In this Instructable I will tell you about an example of home automation controlled by a ZELIO SR3 PLC and Arduino boards used to measure and control light, heat and humidity.
This system is used by my students to learn basics of automation.
Step 1: The System Organization and the Schematic
The ZELIO PLC is the master of this system in which you have to download a program made under ZELIO SOFT 2 software (Free). This PLC is combined with 2 additional cards:
-one to communicate in MODBUS RTU with the HMI
-an other one including analog 0/10V inputs and outputs.
Step 2: The Industrial HMI
I wired a COOLMAY MT6050HA HMI according to the supplied schematic and tutorial. I give you too, the HMI program and the Zelio program.
Step 3: The Arduino Clone Boards
I used 3 Arduino clone boards:
-as a 0/10V to 0/12V DC dimmer for Led lamps
-as a measurement system for °C/%/Lux to three analog 0/10V DC outputs.
-as a 0/10V to 0/230V AC dimmer for the heater.
They are only slave with no other functions programed.
Step 4: An Example of a Project
Just an example sheet files project given to my students.
Step 5: Conclusion
It's a very robust system but If you have got some communication problems with the 0/10V outputs/inputs due to EMC interferences (for long wires), I advise you to use shielded cables.
Thanx to all valuable instructables all over the net.