Does solax IES inverter support parallel solution?

Yes, for X3-IES, the inverter provides the parallel connection function. Up to 10 inverters can be connected in one system with an X3-PBOX-60kW-G2/ X3-PBOX-150kW-G2 (hereafter referred to as X3-PBOX device). Up to 3 inverters can be connected in one system if no X3-PBOX device is equipped. One inverter will be set as the “Master inverter” to control the other "Slave inverters" in the system via P1/P2 port of the COM port of the inverter.
For X1-IES, the inverter provides the parallel connection function. Up to 2 inverters can be connected in a system. In this system, one inverter will be set as the “Master inverter” to control theother "Slave inverter" in the system via CAN.
Also there are some requirement for parallel connection as below:
a. The two inverters should be of the same software version.
b. The two inverter models should be of the same power range.
c. The type and quantity of batteries connected to the two inverters should be the
same.