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14
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FAQ
FAQ
The SmartLogger cannot be powered on.
14.1
1. Check whether the power cable is connected to the power adapter.
2. Check whether the power cable is inserted into an AC socket.
3. Replace the power adapter.
4. Contact the supplier or Huawei technical support.
14.2
The SmartLogger cannot communicate with devices through RS485.
1. RJ45 network port connection: Check whether the RJ45 connector is correctly crimped with
shielded cable wires of various colors connected to the correct pins.
2. Terminal block connection: Check whether the RS485 communications cable is connected to
the correct port of the terminal block.
3. Verify that the RS485 ports of other devices are connected to the correct ports on the
SmartLogger.
4. Check the RS485 communications cable connection. If any cable is loose, drops off, or is
reversely connected, rectify the connection.
5. Power on the SmartLogger and other devices.
6. Check the baud rate and communications address settings.
7. Contact the supplier or Huawei technical support.
The SmartLogger cannot communicate with the inverters through AC
14.3
power cables.
1. Verify whether the inverters are equipped with a PLC (MBUS) STA.
2. Verify that the power cable of the SmartLogger is properly connected. If the cable is loose or
drops off, reconnect the cable.
3. Check whether the upstream circuit breaker of the AC power cable to the SmartLogger is
switched on.
4. Check the built-in PLC (MBUS) and baud rate settings of the SmartLogger.
5. Contact the supplier or Huawei technical support.
14.4
The SmartLogger cannot find devices.
1. Check the RS485 communications cable and power cable connections. If any cable is loose,
drops off, or is reversely connected, rectify the connection.
2. Check the settings of the RS485 communications parameters and built-in PLC (MBUS). Verify
that the baud rate and communications addresses are set correctly.
3. Add devices such as the EMI and electricity meter manually.
4. Check the parameter settings for the EMI.
5. Set the address of the SmartLogger to an address within the search address segment set for
the Smart Logger.
6. Contact the supplier or Huawei technical support.
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