PLC Program for Artificial Fishpond Water Level Monitoring System

 This problem can be solved by using simple automation. Here we considered one artificial fishpond, four level sensors and three pumps for system monitor & control. Here we will write program that will control whole system. System will maintain normal level and it does not allow water level to go up or down to maintain the normal level. If water level goes down from the normal level then system will feed water in the fishpond and if water level goes up from the normal level then system will drain water from the fishpond.

Program

Here is PLC program for an artificial fishpond water level monitoring system.

List of Inputs/Outputs

Inputs List:-

• Level Sensor, L0 = I0.0 (L0=1 when the water level is above the alarm level).


• Level Sensor, L1 = I0.1 (L1=1 when the water level is above the normal level)


• Level Sensor, L2 = I0.2 (L2=1 when the water is above the normal level)


• Level Sensor, L3 = I0.3 (L3=1 when the water is above the alarm level)

Outputs List:-

• Feeding pump :- Q0.0


• Drainage pump 1 :- Q0.1


• Drainage pump 2 :- Q0.2


• Alarm lamp :- Q0.3