PLC PROGRAMMABLE LOGIC CONTROLLER IEEE PAPER 2022
programmable logic controller is a type of tiny computer that can receive data through its inputs and send operating instructions through its outputs. Fundamentally, a PLC's job is to control a system's functions using the internal logic programmed into it These include controlling the machines that produce paper products at high speeds. For instance, a PLC controls and monitors the production of book pages or newspapers in offset web printing. Manufacturing cement involves mixing various raw materials in a kiln They are industrial computers used to control different electro-mechanical processes for use in manufacturing, plants, or other automation environments.
Design of the Sequential Control System for Programmable Logic Controller based on Computer Aided Technology
free download
PLC control system more and more mature. The traditional computer- PLC control system is mainly composed of PC program end and corresponding PLC program end in the control
Designing manufacturing of a smart Programmable logic controller work station
free download
The Programmable Logic Controller ( PLC ) is an important component for industrial automatic engineering operation. Hence, the need to comprehend its basis of operation becomes an
A REVIEW PAPER ON MICROLOGIX CONTROLLER BASED INTELLIGENT TRAFFIC-CONGESTION CONTROL SYSTEM
free download
In this project we are using Allen Bradley 1400 series AB PLC . The main motive of this project is to control and monitor the traffic density of the four-way road. The purpose of the project
Design of Lift Group Control Systems based on PLC
free download
lift group control system based on programmable logic controllers ( PLC ) is introduced. combine the concept of PLC and fuzzy control model to develop a group control system that can
INDUSTRIAL PROCESS MONITORING AND CONTROL SYSTEM
free download
the applications designed for programmable logic controllers (PLCs) (one master PLC TM241CEC24R and three slave PLC controlled by programmable logic controller for hardwired
Development of a Real-time Framework between MATLAB and PLC through OPC-UA: A case study of a microgrid energy management system
free download
Programmable Logic Control ( PLC ) to acquire data from the various sensors and control the system through actuators and PID controllers MATLAB and the PLC is developed using the
Alternative ways to control an object using PLC S7-1200 controller
free download
an alternative way of control and display information from a PLC which will control an object such Program logic was created in TIA Portal V15 and Matlab Simulink environments. The
Design development of a automatic bottle filling machine
free download
is introduced using Programmable Logic Controller ( PLC ) based controller in automation small, manual feeding with a simple filling mechanism using PLC . The belt conveyor is used for
PERFORMANCE VERIFICATION OF NEW MACHINE PROTECTION SYSTEM PROTOTYPE FOR RIKEN RI BEAM FACTORY
free download
was configured using programmable logic controllers ( PLC ). It consists of two separate PLC stations, has 28 digital and 23 on Melsec-Q series programmable logic controllers (PLCs)
Intelligent Sensor of Information and Technical Impact (ITI) on the Network Subsystem of a Man-Made Facility
free download
and at programmable logic controller ( PLC ) level. The scientific novelty of the proposed methodology lies in the development of the model of training sampling technique, the model of
Performance Analysis of An Automated Biodiesel Processor
free download
programmable logic controller ( PLC ). Upon completing a full cycle, the plant delivers certified Biodiesel and the leftover by-products are collected for further recycling. Different batches
CoToRu: Automatic Generation of Network Intrusion Detection Rules from Code
free download
have targeted Programmable Logic Controllers (PLCs), the control logic . Our threat model assumes that the attacker manipulates the PLC control logic or firmware to change the PLC
NOVEL CONTROL SYSTEM FOR THE LHCb SCINTILLATING FIBRE TRACKER DETECTOR INFRASTRUCTURE
free download
and located in the PLC ( Programmable Logic Controller ) rack in the LHCb service cavern. The PLC program follows the UNICOS framework which allows the PLC program software con
EXPERIMENTAL RESEARCH OF LINE POWER UNLOADING AUTOMATICS WITH ITS TRIPPING CHARACTERISTICS CORRECTION
free download
algorithm design and programmable logic controller ( PLC ) based implementations. It also in this article was implemented on a PLC system in accordance with the IEC 61131 standard
Design and Development of a Flood Level Control Model Using Instrumentation System
free download
In this project, the main focus was on the PLC based level control system design is the PLC based water level control with their management. In this project using control gate we
Automation Control of Antenna and Microwave in Telecom Towers using SCADA
free download
PLC technology is a good and strong alternative to other logic controllers . As the need to monitor and handle control systems (DCSs) and programmable logic controllers (
Review for Arduino based Portable Ventilator for COVID-19
free download
One of the results of this is the Industrial grade programmable logic controller which aims to control the mechanical ventilation process of a bag-valve mask-based emergency ventilator.
