Rectifiers & Filters Interview Questions
1. Explain what is a dc power supply? The part of the equipment that converts ac into dc is called dc power supply. 2. Explain what is a rectifier? A…
PLC Program Examples
Discuss different PLC program examples for Signal lamp task, Valve operation program and make an output switch off when any of the sensors activated.
PLC Multiple Outputs Configuration
PLC Multiple Outputs Configuration useful for PLC Sequence of Outputs or Sequence Logic, PLC Ladder Rung with two inputs & two outputs.
PLC Latching Function
PLC Latching function is a self-maintaining circuit in that, after being energized, it maintains that state until another input is received.
PLC Logic Functions
In PLC programming, we use different PLC Logic Functions based on basic logic gates like AND, OR, NOT, NAND, NOR, Exclusive OR, Exclusive NOR.
Basics of Control Valves
Valves are used for thousands of purposes, from simple and mundane tasks, such as turning on the water in a kitchen sink, to tasks as important and difficult as controlling…
Introduction to PLC Ladder Diagrams
A ladder diagram is read from left to right and from top to bottom. When the PLC is in run mode, it goes through the entire ladder program to the…
Why Use a Current Loop?
4-20mA current-loop circuit have four individual elements: a sensor/transducer, a voltage-to-current converter, loop power supply and a receiver / monitor.
Logic Gates Animation
Seven Basic Logic Gates Digital electronics relies on the actions of just seven types of logic gates, called AND, OR, NAND (Not AND), NOR (Not OR), XOR (Exclusive OR) XNOR…
Interview Questions on Fieldbus Communication
The following are the list of interview questions on fieldbus communication Fieldbus Interview Questions and Answers Fieldbus Questions Why is the H1 bus speed 31.25kbps, not something different, suitable for closed…
