Inverter is equipped with a powerful communications interface and options.
Use Inverter’s EZ control to monitor the status of your PV-Inverter. Also,
qualified personnel can upgrade the firmware using the RS232 port.
1. RS232: To use the RS232 port, remove the RS232 cover on the bottom
side of Inverter. It is a DB9 socket. The pin definition is
Pin Functional Description
1 N.C.
2 TxD
3 RxD
4 N.C.
5 Common
6 N.C.
7 N.C.
8 N.C.
9 N.C.
N
N.
.C
C.
.
m
me
ea
an
ns
s
“
“N
No
o
C
Co
on
nn
ne
ec
ct
ti
io
on
n”
”
2. Optional communications port: It is a powerful extension that can accept
a special card that designed for communication purpose such as RS485.
The RS485 card can be used to work with Inverter’s EZ logger as
multiple monitoring applications.
3. Firmware upgrade: To up-to-date keep the firmware, use the RS232
port and supplied program to upgrade firmware. To do this, please
contact EATON Customer Service.
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