I am using sma cluster controller as a gateway to communicate with pv inverter thought modbus tcp.
However, cluster controller always respond modbus exception illegal function for the command I used below
00 01 00 00 00 06 03 04 00 04 00 02
to read the 30005 data from inverter
00 01 00 00 00 06 01 04 00 04 00 02
to read the 30005 data from cluster controller, both fail
I have enable modbus tcp function and config my inverter to be Unit ID 3
Anyone with experience in sma can help?
However, cluster controller always respond modbus exception illegal function for the command I used below
00 01 00 00 00 06 03 04 00 04 00 02
to read the 30005 data from inverter
00 01 00 00 00 06 01 04 00 04 00 02
to read the 30005 data from cluster controller, both fail
I have enable modbus tcp function and config my inverter to be Unit ID 3
Anyone with experience in sma can help?