Communication & Monitoring; Rs485 And Plc Communication Connection - CanadianSolar CSI-100K-T400 Installation And Operation Manual

4. Communication & Monitoring

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 and COM3 are RS485
connection between inverters and both RJ45 and Terminal block are provided for use .
Monitoring system for multiple inverters
Multiple inverters can be monitored through RS-485 daisy chain configuration.
PV Strings
Inverter
PV Strings
Inverter
PV Strings
Inverter
Figure . Multiple inverter monitoring system 4 1
NOTE
One of the RS485 and PLC communication methods is available.
.26.
PC monitoring
Datalogger
Internet
DC
RS485
(RS485)
4. Communication & Monitoring
PLC is available for multiple inverter monitoring.
PV Strings Inverter
PV Strings Inverter
PV Strings Inverter
PV Strings
Inverter
Figure . Multiple inverter monitoring system 4 2
PLC CCO
Datalogger
Transformer Grid
DC
AC
RS485
PLC
(PLC)
.27.