Heating, Ventilation and Air Conditioning System.
PLC with RS485 communication could connect with HMI or RS485 devices via Modbus RTU, PLC with 2AI inputs 0-20mA 4-20mA, 0-5V 0-10V could connect analog sensors and temperature sensor. PLC could control valves and pumps. Customers' remote control systems for temperature, humidity, air cleanliness and air circulation can be realized remotely.