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Q2: Level and Temperature Control of a Tank The figure below shows a sketch of an open tank that is installed in the plant of which liquid level and temperature are to be controlled. Design a typical PLC program for this control process. The sequence of operations for this system is as follow: 1. Master start/stop is also provided to shut down or start the entire process 2. To detect high and low level of liquid in the tank, two level switches are used which gives output in digital terms, that is when corresponding levels are detected, it gives output high otherwise remain low. 3. Inlet valve to control inlet process flow and outlet valve to control outlet process flow. 4. When level reaches the Level Low, Outlet flow is blocked, and inlet flow is allowed until high level is achieved. 5. A temperature sensor (NO) is used for measuring the temperature of the tanks. 6. Heating process is used to heat the material in the tank. 7. The heater is switched on when the tank is full, and the temperature is below the desirable temperature. 8. Outlet valves are used at the bottom of the tanks to drain the materials when the desirable temperature and level high are satisfied. material START STOP LH 1 Heater LL 1 Outlet valve V4 Product A To heat umentationTools.com TT 1 •

Q2: Level and Temperature Control of a Tank The figure below shows a sketch of an open tank that is installed in the plant of which liquid level and temperature are to be controlled. Design a typical PLC program for this control process. The sequence of operations for this system is as follow: 1. Master start/stop is also provided to shut down or start the entire process 2. To detect high and low level of liquid in the tank, two level switches are used which gives output in digital terms, that is when corresponding levels are detected, it gives output high otherwise remain low. 3. Inlet valve to control inlet process flow and outlet valve to control outlet process flow. 4. When level reaches the Level Low, Outlet flow is blocked, and inlet flow is allowed until high level is achieved. 5. A temperature sensor (NO) is used for measuring the temperature of the tanks. 6. Heating process is used to heat the material in the tank. 7. The heater is switched on when the tank is full, and the temperature is below the desirable temperature. 8. Outlet valves are used at the bottom of the tanks to drain the materials when the desirable temperature and level high are satisfied. material START STOP LH 1 Heater LL 1 Outlet valve V4 Product A To heat umentationTools.com TT 1 •

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Q2: Level and Temperature Control of a Tank The figure below shows a sketch of an open tank that is installed in the plant of which liquid level and temperature are to be controlled. Design a typical PLC program for this control process. The sequence of operations for this system is as follow: 1. Master start/stop is also provided to shut down or start the entire process 2. To detect high and low level of liquid in the tank, two level switches are used which gives output in digital terms, that is when corresponding levels are detected, it gives output high otherwise remain low. 3. Inlet valve to control inlet process flow and outlet valve to control outlet process flow. 4. When level reaches the Level Low, Outlet flow is blocked, and inlet flow is allowed until high level is achieved. 5. A temperature sensor (NO) is used for measuring the temperature of the tanks. 6. Heating process is used to heat the material in the tank. 7. The heater is switched on when the tank is full, and the temperature is below the desirable temperature. 8. Outlet valves are used at the bottom of the tanks to drain the materials when the desirable temperature and level high are satisfied. material LH 1 Heater LL 1 Outlet valve V4 Product A To heat 40₂ umentationTools .com TT 1 START STOP
Transcribed Image Text:Q2: Level and Temperature Control of a Tank The figure below shows a sketch of an open tank that is installed in the plant of which liquid level and temperature are to be controlled. Design a typical PLC program for this control process. The sequence of operations for this system is as follow: 1. Master start/stop is also provided to shut down or start the entire process 2. To detect high and low level of liquid in the tank, two level switches are used which gives output in digital terms, that is when corresponding levels are detected, it gives output high otherwise remain low. 3. Inlet valve to control inlet process flow and outlet valve to control outlet process flow. 4. When level reaches the Level Low, Outlet flow is blocked, and inlet flow is allowed until high level is achieved. 5. A temperature sensor (NO) is used for measuring the temperature of the tanks. 6. Heating process is used to heat the material in the tank. 7. The heater is switched on when the tank is full, and the temperature is below the desirable temperature. 8. Outlet valves are used at the bottom of the tanks to drain the materials when the desirable temperature and level high are satisfied. material LH 1 Heater LL 1 Outlet valve V4 Product A To heat 40₂ umentationTools .com TT 1 START STOP
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