SMA SUNNY WEBBOX - Manual (Page 69)

SMA Solar Technology AG / SMA America, LLC Service Functions
User Manual SWebBox-BA-en-36 69
4. Insert the SD memory card into the SD memory card slot of the Sunny WebBox.
5. Log into the Sunny WebBox as an installer.
6. Check whether the communication via the RS485 communication bus is working properly.
Select "Plant > Settings" and check whether any error is displayed in the area "SMACOM frame
error".
If errors are displayed, correct them. Perform the following steps:
– Check the cabling of the devices on the RS485 communication bus. Refer to the
RS485 cabling plan for information on how to connect the cables to the
RS485 communication bus.
– Make sure that the RS485 cable is properly connected to the Sunny WebBox. Check all the
terminals (see Section 6.9.2 "Connecting the Sunny WebBox to the RS485 Communication
Bus" (page 34)).
– Check the termination and signal biasing of the RS485 communication bus (see Section
6.9.2 "Connecting the Sunny WebBox to the RS485 Communication Bus" (page 34)).
7. Select "Plant > Update > System update" in the user interface.
8. Select "Yes" in the field "Use update".
9. Select "Manual" in the field "Operating mode".
10. Select "SD card" in the field "Update source".
11. Select "Immediately" in the field "Update time".
12. Enter "0000" in the field "Plant password".
13. Select [Save].
14. As soon as the update files found on the SD memory card are displayed in the area "Available
updates", perform the desired firmware updates. Select [Send] in the line with the update file
found.
☑ The Sunny WebBox transfers the update file to the corresponding inverters in the system. The
update procedure can take up to four hours. During the update procedure, the
Sunny WebBox does not save any PV system data.
15. Wait until the update procedure is completed.
16. Check wether the inverters are communicating with the Sunny WebBox. Redetect the inverters,
if necessary (see Section 8.2 "Detecting Devices" (page 44)).
17. Check whether the new firmware version is installed on the inverters and whether the inverters
are feeding in. You can read off the firmware version either from the inverter display or from the
parameter list of the inverter. Go to "System > Devices", select the desired inverter in the system
tree and the tab "Parameters". The firmware version is displayed under "Mdl.swRev".