scholarly journals Interactive Water Level Control System Simulator Based on OMRON CX-Programmer and CX-Designer

2021 ◽  
Vol 11 (9) ◽  
pp. 91-99
Author(s):  
Rijalul Fahmi Mustapa ◽  
◽  
Rozi Rifin ◽  
Mohd Ezwan Mahadan ◽  
Aznilinda Zainuddin
Keyword(s):  
Control System ◽  
Embedded System ◽  
Water Level ◽  
Teaching And Learning ◽  
Programmable Logic Controller ◽  
Automation System ◽  
Programmable Logic ◽  
Level Control ◽  
Level Control System ◽  
Automation Systems

Abstract— Programmable Logic Controller (PLC) is an essential component in industrial automation where it acts as the backbone of the system. In line with Industrial Revolution (IR) 4.0, most industrial and manufacturing sectors move towards automation systems. Preparing university students about automation and PLC fundamental knowledge and skill is crucial before graduation, where the preoccupied knowledge will enhance graduate employability. Fulfilling this task, universities have to prepare the necessary equipment in the laboratory for teaching and learning purposes. The problem arises when certain universities with budget constraints cannot purchase the equipment for the PLC embedded system as huge costs have to be borne by universities. Thus, an alternative approach has to be taken where the main objective of this paper is to develop an interactive water level control system simulator as a substitution of the expensive automation PLC embedded system for teaching and learning purposes. OMRON software, namely CX-Programmer and CX-Designer used to design and develop an interactive water level control system simulator. In addition, the interactive water level control will be embedded with a PLC component that replicates the actual automation system laboratory equipment. Moreover, universities with a limited budget can utilize the tool for teaching and learning purposes of the PLC and automation system, which is the main contribution of this paper. Keywords—Water Level Control System, Programmable Logic Controller, Simulator, CX-Programmer, CX-Designer.

scholarly journals Automatic water level control system using discretized components

2020 ◽  
Vol 24 (10) ◽  
pp. 1781-1785
Author(s):  
A Big-Alabo ◽  
C Isaac
Keyword(s):  
Control System ◽  
Water Level ◽  
Power Supply ◽  
Power Supply Unit ◽  
Design Approach ◽  
Programmable Logic ◽  
Level Control ◽  
Level Control System ◽  
Control Switch ◽  
Underground Tank

This study is based on the design of a portable automatic water level control switch that is capable of switching on the pump when the water level in the overhead tank goes low and switches it off as soon as the water level reaches a pre-determined level to prevent dry-run of the pump in case the level in the underground tank goes below the suction level. The water in the tank is measured by the conductive probes and displaced via the LED indicators. At maximum-set capacity the pump is de-energized to automatically switch off, thereby stopping the inflow of water into the tank. The design approach involves three major stages which are: the power supply unit, the sensing unit, and the motoring and relay unit. The uniqueness of this work is the use of discrete components such as transistors to achieve water level control. This approach is more economical, simpler and easier to implement than the sophisticated programmable logic controllers and computerized microprocessors. Keywords: discrete components; conductive probes; sensors; relays; pump

Set-Point Function Compensation-Based Control for Steam Generator Water Level

2017 ◽  
Author(s):  
Dan Guo ◽  
Hong Xia
Keyword(s):  
Control System ◽  
Water Level ◽  
Steam Generator ◽  
Transient Performance ◽  
Level Control ◽  
Point Function ◽  
Inverse Control ◽  
Set Point ◽  
Level Control System ◽  
Power Adjustment

Steam generator (SG) water level system is a highly complex nonlinear time-varying system. It is complicated at low power levels due to shrink and swell phenomena which must be considered for plant safety and availability. To improve the transient performance of the SG level subject to power adjustments, an innovative set-point function method is put forward in this paper. The set-point functions based on the inverse-control theory and the swell and shrink effect which generate a desirable reference input to the widespread cascade Proportional Integral Derivative (PID) controller of the level control system respectively. The set-point function can apply appropriate control to the feed-water flow rate duly depended on the pivotal time between the power adjustment decision and the real start time of adjustment. Finally, comparative simulation is carried out under the same condition of power adjustment. The simulation results demonstrate that the water level control system added set-point functions can restrain the disturbance and improve the transient performance effectively. The method added the Inverse Control-Based Set-Point (ICSP) function can achieve better control performances than the swell-based set-point (SBSP) function.

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