In this paper, we propose a new method to teach automation in the training of industry 4.0. This method uses an interactive approach to help students rapidly familiarize with plc programming. Computers are transformed...
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ISBN:
(纸本)9781728127415
In this paper, we propose a new method to teach automation in the training of industry 4.0. This method uses an interactive approach to help students rapidly familiarize with plc programming. Computers are transformed into plc training kits using Factory I/O - a 3D factory simulator and CodeSys - a development system. A series of training activities have been organized to encourage life-long learning among the students. Besides, a survey has been conducted with 20 students in first-year master Energy at Energy Master, Claude Bernard University Lyon 1, Lyon, France. The results indicate that students are satisfied with this approach.
Reducing the cycle duration of plc (Programmable Logic Controller) is one of the methods for increasing the access frequency of nodes in the real time distributed system into the transmission medium. The authors prese...
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ISBN:
(纸本)9783642217708
Reducing the cycle duration of plc (Programmable Logic Controller) is one of the methods for increasing the access frequency of nodes in the real time distributed system into the transmission medium. The authors presents in this paper one of the methods developed by themselves for a rather specific use of a cases of avalanche of events.
Cyber Physical Production Systems (CPPS) operate for a long time and face continuous and incremental changes to follow up varying requirements. Interdisciplinary engineering of CPPS is often subject to delay and cost ...
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ISBN:
(纸本)9781728143958
Cyber Physical Production Systems (CPPS) operate for a long time and face continuous and incremental changes to follow up varying requirements. Interdisciplinary engineering of CPPS is often subject to delay and cost overrun;and quality control may even fail due to the lack of efficient information exchange between multiple involved actors. We propose to integrate a formal requirement specification approach, namely Generalized Test Tables including tool support, into industrial workflows and present the approach through extended notations of Business Process Model and Notation (BPMN), namely BPMN++*, with the tool-coupling aspect. The suggested tooling enables automation engineers to follow the defined workflow systematically and communicate easier through the formally represented change requirement. The approach is demonstrated by two typical use cases of changing a CPPS' control software and showing the result by means of an extended BPMN++ model exemplarily.
The paper presents the results of empirical tests, which examine the algorithm of failure detection in transmission line or network node in dual bus system. The implemented algorithm is the base that use the second bu...
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ISBN:
(纸本)9783642388651
The paper presents the results of empirical tests, which examine the algorithm of failure detection in transmission line or network node in dual bus system. The implemented algorithm is the base that use the second bus for parallel data transmission. It also presents the research results, which refer to measuring the duration of basic transaction in the network system, duration of the bus failure detection A(B) and slave station failure.
Authors present. considerations on data interchange acceleration method in distributed control systems using dual data transmission line. The method is focused on the construction of a system based on two buses. Howev...
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ISBN:
(纸本)9783642312168
Authors present. considerations on data interchange acceleration method in distributed control systems using dual data transmission line. The method is focused on the construction of a system based on two buses. However bus failure detection is very important in this method, because in such a case transmission on two buses must be stopped. From this point of view, failure detection is a fundamental goal. In article, authors intend to describe in general the problem and to propose some detection algorithms.
Agile and flexible manufacturing systems make it mandatory that control programs have features such as agility, flexibility and reusability to meet fast changing. Customer demands. To cope with this, a task-oriented m...
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ISBN:
(纸本)9781424423194
Agile and flexible manufacturing systems make it mandatory that control programs have features such as agility, flexibility and reusability to meet fast changing. Customer demands. To cope with this, a task-oriented model of the control system provides control code, data mapping and generating plc code according to assembly sequences. The model is defined with the unit functions which can describe the complex assembly process with function elements. Task-oriented model also means the assigning and combining of unit function to generate the plc code for assembly process. The Artificial Intelligence method executes knowledge processing for generating the plc program. This approach of task-oriented method supports the flexible programming with high level of reusability, expandability, modifiability, and productivity.
This paper presents a new discrete control modeling technique for automated industrial systems. The proposed methodology helps to smooth the transition from specification to implementation. The technique is based on a...
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ISBN:
(纸本)0898061776
This paper presents a new discrete control modeling technique for automated industrial systems. The proposed methodology helps to smooth the transition from specification to implementation. The technique is based on a graphical representation (Y net) that efficiently describes the operation of Programmable Logic Controllers (plcs), The technique offers a structured way for constructing Y nets. Although Y net can be translated into any plc language, we chose to present an automatic translation algorithm of Y net into Ladder Diagrams (LDs)-the most prevalent PLG language. The compactness of Y nets gives them an advantage over models that experience exponential explosion (e.g., slate diagrams). A large part of the method can be automated. Minimum specification is required from the user, and both the Y net and the ladder diagram can be built automatically using the proposed algorithms.
This paper presents an experiment concerning the development of two mobile devices applications with the App Inventor 2 for Android operating systems. These applications are intended to support teaching and learning a...
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ISBN:
(纸本)9781479919086
This paper presents an experiment concerning the development of two mobile devices applications with the App Inventor 2 for Android operating systems. These applications are intended to support teaching and learning activities in Industrial Automation and Control courses, particularly concerning logic control, logic controller programming and process control. While the reported applications: eLogicum and Automatum are yet in an early development stage, this paper aims to motivate teachers and students to a wider use of mobile devices in the context of university teaching and learning processes. Both applications are reported, focusing in the more relevant development issues concerning the App Inventor 2 use.
A Paper suggests automated control program synthesis for typical boiler-house of small to medium power. Due to typical boiler-house architecture even part of control algorithms for the equipment or overall program str...
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ISBN:
(纸本)9781634397988
A Paper suggests automated control program synthesis for typical boiler-house of small to medium power. Due to typical boiler-house architecture even part of control algorithms for the equipment or overall program structure can be ready made. This paper presents the way to build those control algorithms and automated generation of the control program for programmable logic controller. Process signal coding, special plc templates and meta-program for the boiler-house control program is also presented.
Serial radio modems are long-standing but usable technology and they are still widely used in data communication in many applications. Slow transmission speed, point-to- point connections and signal attenuation are th...
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Serial radio modems are long-standing but usable technology and they are still widely used in data communication in many applications. Slow transmission speed, point-to- point connections and signal attenuation are the negative aspects of serial modems. Old and new radio modem models are still compatible with each other because they have not changed greatly over the years. Radio modems can transfer many transmission protocols therefore user can select the most suitable protocol for the application. The goal of this thesis was to improve the usage of serial radio modems in communication between plcs. Data transfer speed generally cannot be increased thus only necessary data should be transferred through radio modems. The protocol that was used in this thesis was Modbus RTU which is supported by numerous process control devices. Radio network enables reading and writing data to remote automation systems using Modbus RTU. Every device in the network has to be polled individually and round times of large networks can increase to tens of seconds. The basic idea in improving the com- munication rate is that every station in the network was read sequentially but stations can jump the queue if needed. This thesis studied how different data should be divided in the communication. It is not necessary to use cyclical data transfer method for all the data and therefore some data could only be transferred when needed. Performance of the communication system was tested using existing remote monitoring system. The new communication system is sim- ilar to existing one therefore performance of the new implementation can be verified. The performance of both systems were measured and results have been presented in the last chapter.
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