Top 10 DCS Companies in the world
Distributed Control Systems (DCS) is being used to control a production plant or a process for over 40 years now. They were commercialized with the launch of TDC 2000 by…
Top 10 Industrial Automation companies in the world
Industrial automation and robotics enable large-scale manufacturing at a lower cost. It enables an increase in productivity and product quality. There are many industrial automation service providers around the globe.…
Interview questions on PLC (Programmable Logic Controllers)
Here are the most frequently asked Interview questions on PLC. This article aims to cover most of the interview questions on programmable logic controllers so as to prepare you to…
Difference between PLC and DCS
In the world of industrial automation, Programmable logic controllers (PLC) and Distributed Control Systems (DCS) are used to control or automate a process or a machine. They monitor the field…
Difference between NPN and PNP transistors | NPN vs PNP Transistor
The bipolar junction transistors exist as NPN and PNP types. This article intents to help you understand the difference between these two types and how to use them in a…
Proximity sensors: Types and applications
Proximity sensors are used to detect the presence of an object without any direct contact. It is used as an alternative to the limit switches. Their invention led to a…
Electromechanical relays vs solid-state relays
Relays are electrically operated switching devices, used to gain control over processes and circuits. Based on their principle of operation they are classified into two types: Solid-state relays and electromechanical…
Difference between NO and NC
In every control circuits and automation systems, logic is developed based on the open or closed state of switches, sensors or relays. Hence it is mandatory to know the concept…
Digital I/O and Analog I/O
Automation has become the backbone of almost all industries worldwide. Digital IO and analog IO are the most basic terms of any PLC/DCS based control and microcontroller-based applications. A PLC…
PLC, DCS, RTU, SCADA and PAC Systems
PLC - Programmable Logic Controller Programmable logic controllers are electronic devices used to control a process. It consists of CPU; Input and output devices, power supply, communication and redundancy units.…