Autogenerated Human Machine Interface for supervision and control
free download
The graphical user interface is flexible depending on the number of inputs and outputs, and it can communicate with a Programmable Logic Controller ( PLC ) that is located remotely.
Generic Modeling Technique for Flexible and Highly Available Assembly Systems
free download
This API can describe any assembly system and the associated task and is used to get the boilerplate code needed to execute the process on a programmable logic controller ( PLC )
NeoKoil Smart line, the automatic pilot for strip processing lines
free download
to the level 1 PLCs ( Programmable Logic Controllers ), a specific communication device has PLC : programmable logic controller PID: proportional integral derivative CW: coating weight
Designing a framework for expressing Function Block Diagrams using JSON (version 1.0)
free download
of the PLC programming standard. As can be seen in Figure FBD programming is a graphical programming method by which controlbased systems can be programmed using
Frequency converter-based monitoring, diagnostics and control system for artesian well pumps
free download
of its shaft, PLC ( Programmable Logic Controller ) and GSM (Global System for Mobile Communications) means that receive and analyze signals from the control measurement and
Protection of flexible pipes from dynamic surface stresses by Geocell-reinforced sand backfill
free download
The Programmable Logic Controller ( PLC ) can be defined as a digital computer used for automation of electromechanical processes, which are considered as a highly technical
Gait Control System of Autonomous Mobile Robot Based on PMAC
free download
attribute, program logic control and variable assignment. PLC program command is also a group of buffer instructions, which can be repeated, including operations, logic control and
A Domain-Specific Modeling for Monitoring Operations in a Smart field
free download
as the Programmable Logic Controller ( PLC ). The Real-time Operations Center (RTOC), which comprises the programmable based on a Programmable Logic Controller System that
Improving ICS security through Honeynets and Machine Learning techniques
free download
Programmable Logic Controllers ( PLC ) PLC is a solid-state control system that is mainly used for industrial purposes within SCADA and DCS for long distance and big systems and it s
Industrial and Automation Control System Cyber Range Prototype for Offensive Capability Development
free download
The core control elements in a cyber-physical system include at least a programmable logic controller ( PLC ), human-machine interface (HMI), and supervisory control and data
XiUOS: an open-source ubiquitous operating system for industrial Internet of Things
free download
The controlling framework provides a PLC ( programmable logic controller ) controlling library, which can collect device data from PLCs of Siemens, Omron, and BR. Thus remote
Chemical characterization of Artemisia annua L. subcritical extract
free download
It is controlled by a fully automatic Programmable Logic Controller ( PLC ) screen interface with first level safety functionality and user programmable extraction pressure, number of
Productivity Enhancement by Prediction of Liquid Steel Breakout during Continuous Casting Process in Manufacturing of Steel Slabs in Steel Plant Using
free download
(EDA), ANN-BP, and programmable logic controller ( PLC ) trigger. The first part is EDA, used sending a signal to strands PLC . The third part uses PLC to reduce casting speed whenever
Control of the humidity percentage of a bioreactor using a fuzzy controller to grow bonsai.
