeouts on Meeting Functional Requirements for IEC 61131–3 Distributed Control Systems

Jamro

Rzońca

2015

Automatika

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Original scientific paperThe control software is frequently used in various systems that perform important and responsible tasks in industry. During its development, it is crucial to ensure that the solution is created in a way consistent with assumptions and meets all functional requirements. One of important steps consists of testing particular software units, separated from the rest of system, using the off-line simulator. However, test results can be different in case of a fully-connected system when external factors, such as communication issues, should be also taken into account. In this paper, the authors present a concept of specification and execution of system tests, using the dedicated test definition language, named CPTest+. It has been extended by the additional ASSERT_COM instruction, which performs an assertion that is able to detect problems related to external factors, including communication. To enable automatic and systematic testing, the dedicated metric has been proposed. It takes into account the current link status and archived results to calculate the probability that the test case has failed due to communication problems.Key words: Control Systems, Communication, IEC 61131-3, Requirements, Testing Utjecaj komunikacijskih prekida na zadovoljenje funkcionalnih zahtjeva IEC 61131-3 distribuiranih sustava upravljanja. Upravljački software ječesto korišten u sustavima koji obavljaju kritične zadatke u industriji. Tijekom njegovog razvoja, važno je osigurati zadovoljenje svih bitnih pretpostavki i funkcionalnih zahtjeva. Jedan od važnih koraka u razvoju navedenog softwarea je testiranje njegovih pojedinih cjelina korištenjem offline simulatora, neovisno o ostatku sustava. Meutim, rezultati testiranja mogu se bitnije razlikovati u slučaju potpuno povezanog sustava sa svim pripadajućim eksternim faktorima, kao što su komunikacijski problemi, koje je takoer potrebno uzeti u obzir. U ovom radu autori predstavljaju koncept definiranja i izvršenja testova sustava korištenjem jezika za namjensko definiranje testova, nazvanog CPTest+. On je proširen dodatnom ASSERT_COM naredbom koja obavlja provjeru s mogućnošću detekcije problema uzrokovanih vanjskim faktorima, npr. komunikacijom. Kako bi se omogućilo automatsko i sistematično testiranje predložen je namjenski mjerni sustav. On uzima u obzir trenutni status veze kao i arhivirane rezultate kako bi se odredila vjerojatnost neizvršenja testnog slučaja uslijed komunikacijskih problema.

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CPDev Engineering Environment for Modeling, Implementation, Testing, and Visualization of Control Software

Cited by 25 publications

References 14 publications

A prototype of an advanced ship autopilot implemented in the CPDev environment

A prototype of an advanced ship autopilot implemented in the CPDev environment

Performance Improvement of PLC - HMI Communication in CPDev Engineering Environment

Impact of Communication Timeouts on Meeting Functional Requirements for IEC 61131–3 Distributed Control Systems

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