AUTOMATIC GENERATION OF THE PLC PROGRAMS FOR THE SEQUENTIAL CONTROL OF PNEUMATIC ACTUATORS

Nowadays, programmable logic controllers (PLC) are widely used in many automated systems, especially for the control of various actuators. The most common PLC programming is performed by either using a ladder diagram or a structured text. The paper presents the automatic generation of PLC programs for the purpose of sequentially controlling pneumatic actuators. In this paper, the pneumatic actuators are supplied and controlled by 5/2-way as well as 5/3-way bistable pneumatic valves with electric activation. The valve type depends on the number of positions in which the actuator should come, and the position sensors are used for detecting its movement. The characteristic encoding of the movement of actuators, position sensors and control commands is performed. The advantages of the automatic generation of the PLC commands and the entire program described in this paper are illustrated in a real example.

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Design and Implementation of SCADA System for Sugar Production Line

Al-Khwarizmi Engineering Journal ◽

10.22153/kej.2019.01.002 ◽

2019 ◽

Vol 15 (2) ◽

pp. 80-88

Author(s):

Noor N. N. Abdulsattar ◽

Faiz F. Mustafa ◽

Suha M. Hadi

Keyword(s):

Manufacturing Process ◽

Production Line ◽

Sugar Industry ◽

Low Cost ◽

Programmable Logic ◽

Sugar Production ◽

Design And Implementation ◽

Selector Switch ◽

Scada System ◽

Plc Programming

SCADA is the technology that allows the operator to gather data from one or more various facilities and to send control instructions to those facilities. This paper represents an adaptable and low cost SCADA system for a particular sugar manufacturing process, by using Programmable Logic Controls (Siemens s7-1200, 1214Dc/ Dc/ Rly). The system will control and monitor the laboratory production line chose from sugar industry. The project comprises of two sections the first one is the hardware section that has been designed, and built using components suitable for making it for laboratory purposes, and the second section was the software as the PLC programming, designing the HMI, creating alarms and trending system. The system will have two HMI screens according to the two operating states of system (Automatic and Manual), the operator can choose between them by a selector switch, this method helps the operators when fixing a failure and wanting to check it without operating all the process. The result has accomplished the goals of controlling, the parameters (temperature, flow, humidity) were monitored, failure was detected by an alarm.

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ANALISIS KENDALI SENSOR CAHAYA PADA MODUL LIFT 5 LANTAI MENGGUNAKAN PLC OMRON TIPE CP1E30

Electro Luceat ◽

10.32531/jelekn.v4i2.140 ◽

2018 ◽

Vol 4 (2) ◽

pp. 15-25

Author(s):

John Ohoiwutun ◽

Alimuddin Mappa

Keyword(s):

Programmable Logic Controller ◽

Ladder Diagram ◽

Programmable Logic ◽

Motor Power

PLC (programmable logic controller) pada dasarnya adalah sebuah komputer yang khusunya di rancang untuk mengantikan sistem berbasis relay. Dengan menggunakan PLC perancangan sistem masing-masing memiliki jumlah yang berbeda, umumnya perbandingan input dan output pada suatu PLC adalah 60 persen berbanding 40 ( 18 terminal input dan 12 terminal output). Tujuan dari Penelitian ini adalah Pembuatan Modul praktek untuk mempelajari bagian prinsip kerja dari sistem control motor naik turun otomatis menggunakan PLC Omron CP1E. simulasi mengunakan Input dari PLC untuk pengontrolan sensor cahaya yang mendeteksi keberadaan box Lift. Pada output PLC digunakan Motor Power window dan indicator Lift yang menandakan box Lift secara otomatis sedang berjalan. Pengontrolan Motor Naik Turun melalui bahasa pemogramanserta ladder diagram. Menggunakan alat peraga yaitu PLC Omron CP1E.

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Modeling and control of a new robotic deburring system

Robotica ◽

10.1017/s0263574705002067 ◽

2005 ◽

Vol 24 (2) ◽

pp. 229-237 ◽

Cited By ~ 2

Author(s):

Jae H. Chung ◽

Changhoon Kim

Keyword(s):

Comparative Study ◽

Decentralized Control ◽

Control Method ◽

Robotic Manipulator ◽

Coordination Control ◽

Pneumatic Actuators ◽

Modeling And Control ◽

Control Approach ◽

Simulation Results ◽

And Control

This paper discusses the modeling and control of a robotic manipulator with a new deburring tool, which integrates two pneumatic actuators to take advantage of a double cutting action. A coordination control method is developed by decomposing the robotic deburring system into two subsystems; the arm and the deburring tool. A decentralized control approach is pursued, in which suitable controllers were designed for the two subsystems in the coordination scheme. In simulation, three different tool configurations are considered: rigid, single pneumatic and integrated pneumatic tools. A comparative study is performed to investigate the deburring performance of the deburring arm with the different tools. Simulation results show that the developed robotic deburring system significantly improves the accuracy of the deburring operation.