free download
Currently, there is a great variety of control systems, which can be used to control a ) control robust control sliding modes, programmable logic controllers ( PLC ), fuzzy logic controller (
Safety Monitoring of the Automated City Water Supply Management System Based on PSIM and SIEM Systems
free download
workstation, database, controller for process control controller for water treatment process control programmable logic controller ( PLC ) for pumping station control . The main categories
Investigation of Microstructural Evolution of Gas-assisted Metal Injection Molded and Sintered Mg-0.5 Ca Alloy
free download
The whole system works with PLC ( Programmable Logic Controller ) within a program written specifically for the machine and GAMIM operation is performed. Thus, all parameters
Improving Data Protection in Industrial Control System Networks Using Machine Learning Technique
free download
Description of the network structure The SCADA network consists of a programmable logic controller ( PLC ), human machine interface (HMI), Check point 1200R security gateway
An ICT Architecture for Enabling Ancillary Services in Distributed Renewable Energy Sources Based on the SGAM Framework
free download
The information sent to the Manager are the metrics of the DRES, as measured by the controller and send via the PLC and set points from the Manager back to the controller . The PLC
Multi-channel Process Instrumentation and Control Trainer
free download
then translating it into an actual controller specific program that can be uploaded into the an industrial application using programmable logic circuit ( PLC ). The ladder logic of a system is
Optimal selection of solar tracking system in India: A Review
free download
Keeping in view the climatic and seasonal variations in India, we study the algorithms and control strategies used for controlling the tracking of the solar panels and discuss them along
Application of Artificial Intelligence (AI) in Dredging Efficiency in Bangladesh
free download
The IHC Systems ACC uses the popular hardware and software and programmable logic controller network ( PLC ) monitored by a PC-based, server-client, supervisory, control and data
An Evaluation of a Semantic Thing To Service Matching Approach in Industrial IoT Environments
free download
), programmable logic controller ( PLC ) connected with sensors via its Input/output interface. In terms of software, the IoT cyber-physical system is composed of the sensor driver and a
Development of an Undervoltage and Overvoltage Device Using Programmable Interface Controller (PIC)
free download
The examples of the sensitive equipment s are Programmable Logic Controller ( PLC ), Adjustable Speed Drive (ASD) and Chiller control . Under voltage at the equipment terminal can
Enhancing performance for three-phase induction motor by changing the magnetic flux density and core material using COMSOL
free download
This paper presents a proposed design and analysis of a three-phase squirrel cage induction motor when changing of internal characteristic design for the three-phase induction motor.
Application of Digital Twins to Flexible Production Management: Taking a Shandong Factory as an Example
free download
Second, the PLC ( Programmable logic controller ) system collects data from the assembly system, then synchronizes with the virtual model in the DT through the open platform
Erwi nski, K
free download
control system additionally equipped with a PLC program module. The developed CNC controller ( The master is usually a Programmable Logic Controller ( PLC ) or Industrial PC (IPC)
DEVELOP DIGITAL STORYTELLING INTEGRATES WITH ANIMATION AS AN INNOVATIVE INSTRUCTIONAL TOOL: EFFECTS ON STUDENTS BE
free download
TS Min ???? ???????? ??????????, ???? ? ???? sua.aesa.kz The effectiveness of the kit portable PLC on electrical motors course among vocational school students in Aceh, Indonesia. Kompleksnoe Ispolzovanie Mineralnogo Syra= Complex
Hybrid Energy Storage Module in Photovoltaic Power Generation System for Brushless DC Motor Operation
free download
solar cell and converts the current into a voltage signal for the PLC to measure the luminous intensity. The active directory module of the PLC ranges from 0 to 10 V, and the feedback
Factors Influencing the Performance of Belt Conveyor
free download
Programmable logic controllers (PLCs) are mainly used for industrial automation and process control . Allen Bradley, Siemens, and ABB are three of the major PLC manufacturers in the
Compiler and virtual machine of a multiplatform control environment
free download
Available: www.straton- plc .com (Accessed 2021-11-24). HS Kim, JY Lee, and WH Kwon, A compiler design for IEC 1131-3 standard languages of programmable logic controllers
Usage of Augmented Reality for Improved Human-Machine Interaction and Real-Time Error Correction of Laboratory Units
free download
systems (for example, programmable logic controllers, PLCs) and on transferring data from one single PLC to one or more The data transfer between the programmable controller ( PLC )
Multifrequency controlled synchronization of four inductor motors by the fixed frequency ratio method in a vibration system
