Programmable Logic Controller

PLC- Programmable Logic Controller

PLC, a Programmable logic controller is a specialized computer used to control machines and processes. It, therefore, shares common terms with typical PCs like the central processing unit, memory, software, and communications. The components of PLC are divided into three core areas.

The PLC is commonly used in civil applications such as in washing machines and for controlling traffic signals and elevators. They are used in many industries to monitor and control production processes and building systems. The Ladder logic is the most commonly used PLC programming language, it is not the only one. The following table lists of some languages that are used to program a PLC. The basic elements of PLC include input modules or points, a central processing unit, and a programming device. There are many categories of PLC all over the world. Among them the Top categories are:

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Siemens PLC

Siemens PLC technology is a German-made company. Siemens PLC is of two types. One is the Compact type or the other is the Modular/Rack type. In the compact-type PLC, all power supply, module, Input/output, and CPU are included in it. It is usually small in size and it is usually used for small type projects where there is a low need for input-output.

On the other hand, in the case of Modular type, there are varieties of section basically in the rack-made. It is usable for the big project where there is an instant need for input/output, many functions, and at a time many works need to do. In the Compact type PLC, there are many important parts.

Such as in SIMATIC s7-200, below the PLC model, there are three LED lights that indicated the status mode of PLC. In this PLC, there is a connector named communication port through which one can connect a laptop or HMI easily. There is also an Input section with a 0-7 binary bit which works through Octal. There is also an Output section where LED’s are fixed. When one give input in it and programmed it, the LED’s of the output gets on. In the Rack or Modular type PLC, the rack is the component that holds everything together. In this type of rack, the motherboard has basically stayed in the back part.  There are many Siemens PLC. Such as:

Siemens PLC

Siemens S7-300 PLC CPU 312 C- It is an entry CPU for small-scale applications with moderate requirements on the processing speed. MPI- interface on board, comprehensive integrated system diagnosis, Supports ideally the insert of SIMATIC engineering tools.  The Model number of it is 6ES7312-1AE14-0ABO. The price of it basically TK- 26,930.

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• Siemens S7-1500 PLC:  The SIMATIC S7-1500 significantly increases performance with a fast backplane bus, PROFINET interface, and shortest reaction time. It is an advanced controller convince with their ultimate power that provides maximum performance for medium-sized to the high-end machine with high demands on performance, communication, flexibility, and technology function. The price of it is TK- 23,175.
• Siemens 3200A, (ACB) 66KA 3WT Series 3WL Series 55KA, 66KA, 80KA,100KA: During the last decade, with the introduction of 3WN and 3WL Circuit Breakers, Siemens introduced a new perspective in the field of Switching technology and Intelligent communication. It has Horizontal, vertical and front terminal connections. Accurate protection through the microprocessor-based trip unit, unique ready-to-close interlock for maximum safety. The integrated LCD display and online test facility. It is typically used as incoming-feeder, distribution, coupler and outgoing-feeder in electrical systems. As incoming-feeder, distribution, tie, and outgoing-feeder circuit breakers in electrical installations. For switching and protecting motors, capacitors, generators, transformers, and cables this type of technology is used. The price of it is TK-109,200.20.

Programmable Logic Controller

Mitsubishi PLC

Mitsubishi offers a complete automation solution; design engineers can create a fully integrated control platform ranging from the touchscreen all the way to the device remote I/O module. Integration between PLC, HMI, Robot, Motion Controller, VFD, Servo and enterprise network is made possible with their straightforward programming suites. The IQ Platform unifies all of the Mitsubishi Electric automation disciplines into a one-of-a-kind modular Programmable Automation controller. The IQ platform is only capable of integrating individual Sequence, Motion, CNC, and Robot control onto a single back-plane rack. There are many types of Mitsubishi PLC. They are:

• Mitsubishi 6 Amp Miniature Circuit Breaker DP:  The price of it is 1’540. The brand name of it is Mitsubishi Japan. The Model number is BH-D6. It is mini in type. It has 6 AMP miniature circuit breakers. It is in the DP MCB series. Circuit breakers are one of the most significant components in high voltage (HV) and medium voltage (MV) power lines. In this work, the control of an MV circuit breaker is carried out both classically and with PLC and SCADA.

