The process shown in Figure 1 is to be used to control the level of water in a storage tank by turning a discharge pump on or off. The modes of operation for which programming is required are as follows: Pump running Low level High level ONOFF High sensor switch MAN/AUTO Low sensor switch Pump motor Figure 1: The process used to control the level of water in the storage tank OFF Position –The water pump will stop if it is running and will not start if it is stopped. Manual Mode -The pump will start if the water in the tank is at any level except low. Automatic Mode -If the level of water in the tank reaches a high point, the water pump will start so that water can be removed from the tank, thus lowering the level. - When the water level reaches a low point, the pump will stop. Status Indicating Lights -Water pump running light (green) - Low water level status light (red) - High water level status light (yellow) Provide the allocation list and the ladder logic program for the above mentioned condition using direct actuation method.

Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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The process shown in Figure 1 is to be used to control the level of water in a storage tank by turning a discharge pump on or off. The modes
of operation for which programming is required are as follows:
Pump
running
Low
level
High
level
ON/OFF
High sensor switch
MANAUTO
Low sensor switch
Pump motor
Figure 1: The process used to control the level of water in the storage tank
OFF Position -The water pump will stop if it is running and will not start if it is stopped.
Manual Mode -The pump will start if the water in the tank is at any level except low.
Automatic Mode -If the level of water in the tank reaches a high point, the water pump will start so that water can be removed from the
tank, thus lowering the level.
When the water level reaches a low point, the pump will stop.
Status Indicating Lights -Water pump running light (green)
- Low water level status light (red)
- High water level status light (yellow)
Provide the allocation list and the ladder logic program for the above mentioned condition using direct actuation method.
Transcribed Image Text:The process shown in Figure 1 is to be used to control the level of water in a storage tank by turning a discharge pump on or off. The modes of operation for which programming is required are as follows: Pump running Low level High level ON/OFF High sensor switch MANAUTO Low sensor switch Pump motor Figure 1: The process used to control the level of water in the storage tank OFF Position -The water pump will stop if it is running and will not start if it is stopped. Manual Mode -The pump will start if the water in the tank is at any level except low. Automatic Mode -If the level of water in the tank reaches a high point, the water pump will start so that water can be removed from the tank, thus lowering the level. When the water level reaches a low point, the pump will stop. Status Indicating Lights -Water pump running light (green) - Low water level status light (red) - High water level status light (yellow) Provide the allocation list and the ladder logic program for the above mentioned condition using direct actuation method.
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