free download
The PLC ( Programmable Logic controller ) are connected with the convertors. The three acceleration sensors are sticked on the vibrating testing bench and connected with the DASP (
Impact of LoRA and 5G on Smart Manufacturing from Automation Perspective
free download
plant level is digitizing physical goods and limitations using Programmable Logic Controllers ( PLC ), sensors, and actuators [40]. Supervisory Control and Data Acquisition are then used devices like sensors that inform the Programmable Logic Controller ( PLC ) about the status of machinery and actuators. Information circulating in such control loops requires low and con
Advanced Maritime Technologies and Applications
free download
18 Development of Smart Traffic Light Control System Using PLC and IoT for Emergency Vehicle Passing Through 205 Atzroulnizam Abu, Muhammad Ikhmal Abdul Rahman,
Efficient middlebox scaling for virtualized intrusion prevention systems in software-defined networks
free download
6] consists of a programmable controller and several belonging switches, where the controller network statistics and to program the network. Thus, SDN is allowed to facilitate the central
Status-preserving, Seamless Relocation of Processes in Orchestrated Networks such as Organic 6G
free download
Result of this work is a principled mechanism for relocating a running process to another executing device during runtime while preserving its execution state. This covers Re-
Dataset and Baseline for an Industrial Robot Identification Benchmark
free download
top), a safety programmable logic controller ( PLC ) is connected. This PLC is safety-certified, The bus signal is sent from the safety PLC to the main power supply (left side, grey), which
Design of Visual Monitoring Software for Micro-Drive Debugging in Electromechanical System
free download
After the components of the 802Dsl are properly connected, the PLC control logic should be of the PLC are correct. (4) S120 drive debugging Only after the PLC application program is
MAHATMA GANDHI INSTITUTE OF TECHNOLOGY (Autonomous)
free download
controllers with Resistive, Resistive-inductive and Resistive-inductive-induced emf loads ac voltage controllers with PWM Control AC voltage controllers Analysis of controllers with
Process Mining for Dynamic Modeling of Smart Manufacturing Systems: Data Requirements
free download
Popovics and Monostori [26] designed an approach for automatically gathering data from Programmable Logic Controllers (PLCs) with the aim to achieve simulation model generation
Microgrids and active distribution networks
free download
Power and energy engineers, academics, researchers and stakeholders everywhere are pondering the problems of depletion of fossil fuel resources, poor energy efficiency and
A Holistic Framework Towards the Digital Adoption of Flexible Facility Layout Design
free download
In this approach, the current programmable logic controller code of the PLCcontrolled system is considered the data source of the current state. This approach shall enable a
PLC PROGRAMMABLE LOGIC CONTROLLER IEEE PAPER 2021
-
Automatic Food Packaging System using Programmable Logic Controller
free download
Food packaging using conventional machine has undelighted results, so it automatic packaging would be the solve that problem. it can more productive and quick. Basically, the working system of this automatic packaging begins with installing plastic on the rollers and
DEJ 40033: PROGRAMMABLE LOGIC CONTROLLER AUTOMATION
free download
The duct and wiring layout define the physical location of wireways and the routing of field I/O signals, power, and controller interconnections within the enclosure. The enclosures duct and wiring layout depends on the placement of I/O modules within each I/O rack. The
Attacking the IEC-61131 Logic Engine in Programmable Logic Controllers in Industrial Control Systems
free download
process Keywords: Critical Infrastructure Industrial Control Systems SCADA Programmable Logic Controller IEC-61131 MITRE ATTCK Stuxnet PLC TRISIS CPS Security Cyber-physical Systems Page 2. 2 1. Introduction Industrial
Automatic Filling System Using PLC
free download
The proposed system is simple and economical system to fill any type of liquid items in a container automatically using Programmable Logic Controller (PLC) Figure 2: PLC Based Filling System 2. Programmable Logic Controller
Real-Time Evaluation Position Control of Directional Wheel Conveyor Using Fuzzy Embedded PLC and SCADA
free download
order to track the setpoint angle. Programmable logic controller (PLC) and camera image sensor were implemented to calculate the output of wheel slip for adjusting the direction of transferring object. The fuzzy rule method is
Dynamic Gaussian mixtures to modelyze and correct the Scan-Time in PLCs. Application in Miniterm 4.0
free download
the production line. One of these devices is the PLC ( Programmable Logic Controller ). The PLC is programmed using grafcet that models the operating logic of the production line. the way a PLC works is simple. First, read the
Control of 3-Axes Robot for Pick and Place Functions Using PLCs
free download
