Connecting Inverters; Connecting The Sun2000 - Huawei SmartLogger2000 User Manual

SmartLogger2000
User Manual
Follow-up Procedure
Disconnection can be performed in reverse order.

4.4 Connecting Inverters

4.4.1 Connecting the SUN2000

The SmartLogger can be connected to the SUN2000 through an RS485 communications cable
or AC power cable. Communication modes for the SUN2000 with PLC and those without
PLC are different. Select an appropriate communication mode based on the actual situation.
For models with the PLC function, you can select either the PLC or RS485 communications
mode. For models without the PLC function, you can select only the RS485 communications
mode.
Connecting the SUN2000 Using an RS485 Communications Cable
Context
The SmartLogger provides six COM ports for RS485 communication, as shown in Figure
4-11.
Figure 4-11 COM ports of the SmartLogger
Table 4-2 describes the COM ports.
Table 4-2 COM port description
Port
COM1
COM2
(2016-06-20)
The RS485 and PLC communication modes are mutually exclusive.
If the RS485 communications mode is selected, do not connect an AC power cable to the PLC power

input port of the SmartLogger.
If the PLC communications mode is selected, do not connect the RS485 communications cable, and

do not connect the RS485 signal SPDs.
Silk Screen
+
-
+
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Function
RS485A, for RS485 positive differential signaling
RS485B, for RS485 negative differential signaling
RS485A, for RS485 positive differential signaling
4 Connecting Cables
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