hi good afternoon all,

I am working on a swimming pool project to automated the pump filter taking temperature in account.

i have small knowledge in PLC, I would to know if someone could help me to make a program draft to help me to understand the logic.

I have a Logo, pt1000 sensor. the idea is to automated the filter:

inf T° is lower than 20°> pump running 5h

inf T° is between 20&24°> pump running 8h

if T° is upper to 24> pump running t°moy(6 previous hours) / 2 

I don't know if someone could help me 

thanks

Hello ixo,

T°moy = Average T°, if average T° is not possible,no problem we can apply  : T° / 2

Thank you

Hello , sorry I would run my pump depending to the temperature.

if T°is below or equal  20°c >pump on 5 hours;

if temperature is between 21°c & 24°c, pump on 8 hours

if temperature is upper 25°c, pump on: T°value / 2

the pump should run depending to the (température / 2) if T°c is up to 26°c

if T =26°c pump run 13hours

if T=27°c pump run 13,5hours

if T=28°c pump run 14hours

.....

If T=40°c pump run 20hours

if T=41°C pump run 20,5hours

if T=42°C pump run 21hours

...