The development of Programmable Logic Controller (PLC) has helped the improvement of workability and controllability of robot and the ease of using it The robot is controlled by the use of the programmable logic controller (PLC)
Chapter-4 Elaborated Study on Ash Handling System
free download
Coal handling is very important process because it creates ash and it will pollute the air and the environment. Earlier days, it is controlled manually and creates lot of smoke. Nowadays it becomes automatically controlled by embedded system or programmable logic controller
Automation a conveyor belt furnace for annealing metals in a protective atmosphere
free download
Belgrade, Serbia Abstract The paper presents the revitalization of a conveyor belt furnace for annealing metal, which included the design and implementation of a control system based on a programmable logic controller . TheTwo variants of interaction with third-party devices are discussed. The first is the implementation of a universal protocol by a programmable logic controller (PLC) or drive, and the second based on intermediate software module that interacts with third-party devices
Continuous Monitoring Protection of 3-Phase Induction Motors Using PLC and SCADA
free download
Some of them are Stator fault monitoring techniques, protection system using Microcontrollers, On-line fault detection, Programmable Integrated Circuit (PIC) based protection system and Programmable Logic Controller (PLC) based protection system ABSTRACT In any industry having automation work have many devices which are interconnected through wires and making all of them work together and handling their features collectively is the work of PLC ( Programmable logic Controller )
Water Treatment Plant Operating by Using SCADA
free download
Now a days Programmable Logic Controller (PLC) and SCADA systems are extensively used in industries. Industry people are encouraging use of Programmable Logic Controller (PLC) for plant automation. The origin of PLC comes from the American Automotive Industries
Performance of Winding Machine in Transmitter and Receiver for PLC Applications
free download
Tamilnadu, India3 ABSTRACT: The area of instrumentation has ushered in a modern era of global change. Monitoring the operation using a Programmable Logic Controller is extremely useful. The PLC is the control systems heart in an automatic framework
IoT-Based SCADA System Design and Generation Forecasting for Hydropower Station
free download
transformers and so on. The middle level is the controller devices such as programmable logic controller and microcontroller to control the various electronic devices for the operation process of hydropower station. The upper levelA self-tuning control system can be implemented on any modern programmable logic controller . Keywords: Neural network Adaptation Neural network regulation Neuro-controller Frechet derivative Weight coefficient 1 Introduction
Machine Information System for Bajaj Rotobar using PLC
free download
through PLC logic. A programmable logic controller is an industrial-grade computer used for the automation of machinery and processes in an industry by controlling inputs and outputs through programmable logic. The Application
An analysis of 200T hydraulic press including electrical control panel
free download
A very flexible controller is needed to indicate all the responses. In the present work describes the introduction of Programmable Logic Controller (PLC) to automate the hydraulic press. The hydraulic press is automated usingconsumption [1 18]. The control systems for EPS are mostly implemented by using Programmable Logic Controller (PLC) [19 21]. According to , the use of electric components opens the way for applying the programmable
Effect of Stirring Intervals on Biogas Production from Cow Dung and Maize Silage Mix Ratio
free download
The stirring process was automatically controlled by Programmable Logic Controller (PLC) running on SIEMENS LOGO and ATV12HU15M2 Drive using (2HP, 415V 3.9A) motor rated at 1400 rpm to 100 rpm. 2 Materials and Methods 2.1 Material Preparations
Automation Program Design of Device for Bending Coaxial Cables
free download
The device is controlled through a programmable logic controller (PLC). Coaxial cable is moved through the device with two stepper motors attached to rollers GSD General station description HMI Human machine interface PLC Programmable logic controller Page 7. 1 Cachan, France. Jean-Jacques.lesage@lurpa.ens-cachan.fr Abstract This paper deals with black-box identification of discrete event manufacturing systems that are automated using a programmable logic controller (PLC)
Microclimate Control in a Production Shop Using a Fuzzy Controller
free download
Figure 2. Representation of rules in sciFLT environment The fuzzy controller was implemented on the basis of a programmable logic controller . The development of an automated control system based on a fuzzy regulator is reduced to solving the following tasks
IMPLEMENTATION OF ARTIFICIAL INTELLIGENCE IN CONTROLLING THE TEMPERATURE OF INDUSTRIAL PANEL
free download
