We propose a framework for the automatic verification of PLC (Programmable Logic Controllers) programs written in Instruction List, one of the five languages defined in the IEC 61131-3 standard. We propose a formal semantics for a significant fragment of the IL language, and a direct coding of this semantics into a model checking tool. We then automatically verify rich behavioral properties wri...

In railway tunnels, ventilation is carried out to prevent NO, NO2, and CO gas pollution caused by exhaust gases due the diesel locomotives on railway. Some calculations are used during ventilation. these calculations, factors like location structure of tunnel pressure belts that may occur should be considered one one. After control scenarios prepared based locations dimensions equipment used. P...

This research aims to: (1) develop a prototype of an automatic bottle filling and capping machine training kit as Programmable Logic Controllers (PLC) practice tool in vocational high schools (SMK), (2) assess the performance PLC SMK. adopts development methodology field education. The model used is ADDIE by Robert Maribe Branch. consists following stages: Analyze, Design, Develop, Implement, E...

Automation means Delegation of human control to machine. A PLC (Programmable Logic Controller) is a device that was invented to replace the necessary sequential relay circuits for machine control. A SCADA (Supervisory Control & Data Acquisition System) is used to control the process where person cannot go or stay for longer period. The aim of tis paper is to provide information about hoelectric...

Programmable logic controllers are the main controllers in the today’s industries; they are used for several applications in industrial control systems and there are lots of examples exist from the PLC applications in industries especially in big companies and plants such as refineries, power plants, petrochemical companies, steel companies, and food and production companies. In the PLCs there ...

As a result of the production powder processing causes lot dust around machine and factory. This course can cause pollution. Dust needs to be collected using Collector (DC) machine. The controller on DC at PT. xxx is often damaged in control unit requires repairs cost Rp. 5,000,000 per unit. In facts there are about 10 units machines PT.xxx that must work all. Because their controllers, mainten...

Software Defined Network (SDN) is a programmable network which separates the control logic-plane and hardware data-plane. The SDN centrally manages different Internet of Things (IoT) enabled smart devices like, actuators sensors connected in networks. Smart city infrastructure an application IoT purpose to manage without human interventions. To collect real time data, such generate large amount...

New trends and the effect of key factors influence the quality of the holes produced by ECM processes. Researchers developed a fuzzy logic controller by adding intelligence to the ECM process. Maintaining optimum ECM process conditions ensures higher machining efficiency and performance. This paper presents the development of a fuzzy logic controller to add intelligence to the ECM process. An e...