Computer based systems, which are devoted to control critical functions, may incur in safety and dependability problems. In the safety area a new standard is currently emerging, IEC 61508, which is intended to provide a unified framework which may deserve as guideline for the analysis of safety related systems. The present paper deals with the safety and dependability analysis of a Programmable...

A second prototype of biped walking robot, named as EPWAR2 (Electropneumatic WAlking Robot), has been designed and built at LARM (Laboratory of Robotics and Mechatronics) in Cassino. In addition to the performances of previous prototype EP-WAR, EP-WAR2 is able to climb stairs because of a new actuation system. A suitable programming of the PLC (Programmable Logic Controller) has been based on s...

This paper investigates the implementation and design of a fuzzy system on an industrial controller. Programmable Logic Controllers (PLCs) are key devices used in many industrial processes. Most of the time they implement discrete control functions involving sequential control, but the availability of basic features like arithmetic operations, floating point units etc. allow for more complex al...

In today’s university life, teachers are often confronted with plagiarism. A special form of plagiarism is source code plagiarism typically found in programming courses at universities and schools. Detecting or even preventing source code plagiarism is by no means a trivial task. Therefore, this paper explains and discusses different methods that can be used to prevent and detect source code pl...

In this paper, a heating, ventilating and air-conditioning (HVAC) system was designed and two different damper gap rates (actuators position) of the HVAC system were controlled by a conventional PID (proportional–integral–derivative) controller. One of the dampers was controlled by using the required temperature for the interested indoor volume while the other damper was controlled by using the...

Our goal is to increase efficiency and quality in automation engineering in machine and plant manufacturing industry by supporting modularity and reuse. This article proofs that object-oriented modelbased design can beneficially be applied in industry and that the code automatically derived from the UML model can be implemented on industrial PLCs without additional effort. We had to solve the f...

Smart switching system is designed for smart home control applications. The system uses real time programmable logic controller (PLC) for switching the electrical appliances. Electrical appliance is a part of our daily needs for mankind. When such needs are in a very high demand, the user’s requirement is also increasing to access their electrical appliances in a more flexible way and also safe...

Once an industrial process is designed, the real implementation of control programmed into Supervisory Control and Data Acquisition (SCADA) Programmable Logic Controller (PLC) devices on shop floor. These are with their low-level coding languages. This presents several drawbacks, such as inconsistencies naming errors between design steps, or difficulties in integrating new Industry 4.0 function...

connection technology continue to simplify the design and wiring that go into industrial control panels. E ver since the first control panels were installed on the floor of industrial plants, there have been attempts to reduce the amount of wiring and effort that goes into connecting industrial processes and machines to their controls. Decades ago, programmable logic controllers (PLCs) began re...

In this paper the design and implementation of a network for integrating Programmable Logic Controllers (PLC), the Object-Linking and Embedding for Process Control protocol (OPC) and the open-source Easy Java Simulations (EJS) package is presented. A LabVIEW interface and the Java-Internet-LabVIEW (JIL) server complete the scheme for data exchange. This configuration allows the user to remotely...