The paper includes two control systems executed; classical PID (Proportional Integral Derivative) and fuzzy logic with a comparison between them. Fuzzy control algorithm is developing based on Sugeno method inside PLC ( Programmable Logic Controller )
Fault Diagnosis of Wind Turbine Blades Based on Chaotic System and Extension Neural Network
free download
On the basis of a large-scale wind power generation system architecture, a 100 W small-scale wind power generation system simulation platform was first constructed and then a programmable logic controller (PLC) collected vibration sensor information
SMART CONCEPT FOR MEASURING MINES OXYGEN PERCENTAGE USING SENSOR, PLC AND HMI, NODE-RED AND INTERNET OF THINGS (CLOUD)
free download
4. Casualties can be prevented. This is a programmable logic controller based system tuned with electrochemical oxygen sensor primarily used to measure oxygen levels in the ambient air. This projects main tools are as following: 1. Programmable logic controller
Real time asset inventory in ICS
free download
assets. Also, we tested the behavior of assets during passive and hybrid asset identification by creating a Proof of Concept, including a vir- tualized Programmable Logic Controller (PLC) and Human Machine Interface (HMI)
CONE CRUSHING INDUSTRIES ENHANCE PERFORMANCE USING CONTROLLING AND MONITORING
free download
These type of plant associate with automation components like programmable logic controller (PLC), Human machine interface(HMI), drive, transmitter, energy meter, sensors and other peripheral devices to controlling as well as monitoring of he plantstructure to the main welding or soldering base. At this time motor 0 is operated. Block Diagram components are as follows, Programmable Logic Controller (PLC) MICROLOGIX 1000 DC Motors M M M M4 10 rpm Relay
Cybersecurity Threat Analysis for an Energy Rich, Small Island Developing State
free download
Besides, a network honeypot with server message block (SMB), FTP, HTTP, and ICS was set up in a fake oil company server. The ICS used was above ground storage tanks (AST) and a programmable logic controller (PLC), mostly utilised in the Oil and Gas industry
Is Your Firmware Real or Re-Hosted
free download
We describe the Re-hosting Support Layer (its definition and implementation) with the functions necessary to get a Schneider Electric SCADAPack 350 remote terminal unit, a Schneider Electric Modicon 340 programmable logic controller and Hughes 9201 BGAN inmarsat
A case study in re-hosting VxWorks control system firmware
free download
We describe the Re-hosting Support Layer (its definition and implementation) with the functions necessary to get a Schneider Electric SCADAPack 350 remote terminal unit, a Schneider Electric Modicon 340 programmable logic controller and Hughes 9201 BGAN inmarsat
EXPERIMENTAL INVESTIGATION OF SWITCHING FREQUENCY OF MAGNETIC SESNOR USING STATISTICAL APPROACH
free download
in training and research in Automation Technology of PMIST, deemed to be university in Tamilnadu,India. 2.1 Programmable Logic Controller (PLC) Control System Engineering has occupied a vital role in automation technology. Gone are
Review on PLC SCADA Based Automated System Control Applications and Challenges
free download
There are possibilities of errors at measuring and various stages involved with human workers. So a reliable monitoring system is necessary to avoid catastrophic failure, which is achieved by Programmable Logic Controller Supervisory Control and Data Acquisition system
Power Dispatch Combining Meteorological Forecast and Dynamic Game Model in Multivariate Distributed Power Generation Systems
free download
power dispatch of a distributed grid. A programmable logic controller (PLC) and human machine interface (HMI) are used to build the distributed grid for dispatching renewable energy. Moreover, the weather overview for 3 LIWT Lenox Institute of Water Technology, USA MCL Maximum contaminant level MCGL Maximum contaminant level goal MGD Million gallons per day Na2Al2O4 Sodium aluminate NaOH Sodium hydroxide ND Non-detection PLC Programmable logic controller PPB Parts perSEIMENS S7-200 PLC. Programming in PLC is written in ladder logic with the help of STEP7 MICROWIN software. Keywords: Programmable Logic Controller (PLC), T-junction Traffic light control. II. INTRODUCTION The traffic
Automation in Industrial HVAC Systems for Energy Efficiency Case Study Analysis
free download
system cost effective. Keywords:- Heating Ventilation and Air Conditioning; Intelligent Building Management System; Building Automation System; Internet of Things; Programmable Logic Controller . I. INTRODUCTION The term
AUTOMATION CONTROL FOR REVAMPING THE PROPULSION SYSTEM OF A NAVY FRIGATE
free download
change [16]. An automated electronic control system with programmable logic controller (PLC) was designed, built, installed and tested together with the ST40 engine for the replacement of the old propulsion system. The gas
A Review of the Reliability Analysis of the Complex Industrial Systems
free download
Maintainability MTTF Mean time to system failure Page 2. 258 Nabila Al Balushi PLC Programmable logic controller PM Preventive maintenance RBD Reliability block design RR Repair rate 1. INTRODUCTION The world is growing very