Yottacontrol A-52 WiFi series controller & smart phone APP quick start 
https://youtu.be/zlUVlsK4K6c

Yottacontrol A-52 WiFi controller Server item command Station item 
https://youtu.be/qNuBlpkbpIE

Yottacontrol A-52 WiFi controller Groups item data exchange with the Server item 
https://youtu.be/kFt_K_hq3uA

Use the PC/SCADA over the WiFi Router to command Yottacontrol A-52 WiFi controller Remote mode 
https://youtu.be/f5kqnglrcOU

Yottacontrol A-52 WiFi Controller Slave mode exchange the data to PC/SCADA 
https://youtu.be/IPlOBY9Byk8