PLC Insights | Sumble

What is PLC?

A Programmable Logic Controller (PLC) is a specialized computer used for the automation of industrial electromechanical processes, such as control of machinery on factory assembly lines, amusement rides, or light fixtures. PLCs use a programmable memory to store instructions and specific functions that include On/Off control, timing, counting, sequencing, and data manipulation. They are designed for multiple arrangements of digital and analog input and output, extended temperature ranges, immunity to electrical noise, and resistance to vibration and impact.

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What other technologies are related to PLC?

PLC Competitor Technologies

DCS

Distributed Control Systems (DCS) provide similar functionality to PLCs, but are typically used in larger, more complex applications. They may compete with PLCs in some applications.

mentioned alongside PLC in 61% (21.7k) of relevant job posts

RTU

Remote Terminal Units (RTUs) are often used in remote locations for data acquisition and control, sometimes competing with PLCs in certain applications.

mentioned alongside PLC in 43% (2.2k) of relevant job posts

PLC Complementary Technologies

HMI

Human-Machine Interface (HMI) provides a user interface for monitoring and controlling PLCs, making it a complementary technology.

mentioned alongside PLC in 70% (50.6k) of relevant job posts

SCADA

Supervisory Control and Data Acquisition (SCADA) systems often integrate with PLCs for broader process control and monitoring, acting as a complementary technology.

mentioned alongside PLC in 32% (43.1k) of relevant job posts

VFD

Variable Frequency Drives (VFDs) are often controlled by PLCs to regulate motor speed, making them complementary.

mentioned alongside PLC in 62% (12.7k) of relevant job posts