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4. Comm. & Monitoring
2. Use the unlock tool to insert into the groove on the sleeve and pull the sleeve to disconnect
from the connector.
4.1 Inverter monitoring connection
Canadian Solar can provide optional accessories such as one-to-one datalogging sticks
including WiFi stick, GPRS stick and LAN stick for the monitoring of a single inverter or
one-to-multiple datalogging boxes including WiFi box and GPRS Box for the monitoring
of multiple inverters.
Please refer to corresponding manuals for details.
4.1.1 Monitoring for a single inverter
Every inverter can connect a one-to-one datalogging stick for remote monitoring purpose.
The datalogging stick should be directly connected to the 4-pin COM port at the bottom of the
inverter. It is a simple plug and play design with fast installation time. Details and the rest
configuration process please refer to the datalogging stick manual.
.28.
Figure 4.5
4. Comm. & Monitoring
4.1.2 Monitoring for multiple inverters
When multiple inverters need to run daisy chain communication together, Pin3/4 and Pin6/7
of the 16-Pin COM Port can be used.
PV Strings
Inverter
PV Strings
Inverter
PV Strings
Inverter
Figure . Multiple inverter monitoring system
4 6
The bus RS485 cable can run into a Canadian Solar one-to-multiple datalogging box or any
compatible 3rd party monitoring devices, PPC or plant SCADA.
PC monitoring
Datalogger
Internet
DC
RS485
(RS485)
Pin
Definition
Description
3
COM1 485-A
RS485 IN A
4
COM1 485-B
RS485 IN B
6
COM2 485-A
RS485 OUT A
7
COM2 485-B
RS485 OUT B
Figure 4.7
.29.
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