Connecting An Emi; Connection Description; Connecting The Smartlogger To An Emi That Supports Standard Modbus-Rtu - Huawei SmartLogger2000 User Manual

SmartLogger2000-(10-C, 11-C)
User Manual

4.6 Connecting an EMI

4.6.1 Connection Description

There are two types of EMIs. One is a standard EMI that supports Modbus-RTU, and the
other is a split-type EMI that consists of various sensors.
The SmartLogger connects a standard or split-type EMI that supports Modbus-RTU over a
COM port, connects to a split-type EMI composed of current or voltage-type sensors over an
AI port, and connects to a PT100/PT1000 temperature sensor over a PT port. The connection
mode depends on site requirements.
One SmartLogger can manage multiple EMIs or multiple groups of EMIs.
4.6.2 Connecting the SmartLogger to an EMI That Supports
Standard Modbus-RTU
Context
Devices from different vendors may support different protocol specifications. To normally
obtain information from the connected EMI, correctly configure the protocol specifications on
the WebUI of the SmartLogger based on the protocol specifications delivered by the vendor.
For the definition of the RS485 communications cable for the EMI, see the delivered
operation guide.
The SmartLogger provides six RS485 communications ports. For the port descriptions, see
4.5.2 Connecting the SUN2000 Over
Figure 4-15
communications cable.
Figure 4-15 Connecting the SmartLogger to an EMI
Issue Draft A (2017-02-15)
The recommended connection methods are as follows:
 Connect over a COM port if a COM or AI port is to be connected.
 Connect a current-type AI port if an AI port is to be connected.
shows how to connect the SmartLogger to an EMI over an RS485
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RS485.
4 Electrical Connection
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