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1- Write a PLC ladder program to implement the process illustrated in Figure. 2- Indicate all the input and output field devices in their un-actuated conditions with symbolic addresses.

1- Write a PLC ladder program to implement the process illustrated in Figure. 2- Indicate all the input and output field devices in their un-actuated conditions with symbolic addresses.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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1- Write a PLC ladder program to implement the process illustrated in Figure. 2- Indicate all the input and output field devices in their un-actuated conditions with symbolic addresses. The sequence of operation requires that: A start/stop pushbutton station is used to start and When the process starts, the tank is empty and solenoid A energizes to start filling the tank with liquid. As the tank fills, the Empty sensor switch closes. When the tank is half full, the Mid-full level sensor switch closes and the motor starts running to mix the liquid. When the tank is full, the Full level sensor switch closes momentarily so that: stop the process. a- The motor stops. b- Solenoid A is de-energized. c- 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. out Puts SOL A oulput Motor Infut Full level sensor switch Mid-Full level Empty sensor sensor switch switch SOL B Start/stop control station ou'Put infud inpot
Transcribed Image Text:1- Write a PLC ladder program to implement the process illustrated in Figure. 2- Indicate all the input and output field devices in their un-actuated conditions with symbolic addresses. The sequence of operation requires that: A start/stop pushbutton station is used to start and When the process starts, the tank is empty and solenoid A energizes to start filling the tank with liquid. As the tank fills, the Empty sensor switch closes. When the tank is half full, the Mid-full level sensor switch closes and the motor starts running to mix the liquid. When the tank is full, the Full level sensor switch closes momentarily so that: stop the process. a- The motor stops. b- Solenoid A is de-energized. c- 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. out Puts SOL A oulput Motor Infut Full level sensor switch Mid-Full level Empty sensor sensor switch switch SOL B Start/stop control station ou'Put infud inpot
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