4. Comm. & Monitoring
4. Comm. & Monitoring
.27.
.26.
Monitoring system for multiple inverters
Multiple inverters can be monitored through RS-485 daisy chain configuration.
Internet
Datalogger
PC monitoring
PV Strings
Inverter
PV Strings
PV Strings
Inverter
Inverter
Figure . Multiple inverter monitoring system
4 1
(
RS485
)
DC
RS485
Inverter
PV Strings
Inverter
PV Strings
Inverter
PV Strings
Inverter
PV Strings
Grid
Transformer
PLC
CCO
Datalogger
DC
AC
PLC
RS485
PLC
is
available
for
multiple
inverter
monitoring.
One of the RS485 and PLC
communication
methods
is
available.
NOTE
Figure . Multiple inverter monitoring system
4 2
(
PLC
)
4.1 RS485 and PLC communication connection
There are 5 communication terminals on the inverters.
COM1 is a 4-pin connector reserved for WiFi/Cellular datalogger.
COM2 - COM3 are used for RS485 communication between inverters.
Both RJ45 and terminal block are provided for use.
COM4 or COM5 can be used for DRM connection.
Detailed connection please refer to 4.2 section.
