Hi,

I want to be able to adjust a waterpump troughput automatically.

I collect the troughput via analog sensors from which I calculate the LPH (liters per hour) ( B00xx-AMx ).

I would like to be able to adjust the LPH automatically to a certain preset value.

Example : measured LPH is 1000 , but i need 1500, so there should be an analog output that can be incremented or decremented by steps of 0.1 volt untill it reads 1500 in AMx ).

These waterpumps are controlled by 0-10v signal. 0-10v is sent out via an analog output.

Any ideas how I can do this please ?

Thanks !

Hi, i'm a bit lost here. I tried but fail to make it work. Maybe my starting point is not usable since i do not read an 0-10v.

I use flow meter, connected to a high speed Input port.

This Input port is then converted in liters per hour ( B045), then displayed on the Logo and a HMI

I have build some coding to manually change the flow speed .

Now I'm looking to have the speed automated to lets say 1800 LPH and here i'm stuck.

Please see the pic and the attached file.