11
4.2 Connection to the Inverter
4.2 Connection to the Inverter
4.2.1 Connection to a single inverter
Through RS485, the inverter is connected to EzLogger Pro for communication, and EzLogger
Pro has 3 RS485 ports, namely COM1, COM2 and COM 3.
The diagram of COM1, COM2 and COM3 ports of EzLogger Pro is as follows:
Introduce how EzLogger Pro is connected to the inverter.
Introduce RS485 communication connection mode between EzLogger Pro
and the inverter.
Figure 4.2.1-1 Schematic Diagram of COM1, COM2 and COM3 Ports of EzLogger Pro
2. COM1, COM2 and COM3 only communicate with the inverters, and COM4 is only
connected to the environmental monitor and other devices, so avoid wrong correction.
3. A of COM1, COM2, COM3 and COM4
p
corresponds to the differential , B
orts
corresponds to the differential signal -.
1. Below is the diagram of EzLogger Pro DI ports, where REF1 and REF2 occupy two ports respectively.
EzLogger Pro DI ports are compatible with RCR and DRED functions, and the ports for
different functions are defined as follows:
1
2
3 4
Figure 4.1-2 Schematic Diagram of Ezlogger Pro DI Ports
RCR
DRED
REF1
REF2
4
3
2
1
+5V
D_IN1
D_IN2
D_IN3
D_IN4
+5V
RefGen
DRM1/5
DRM2/6
DRM3/7
DRM4/8
Com/DRM0