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Heterogenic Autotuner for Electro-Pneumatic Single-Action Actuators

Energies ◽

10.3390/en13184604 ◽

2020 ◽

Vol 13 (18) ◽

pp. 4604

Author(s):

Michał Bartyś

Keyword(s):

Pid Controller ◽

The Novel ◽

Main Concept ◽

Heuristic Knowledge ◽

Pneumatic Actuators ◽

Single Action ◽

Long Time ◽

Qualitative Knowledge ◽

Tuning Process ◽

And Control

The main concept is to design the novel autotuner in a way that it will introduce benefits that arise from the effect of the fusion of the quantitative and qualitative knowledge gained from identification experiments, long-time expertise, and theoretical findings. The novelty of this approach is in the manner in which the expert heuristic knowledge is used for the development of an easy-to-use and time-efficient tuning process. In the proposed approach, the positioner simply learns, mimics, and follows up the tuning process that is performed by an experienced human operator. The major strength of this approach is that all parameters of positioner PID controller can be estimated by only identifying one single parameter that is the effective time constant of the pneumatic actuator. The elaborated autotuning algorithm is experimentally examined with different commercially available pneumatic actuators and control valves. The obtained results demonstrate that the proposed autotuning approach exhibits good performance, usability, and robustness. This should be considered as particularly relevant in the processes of installing, commissioning, and servicing single-action final control elements.

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Aspects Regarding Pneumatic System Simulated Control

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.166-167.291 ◽

2010 ◽

Vol 166-167 ◽

pp. 291-296 ◽

Cited By ~ 1

Author(s):

Rares Ciprian Mîndru ◽

Vistrian Maties ◽

Ciprian Lapusan ◽

Ioan Adrian Cosma

Keyword(s):

Differential Equations ◽

High Speed ◽

Integrated Design ◽

Control Algorithms ◽

Pneumatic Actuators ◽

Positioning Systems ◽

Electromagnetic Valve ◽

Modeling Simulation ◽

Mathematical Analyses ◽

And Control

The paper proposes a large approach to pneumatic systems starting from the mathematical laws, written in the form of differential equations, which govern the operation of pneumatic systems and continuing with the simulation model. The concept of integrated design includes all approaches, needed for an optimal and deep system understanding, such as modeling, simulation and control. Pneumatic actuators have a nonlinear functionality because of air compressibility, the existing frictions and the valves nonlinearities. Because of these, they are used in high speed applications and simple positioning systems. Thus, the mathematical analyses of pneumatic systems have received a special attention. The differential equations were implemented in Matlab Simulink, and the model input represents the voltage on the electromagnetic valve, and the output seen on the "scope" represents the movement of the piston pneumatic axis. Some control algorithms are implemented and applied to the model and seen the basic differences.

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Study on Topology and Control Strategy of High-Precision and Wide-Range Hybrid Converter for Photovoltaic Cell Simulator

Energies ◽

10.3390/en12010039 ◽

2018 ◽

Vol 12 (1) ◽

pp. 39

Author(s):

Jianfei Zhao ◽

Minqi Hua ◽

Tingzhang Liu ◽

Tao Yu

Keyword(s):

Control Strategy ◽

Power Supply ◽

High Performance ◽

Photovoltaic Cell ◽

Programmable Logic ◽

Motor Simulation ◽

Hybrid Topology ◽

Wide Range ◽

Cell Simulation ◽

And Control

Aiming at the function and technical requirements of high-power photovoltaic cell simulation, high-performance programmable logic power supply and dc motor simulation, a high frequency isolation hybrid topology and control strategy based on current-source/voltage-source converter was studied and proposed. Firstly, according to the performance requirements of photovoltaic cell analog power supply, the control strategy requirements of the high-precision wide-range hybrid topology were proposed. Secondly, the working principle of the new hybrid topology was analyzed. At the same time, the equivalent model of the new hybrid topology was simplified and established, and the overall control strategy of the hybrid topology based on current compensation and sliding mode variable structure was proposed. Finally, simulation and experimental research on the hybrid topology was carried out, and the experimental test of photovoltaic cell simulation was completed. The simulation and experimental results show that the hybrid topology and control strategy proposed in this paper has the characteristics of wide-range output regulation, fast dynamic response, high efficiency and high power factor, and can be used for high performance photovoltaic cell simulation, programmable logic power supply and DC motor simulation.

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Topology and Functions of Large-Scale PV Power Station Monitoring and Control System

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.791-793.857 ◽

2013 ◽

Vol 791-793 ◽

pp. 857-860

Author(s):

Hong Chun Yao ◽

Liang Yin ◽

Ming Yu Huang

Keyword(s):

Control System ◽

Large Scale ◽

Automatic Generation ◽

State Assessment ◽

Automatic Generation Control ◽

Monitoring And Control ◽

Power Station ◽

Monitoring And Control System ◽

And Control ◽

Generation Control

According to the development status of large-scale PV power station, this paper expatiates the topology and functions of the monitoring and control system of large-scale PV power station, The system consists of monitoring center, fiber optic ring network and control subnet, and the main functions are SCADA (supervisory control and data acquisition), AGC (automatic generation control), AVC (automatic voltage control), system state assessment, equipment maintenance, and power generation benefit analysis. The system is flexible and reliable, and will promote the efficiency of operation and maintenance of large-scale PV power station.

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