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XSTORAGE HOME POWER METERS MANUAL
MN700001EN March 2019 www.eaton.com/xstorage
Figure 26 shows how to wire the power meter to the RS-485
port of the communication card located on the lateral surface
of the hybrid inverter. This enables the Modbus functionality.
There are two power meters: power meter 1 (EM1) measures
the AC power injected from the grid to power up the non-
critical loads and power meter 2 (EM2) measures the AC
power generated from the existing PV system. The energy
meter is connected to the terminal RS485 of the xStorage
Home system with a 1 mm
2
cable.
•
EM2: Please wire the terminal (10) of the EM2 to the
terminal (3) of the RS-485 port. Please wire the terminal (9)
of the EM2 to the terminal (4) of the RS-485 port.
•
EM1: Please wire the terminal (10) of the EM1 to the
terminal (1) of the RS-485 port. Please wire the terminal
(9) of the EM1 to the terminal (2) of the RS-485 port. EM1
should be wired after the configuration is finalized.
Figure 26: How to wire the Eastron meters EM1 and EM2 to
the RS-485 port of xStorage Home
To finalize the set-up of the power meter it is important that
the appropriate meter is selected from the user interface. The
procedure starts with EM2 and then needs to be repeated
for EM1. Please refer to the xStorage Home user interface
onboarding process manual to setup the meter in the user
interface.
Please hold the button for three seconds, the meter will get
into set-up mode as it is displayed in the picture below.
Figure 27: Set-up mode of the power meter
Once the meter is on SET mode as described, please be sure
that from the user interface the right power meter is selected.
The addressing between the power meter and xStorage Home
is automatically made and the auto configuration is finished.
Please refer to the user interface onboarding process manual
to setup the meter in the user interface.
It is possible to verify that the process is successfully finalized
also from the energy power meter display.
For the second power meter EM1 repeat all the steps
previously made for the power meter EM2. Please note that
it is only possible to setup EM1 after finalizing the installation
of EM2. This means that the Eastron power meters are in SET
status one at a time. If both meters are in SET mode during
the installation, then addressing issues will occur. Follow
the onboarding process of the user interface to finalize the
installation of the power meters.
