User Manual
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A converter such as Logger 3000 is needed between inverter and PC.
6.5.2 Communication System
For Single Inverter
Where there is only one inverter, a RS485 cable enables connection between
inverter and data logging device.
Inverter
RS485-2
Data Logger
Ethernet
terminal
PC
RS485
terminal
Ethernet port
RS485 cable
Ethernet cable
RS485 Communication of inverter
Inverter
Communication Connection
(RS485 bus connection)
Terminating Resistor
Single one
Only out.
No
120ohm
For Multiple Inverters
Where there is more than one inverter, all inverters can be connected to data
logging device in daisy chain. The first and last inverters in the chain must be
terminated with a resistor of 120
Ω.
The shielding layer of RS485 cable should be
single-point grounded.
The length of RS485 communication cable should be less than 1200m.
If several inverters communicate with each other and connect to the
Logger 3000, at most 4 daisy chains are supported and 60 devices in
total can be connected (i.e. 4 daisy chains can be connected with at
most 15 devices connected to one chain or 3 daisy chains are
connected with at most 20 devices connected to one chain).