Mitsubishi PLC

• Mitsubishi 16Amp Adjustable:  The price of it is TK-9,500. The pole number is 3. The Model number is NF125SGV. Rated current is 16mp and the breaking capacity is 36. Mitsubishi Adjustable is a regulator that can output adjustable voltages from anywhere in the range that the voltage regulator is designed to output.

• Mitsubishi 5A Amp Molded Case Circuit Breaker:  The breaking capacity of it is 230/380: 2.5/1.5. The origin of it is in Japan. Rated current is 5Amp. The Model number is NF30-CS. The price of it is TK-2,165. The traditionally molded case circuit breaker uses electromechanical trip units that may be fixed or interchangeable. An MCCB provides protection by combining a temperature-sensitive device with a current sensitive electromagnetic device. Basically, a circuit breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by excess current from an overload or short circuit. Its basic function is to interrupt current flow after a fault is detected.
• Mitsubishi 6 Amp Miniature Circuit Breaker SP: It has SP MCB series. It is in 6 Amp miniature circuit breakers. Nowadays we use more commonly miniature circuit breaker or MCB in low voltage electrical network instead of a fuse. The MCB has some advantages compared to fuse. It automatically switches off the electrical circuit during an abnormal condition of the network means in overload condition as well as faulty condition.

• Mitsubishi Analog Input Module (FX2N-2AD): An Analog input module facilitates the connection of the controller to the analog signals of a process. They are suitable for connecting analog sensors such as voltage and current sensors, thermometers as well as analog actuators. The price of it is TK-7,425. The FX2N-2xD module with analog input is used to convert the analog input into a digital value of 12 bits, and to forward the values to the PLC controller. Products in this range are for use with FX1S, FX1N and FX2N PLC unless specified otherwise. All are DIN rail mount and are 90 mm high and 87 mm deep. The width varies and is tabled below.

Mitsubishi Circuit Breaker

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Delta PLC

Delta Electronics is a multi-billion-dollar global company and the world’s leading producer of power supplies for the top names in industrial, medical and consumer electronics devices. Delta offers automation products and solutions with high performance and reliability, including drives, motion control systems, industrial control and communication, power quality improvement, human-machine interfaces, sensors, meters, and robot solutions. They also provide information monitoring and management systems such as SCADA and Industrial EMS for complete, smart manufacturing solutions. Delta’s DVP series programmable logic controllers offer high-speed, stable and highly reliable applications in all kinds of industrial automation machines. In addition to fast logic operation, bountiful instructions and multiple function cards, the cost-effective DVD-PLC also support various communication protocols, connecting Delta’s AC motor drive, servo, human-machine interface, and temperature controller through the industrial network into a complete “Delta Solution” for all users. There is various type of Delta PLC. They are:

Delta PLC

• Delta Analog Input Module (DVP04TC-H2): The new generation DVP-EH3 PLC is the high-end model of the Delta DVP-E series. It provides larger program capacity and data registers for more demanding and complex applications. The brand-new application modules greatly shorten the data transmission time among the PLC and its extension modules as well as enhance the efficiency of the program.
• Delta Analog Input Module 4 Channel:  This module has made in China. The model of it is DVPO4TC-S. It is an Analog Interface Module used widely in the industrial automation and process control.
• Delta Analog Input Module 4-channel Temperature module TC 14 bit with RS485:  This allows the connection of four thermocouple sensors. It can read/write data by using instructions FROM/ TO via the DVP-PLC SS/SA/SX/SC MPU program.  It has many features like power supply voltage 24 VDC, Analog Input Channel 4 channels per module. Overall accuracy in it.

• Delta Analog Input/output module: An analog input converts a voltage level into a digital value that can be stored and processed in a computer. There is a multitude of sensors available that convert things like temperature, pressure, etc. into voltages. For example, in an analog audio signal, the instantaneous voltage of the signal varies continuously with the pressure of the sound waves. It differs from a digital signal, in which the continuous quantity is a representation of a sequence of discrete values that can only take on one of a finite number of values.
• Delta Analog Output module: The analog outputs convert digital values from a computer into a variable voltage level presented on an output terminal. This provides an adjustable output.

