Automation studio B&R PLC ST programming PART 13 - WHILE .....DO LOOP for finding highest value.

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 While do loop is used continuously monitor a condition, if the condition is fulfilled the statement insdie the loop is executed. Otherwise it will jump out of loop. In  tutorial the while is continuously monitoring the Array J[i] which is having integer value, and displaying the largest value. Download Prog file from below drive link:- https://drive.google.com/file/d/1bzc0gqOsBHh_NUvumjbhzAdq090prK-4/view?usp=sharing Explanation:- Below is the flow of While do loo[ for Program execution:- Below are the variables used in While loop example:-

Industrial Sensors Part 3 - Ultrasonic Sensor Pros cons ( Advantages & Disadvantages )

 This Video Tutorial is about Advantages and Disadvantages of Industrial Ultrasonic Sensors.

Click Below Link for Video Tutorial

Advantages and Disadvantages of Industrial Ultrasonic Sensors.




Slides :- 







Before selection of Sensor User must be aware of Disadvantage

 


Ultrasonic Sensor cannot be used in Vacuum as sound cannot trael in vacuum. this type of Sensors cannot be used in Lyophilizer and Vacuum tray drier. As these machine work under Vacuum to attain specific temperature for Vail or Pharma Medicines.
We cannot use ultrasonic sensor where detection is to be done under vacuum.




Inductive sensor is used for detecting Metal objects whereas Capacitive sensor is used for detection of Dielectric objects. UltrasonicSonic Sensor can Detect both Metallic and Non Metallic Objects Both. As Sound is used as a medium.


Photoelectric Sensor are more prone to Dust and Moisture. Dust and Moisture gets deposited in Lense of Photoelectric Sensor which may cause problem in detection.
Ultrasonic Sensor is not prone to Dust and Moisture as transmitter and receiver of Ultrasonic sensor is not affected. So ultrasonic sensor can be used in Dusty and High Humidity locations.



Ultrasonic Sensor is not only used for Distance Detection of objects but also in Identifying Shape of objects. 


Industrial Ultraonic Sensors are Ultrasonic transducer which are not designed for High Voltage application in Water.
So Industrial Ultrasonic Sensor are Designed for Air Applications.


 


Ultrasonic Sensor have limited Range as compared to Photoelectric laser Sensor.




Before Selection of Ultrasonic Sensor Operating Environment Temperature Must be noted, Sensor Opeating temperature in datasheet also must be referred before selection.



Proximity Sensor mostly fails for Sound Absorbent material like Sawdust Foam ,Cotton fiber or Foam
 






Thanks,
KOTT TUTORIAL
Rohit K


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