13) Write a program to implement the process illustrated in the figure below. The sequence of operation is to be as follows: • Normally open start and normally closed stop pushbuttons are used to start and stop the process. • When the start button is pressed, solenoid A energizes to start filling the tank. • As the tank fills, the empty level sensor switch closes. • When the tank is full, the full level sensor switch closes. • Solenoid A is de-energized. • The agitate motor starts automatically and runs for 3 min to mix the liquid. 15 • When the agitate motor stops, solenoid B is energized to empty the tank. • When the tank is completely empty, the empty sensor switch opens to de-energize solenoid B. • The start button is pressed to repeat the sequence.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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13) Write a program to implement the process illustrated in the figure below. The sequence
of operation is to be as follows:
• Normally open start and normally closed stop pushbuttons are used to start and stop the
process.
• When the start button is pressed, solenoid A energizes to start filling the tank.
• As the tank fills, the empty level sensor switch closes.
• When the tank is full, the full level sensor switch closes.
• Solenoid A is de-energized.
• The agitate motor starts automatically and runs for 3 min to mix the liquid.
15
• When the agitate motor stops, solenoid B is energized to empty the tank.
• When the tank is completely empty, the empty sensor switch opens to de-energize
solenoid B
• The start button is pressed to repeat the sequence.
SOL A
Motor
Full
sensor
switch
Empty
sensor
switch
+SOL B
Start/stop
control station
Transcribed Image Text:13) Write a program to implement the process illustrated in the figure below. The sequence of operation is to be as follows: • Normally open start and normally closed stop pushbuttons are used to start and stop the process. • When the start button is pressed, solenoid A energizes to start filling the tank. • As the tank fills, the empty level sensor switch closes. • When the tank is full, the full level sensor switch closes. • Solenoid A is de-energized. • The agitate motor starts automatically and runs for 3 min to mix the liquid. 15 • When the agitate motor stops, solenoid B is energized to empty the tank. • When the tank is completely empty, the empty sensor switch opens to de-energize solenoid B • The start button is pressed to repeat the sequence. SOL A Motor Full sensor switch Empty sensor switch +SOL B Start/stop control station
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