PLC, HMI, and Inverter Automation Controlling: Best Guide In Just 5 Minutes

Introduction Inverter Automation Controlling

PLC is the Programmable Logic Controller. It is used for industrial controlling applications PLC makes decisions based upon a custom program to control the output devices.

HMI is the Human Machine Interface between the processor machine and the operator. Human Machine Interface (HMI) is the primary tool operators and engineers use to coordinate, control industrial automation manufacturing processes and devices.

Inverters play an essential role in industrial control applications and any solar energy system. The primary function of an inverter is to invert the direction of the current.

The inverter is used to converts direct current into alternating current. PLC, HMI, and inverter automation controlling systems widely used in every manufacturing industry.

Benefits of PLC

There are a lot of advantages to Programmable Logic Controller for automation purposes. Programmable Logic Controller used more for the industrial controlling system due to benefits of PLC such as

  • Easy PLC programming for the plant
  • High reliability and low maintenance
  • Small place required due to small PLC size
  • Ability to communicate with computer systems in the plant
  • The low initial cost to PLC moderation
  • Available in modular design
  • Simple construction for small-medium, and big application
  • Labor cost is reduced for medium and big application

Advantages of HMI

HMI is the worth of your company. HMI is the main component to contact between the user and a controlling process. The advantages of HMI are listed below

  • To get alarmed due to fault condition
  • To obtain reliable messaging
  • Easy overall management system
  • Exact testing with simulation
  • Cost minimization
  • Increase communication system
  • Increase productivity
  • Low cost for all applications
  • Simple construction
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Advantages of Inverter

The inverter is an essential device in an electric circuit PLC, HMI, and inverter automation control is widely used in industries or manufacturing industries. The advantages of an inverter are below

  • Smoothing motor starting
  • Smooth acceleration and deceleration
  • Motor all stopping method
  • Motor forward and the reverse direction
  • Improve power factor
  • Reduce machine harmonics
  • Simple construction
  • Small place required for big application
  • It can detect short circuit current

PLC and HMI Programming

Most modern industrial automation control systems employ a Programmable Logic Controller to control motors, pumps, conveyors, boiler, valves, and various other equipment used in a control process.

Computer-based HMI products provide programming information on how to process personnel interact with the factory Logic Control system.

A well-designed combination of Programmable Logic Controller and Human Machine Interface may be a solid foundation for your automation process.

Programmable Logic Controller has inserted type controllers of ladder logic programming language with set-points of the programmable control parameter for a controlling function of factory automation.

HMI is a computer-based machine control interface with frequently configurable software and broader functionality.

Our goal is to provide efficient automation services and solutions, well-documented programs that blend well with our skilled automation engineer’s remaining system logic and maintenance.

Our comprehensive control system history and knowledge of current development platforms give us to provide proven technologies that may increase your automation process efficiencies.

Bangladesh Automation Technologies always engage to provide PLC, HMI, and inverter automation controlling system.

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Modbus Controlling system

Modbus controlling system is a serial communication protocol. It was developed by Modicon Company and published by Modicon in 1979 to use PLC for controlling purposes.

In simple terms, it is a method used for sending information by serial lines between electronic devices. The device requesting the information is called the Modbus Master communication, and the devices sending information are called Modbus Slaves communication.

In a standard Modbus network. Modbus controlling has a standard communications protocol in the factory, and it is now the most commonly used of connecting industrial electronic devices.

Modbus is typically used to sending signals from instrumentation and control devices back to a central controller or data acquisition system.

Modbus is often used to connect a supervisory Control and Data Acquisition (SCADA) computer with a remote terminal unit (RTU).


Programmable Logic Controller is widely used in textile, chemical fiber, pharmaceuticals, machine tools, cables, food and beverage, packaging, steel, construction machinery, air conditioning, conveyer belt, boiler control, elevators, printing, and other machinery control manufacturing industry.

HMI has many advantages, such as rich display, large memory and powerful configuration function, and a simple human-machine interface that can quickly realize computer interaction function in various industrial automation fields. PLC, HMI, and inverter automation controlling system is a crucial part of the industrial automation process.

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