Thank you for your reply and the time taken to assist!
If I understood right, please correct me if I am wrong:
Concerning CONTROLINO MAXI AUTOMATION:
The ON/OFF valves I can safely drive them ON or OFF directly if the current they absorb is <2A provided I use a Flyback Diode to protect the PLC, from the RELAY OUTPUTS (10).
I can also drive them via an external relay from the DIGITAL 2A OUTPUTS (
The temperature sensors DS18B20 I can read them from the DIGITAL INPUTS (12) (I thought that a sensor would be analogue yet not)
The flow sensor I can read it also from the DIGITAL INPUTS (12)
The analogue three way valve I can control it via ANALOGUE 0-10V OUTPUTS (2)
Is that right?