4 Using the Inverter User Interface
SMA Solar Technology America LLC
User Manual STP50-US-40-BA-en-10 19
4 Using the Inverter User Interface
4.1 Establishing a connection to the user interface
4.1.1 Establishing a direct connection via WLAN
Requirements:
☐ The product must be commissioned.
☐ An end device (e.g. computer, tablet PC or smartphone) must be available.
☐ The respective latest version of one of the following web browsers must be installed: Chrome,
Edge, Firefox, Internet Explorer or Safari.
☐ JavaScript must be enabled in the web browser of the end device.
☐ The SMA Grid Guard code of the Installer must be available for the changing of grid-relevant
settings after completion of the first ten feed-in hours or installation assistant (see "Application
for SMAGridGuard Code" at www.SMA-Solar.com). A charge is levied for this code.
Inverter SSID and IP address and necessary passwords
• Inverter SSID in WLAN: SMA[serial number] (e.g. SMA0123456789)
• Standard WLAN password (usable until completion of the configuration by means of the
installation assistant or prior to the end of the first tenfeed-in hours): SMA12345
• Device-specific WLAN password (usable for initial configuration to completion of the first
tenfeed-in hours): see WPA2-PSK on the type label of the inverter or on the back of the
manual included in the delivery
• Standard IP inverter address for a direct connection via WLAN outside of a local
network: 192.168.12.3
Importing and exporting files with end devices having an iOS operating
system is not possible.
For technical reasons, importing and exporting files (e.g. importing an inverter configuration,
saving the current inverter configuration or exporting events) is not possible with mobile end
devices having an iOS operating system.
• Use an end device that does not have an iOS operating system for importing and
exporting files.
The procedure can be different depending on the end devices. If the procedure described does not
apply to your end device, establish the direct connection via WLAN as described in the manual of
your end device.
Procedure:
1. If your end device has a WPS function:
• Activate the WPS function on the inverter. To do this, tap twice in succession on the
enclosure lid of the DC connection unit next to the LEDs.
☑ The blue LED flashes quickly for approx. two minutes. The WPS function is active.