Sungrow SG250HX-IN-20, User Manual, Page: 59 / 109

49
M Mu ullttii--iin nvve errtte err c co om mm mu un niic ca attiio on n ssyysstte em m
In case of multiple inverters, all the inverters can be connected via RS485 cables in the
daisy chain manner. The communication cable of the tracking system can be
connected to the port RS485_2 of any inverter in the daisy chain.
When more than 15 inverters are connected on the same daisy chain, configure the
RS485- dip switches of the inverters on two ends of the chain (RS485_1 is
corresponding to SW2, and RS485_2 is corresponding to SW1), to ensure
communication quality.
User Manual 5 Electrical Connection