PLC and Micro Controllers

Difference between PLC and Microcontroller

1. PLC and MICROCONTROLLER Ismail Bajarla

2. What is a PLC.? A Programmable Logic Controller, or PLC, is a ruggedized computer used for industrial automation. These controllers can automate a specific process, machine function, or even an entire production line Definition:- Working:- The PLC receives information from connected sensors or input devices, processes the data, and triggers outputs based on pre-programmed parameters. Depending on the inputs and outputs, a PLC can monitor and record run-time data such as machine productivity or operating temperature, automatically start and stop processes, generate alarms if a machine malfunctions, and more. Programmable Logic Controllers are a flexible and robust control solution, adaptable to almost any application.

3. What is a microcontroller.? Definition:- A microcontroller is a compact integrated circuit designed to govern a specific operation in an embedde d system . A typical microcontroller includes a processor, memory and input/output (I/O) peripherals on a single chip . Working:- A microcontroller is embedded inside of a system to control a singular function in a device. It does this by interpreting data it receives from its I/O peripherals using its central processor. The temporary information that the microcontroller receives is stored in its data memory, where the processor accesses it and uses instructions stored in its program memory to decipher and apply the incoming data. It then uses its I/O peripherals to communicate and enact the appropriate action. Microcontrollers are used in a wide array of systems and devices. Devices often utilize multiple microcontrollers that work together within the device to handle their respective tasks .

4. Deference b/w PLC and Microcontrollers Programmable Logic Controller :- They are highly reliable, fast and flexible. They can handle severe conditions such as dust, humidity etc. They can communicate with other controllers. They are easy to program and troubleshoot. They include display units. Microcontroller :- Somewhat tedious because of machine language. Microcontrollers developed for dedicated equipment. Development time is more, This may design your own signal interfacing. Microcontroller is not a infinitely expandable I/O logic controller.

5. Popularly known PLC’s ABB Allen-Bradley Siemens Honeywell Mitsubishi Yokogawa Toshiba General electric Omron Schneider Automation Reliance Hitachi Modicon / Gould AutomationDirect / PLC Direct/Koyo Cutler Hammer

6. Thank You Ismail Bajarla