Home Energy Management System (Hems) - Webasto Next Operating And Installation Instructions

11 | Home Energy Management System (HEMS)

Smart Meter
(compatible with EMS)
Power consumers
Fig. 17
11 Home Energy Management
System (HEMS)
The Webasto Next can be integrated into a range of energy
management systems (EMS). Here, the external EMS module is
connected to the wall box via a router or DHCP switch. This
communication makes use of the Modbus TCP protocol via the
RJ45 port. A connection between the wall box and router can
also be made using WLAN, but this setup is not recommended
when using an EMS system on account of the potentially un-
stable connection.
A list of compatible EMS modules can be found at https://char-
ging.webasto.com/en-uk/products/webasto-next/.
Depending on the EMS selected, functions such as photovoltaics
(PV) excess charge or dynamic load management with multiple
wall boxes (cluster) are possible.
The EMS communication protocol for the Webasto Next can be
enabled in the Setup app https://charging.webasto.com/en-
uk/products/webasto-next/ or via the integrated WebUI
chapter 9, "WebUI" on page 12.
Alternatively, the Webasto Next can be connected to the EMS
module directly using an Ethernet cable. However, this type of
connection is not recommended as both devices required a
static IP address.
NOTE
Assign a static IP address to all Webasto Next wall
boxes using the settings on your Internet router.
PV
DC/AC
Solar
Inverter
Power consumers
Fig. 18
14 / 23
Internet
Router
(DSL or 4G)
Webasto Next
EMS
Internet
Switch Router
(optional) (DSL or 4G)
Smart Meter
(compatible with EMS)
Webasto Next
Grid
AC
Data
Grid
AC
Data
DC
5111232C OI-II Webasto Next_EN