8 Commissioning
SMA Solar Technology AG
36
REDUCERBOX-BA-en-16
User Manual
Obtaining Network Settings Dynamically (DHCP)
Requirements:
☐ There must be an active DHCP server in your local network.
1. Register as "Installer" on the home page of the Power Reducer Box (see Section 9.1 "Logging
In or Out of the Power Reducer Box", page 47).
☑ The "Plant overview" page opens.
2. Select [
Network and system settings
] in the main menu.
3. In the "
Obtain IP address
" field, select the value "
dynamic
".
4. Select [
Save
].
☑ The Power Reducer Box obtains its IP address from the local network DHCP server.
8.1.6 Resetting the Computer to Previous Network Settings
• Reset the computer to the previous network settings noted earlier. This allows you to access your
network again.
8.1.7 Connecting the Power Reducer Box to the Local Network
Using DHCP
Before you set the Power Reducer Box to DHCP, check whether your DHCP server can extend
the "lease time" of the IP address allocated. If the DHCP server allocates a new IP address after
the "lease time" has expired, SMA Solar Technology AG advises against using the DCHP
server.
DCHP servers can list all devices to which you have assigned an IP address. You can identify
the Power Reducer Box in the DHCP server by its MAC address. You can find the MAC address
of your Power Reducer Box on the type label.
Recommendation for network cabling
If the supplied patch cable is too short, observe the following patch cable requirements:
• You will need a shielded patch cable of cable type Cat5 or higher.
• For a total length of up to 50 m you can use a cable with AWG26/7.
• For a total length of no more than 100 m, observe the directives for structured cabling as
described in EIA/TIA-568, ISO/IEC 11801 and/or EN 50173 (cable for fixed layout
at least AWG24).
