Connecting The Smartlogger To A Split Emi - Huawei SmartLogger2000 User Manual

SmartLogger2000
User Manual
When connecting cables, ensure that the RS485+ and RS485- ports on the EMI respectively
connect to the COM+ and COM- ports on the SmartLogger.
----End
Follow-up Procedure
Disconnection can be performed in reverse order.

4.6.3 Connecting the SmartLogger to a Split EMI

Connecting to an EMI over a COM Port
The EMI used in Europe and Southeast Asia is composed of sensors, whose signals need to be
converted into RS485 signals (Modbus-RTU) over an extra analog-to-digital converter before
the sensors are connected to the SmartLogger.
The analog-to-digital converter should provide an RS485 port and support standard
Modbus-RTU. This section describes the connection between the SmartLogger and a split
EMI through the ADAM4117 that functions as an analog-to-digital converter.
The SmartLogger provides six RS485 communications ports. For the port descriptions, see
4.5.2 Connecting the SUN2000 over
Figure 4-16
converter.
Issue 04 (2018-04-10)
 The EMI cannot be automatically identified. After connecting cables, log in to the embedded WebUI
and manually add the EMI. For details, see
and Connection mode to Modbus-RTU.
 After adding the EMI, set parameters by following the instructions in
Port in 7.8.5.2 Setting Running
manufacturer.
 If the SmartLogger needs to be connected to an EMI and multiple inverters, connect the EMI at the
end of the daisy chain, and verify that the port connected to the EMI has a unique communications
address. For the daisy chain connection, see
SUN2000s.
shows how to connect the SmartLogger to a split EMI over an analog-to-digital
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Copyright © Huawei Technologies Co., Ltd.
7.11.8.1 Connecting
Parameters. Select the EMI model that is provided by the
Daisy Chain Connection
RS485.
4 Electrical Connection
Devices. Set Device Type to EMI
Connection over the COM
in 4.5.4 Connecting Multiple
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