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…
Top 10 Common Mistakes on Electrical Systems
1. Thinking that it's "only 120 volts" or 208 volts or 480 volts or... Dr. A.G. Soto, consulting physician to Ontario Power Generation presented a paper at the 2007 IEEE…
Why we use Negative Voltage in Vibration Measurement ?
An Excellent Answer by Bently Nevada Employee: As a 20-year Bently Nevada employee, and as someone responsible for answering such questions over the years within our company as well as…
Ultrasonic Sludge Blanket Level Meter Animation
Sludge Level Probe uses an ultrasonic pulse to accurately measure the sludge level. An ultrasonic signal sent from the probe is directed towards the sludge blanket in the tank. Height…
Serial Communication Interview Questions and Answers
We prepared a list of Serial Communication Interview Questions for your interview preparation. Go ahead with this article and get your basics back. Hope you will love this article. share…