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Benefits of PLC:

PLC- Programmable Logic Controller has an indescribable benefit. Do anyone in the industry works in pressure without the help of PLC? no matter how large or small a factory is, it cannot be successful without PLC operation. PLC system makes life so easier and handy that tons of products can be manufactured in an instant with the help of PLC.

No doubt, human brains are flawless. And can think beyond of thoughts where hardly any machine ever can reach. Even, PLC machine is also the creation of humans. But it is undeniable that to err is human where machine can blindly follow the rules even in pressure. And it becomes easier with the assistance of PLC as any instruction in PLC can be changed with the requirements of products easily.

The proper application of a PLC begins with an economical justification analysis. The batch process in chemical, cement, food, and paper industries are sequential in nature, requiring time or event-based decisions. PLCs are being used more and more as total solutions to a batch problem in these industries rather than just a tool. In a batch, process savings are developed principally from reduced cycle time and scheduling. Cycle automation provides rigid control enforcement to eliminate human errors and to minimize manual interventions. Increased efficiency in scheduling is to be expected with maximum utilization of equipment and reduction of fluctuating demands on critical equipment.

In large process plants, PLCs are being increasingly used for automatic startup and shutdown of critical equipment. A PLC ensures that an equipment cannot be started unless all the permissive conditions for a safe start have been established.

It also monitors the conditions necessary for the safe running of the equipment and trips the equipment whenever any abnormality in the system is detected.

The PLC can be programmed to function as an energy management system for boiler control for maximum efficiency and safety. In the burner management system, it can be used to control the process of purging, pilot light off, flame safety checks, main burner light off and valve switching for changeover of fuels. Some advantages of Programmable Logic Controller are given below Very fast.

• Easy to change logic i.e. flexibility
• Reliable due to the absence of moving parts.
• Low power consumption
• Easy maintenance due to modular assembly
• Facilities in fault finding and diagnostics
• Capable of handling very complicated logic operations.
• Good documentation facilities
• Easy to couple with the process computers
• Analog signal handling and close loop control programming
• Counter, timer, and comparator can be programed
• Ease operator interface due to color graphic and advisory system introduction.

A basic introduction of PLC should be it is a ruggedized computer used for industrial automation. These controllers can be automated a specific process, machine function, or even an entire production line. In the most basic terms, a programmable logic controller is a computer with a microprocessor but has no keyboard, mouse or monitor. The PLC is also commonly used in civil applications such as in washing machines and for controlling traffic signals and elevators.

Programmable Logic Controller

The Principle of the programmable logic controller is used for continuously monitoring the input values from sensors and produces the outputs for the operation of actuators based on the program. Every PLC system comprises these three modules.

PLC, being the software of speedy and accurate work, it has many important components to learn which cannot be learned through books. It needs some more assistance which can get through PLC training. There are many PLC training institution in Dhaka, Bangladesh which is constantly making progressive advancement towards the path of technology. Bangladesh Automation Technologies is one of the best PLC training institutes in Dhaka, Bangladesh.

Bangladesh Automation Technologies as a PLC training institute in Dhaka, Bangladesh:

Bangladesh Automation Technologies is one of the high-quality based and perfect PLC training institutes in Dhaka, Bangladesh. Before knowing about is working style, the history of its development needs to know at first. Md. Sabuj is the founder of Bangladesh Automation Technologies in 2010.

It is now one of the best PLC training centers all over the country and held its head successfully. It is a type of training center where besides giving training, the company also import electrical device from abroad and gives the student training on it, and supply it to other industries. Among the PLC training institute in Dhaka, Bangladesh, the Bangladesh automation technologies work diligently and people find it a perfect place to be trained. In it, there is a friendly environment. They have trained a student with the aim of their success, so that, when they step outside for the job, the environment becomes favorable for them, and they can flourish their talent and make convince other companies to buy equipment from Bangladesh Automation Technologies.  Bangladesh Automation Technologies is a PLC-Based training institute in Dhaka, Bangladesh which gives any kind of solutions in PLC. Bangladesh automation technology also organized many seminars for students.

PLC training institute

They also organize many workshops for the students. They have a huge source of equipment. As they are mainly emphasizing PLC training, one can definitely be an expert in it. PLC which is fully based on logic and program language one must have the top knowledge in it to handle it professionally.  They are very patient in handling the student, and they provide a student with a healthy environment to learn things very well to have great knowledge of PLC.

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