SMA WEBBOX-BT-20 - Manual (Page 30)

Sunny WebBox with Bluetooth: Basics SMA Solar Technology AG
30 SWebBox20-BA-en-13 User Manual
4.2.3 Access Security for the Sunny WebBox with Bluetooth
Each user group is protected with a freely selectable password. Passwords are transmitted in
encrypted form. If the password is entered incorrectly four times, access to the Sunny WebBox is
blocked for 15 minutes. You can then log in again.
Protect your PV plant against unauthorised access by taking suitable precautionary measures, such as:
• Setting up secure passwords (see Section 4.2.4 ”Strength of Passwords” (page 30)).
• Changing passwords at regular intervals.
• Using different passwords for different user groups.
• Never leaving slips of paper with passwords written on around.
• Setting up a firewall in Ethernet networks.
• Closing unnecessary network ports in Ethernet networks.
4.2.4 Strength of Passwords
To increase the security of your password, bear in mind the following advice when selecting the
password:
• Select a password with at least 8 characters. The longer the password, the more secure it is.
• Do not use names or terms from dictionaries (e.g. "Dog", "Cat", "Mouse" etc.).
• Do not use data related to your person as passwords (e.g. names of persons or pets, personal
numbers or identification numbers, car registration plates etc.).
• Do not repeat names or words (e.g. "househouse", "carcar" etc.).
• Use a combination of upper and lower case letters, special characters and numbers.
• Do not use combinations of numbers or letters in the same order as they appear on your
keyboard (e.g. "12345", "qwerty" etc.).
4.2.5 SMA Grid Guard
SMA Grid Guard is a security concept for country-specific settings in the inverter which define the
network behaviour in an electricity grid. These settings (Grid Guard parameters) are preset in the
devices and can only be changed via the SMA Grid Guard password. In order to change
SMA Grid Guard parameters, you will need to be logged in as an installer and you will need your
personal SMA Grid Guard password, which you can obtain from SMA Solar Technology AG.
You can find the application form for the personal access code in the download area of
www.SMA-Solar.com, in the "Data sheet" section of the respective inverter.