Users can select RS-485 1/2/3 to communicate during RS-485 communication. If selecting our
company’s WIFI200, GPRS 200 for monitoring, users only need to connect WIFI200 and
GPRS200 to RS-485 3 to communicate.
5.6 USB connection (reserved)
USB communication interface is used for software update only!
During software update, please connect USB cable to USB interface of inverter.