
New functions can be added to the device via firmware updates.
NOTE
Ensure the active DC power supply of the device
It is only possible to update all of the device’s components to the most current firmware version in this op-
erating state.
CAUTION
Damage to the device from faulty power supply
The update can fail if the power supply is interrupted during the update process. Parts of the software or of
the device itself may be damaged.
›
Never disconnect the DC and AC power supply for or during a firmware update.
›
Do not remove the USB stick during the firmware update.
Preparing a firmware update
1 Obtain a device-specific firmware update from the system manufacturer and store on your hard drive.
2 Extract the complete firmware update file to a USB stick.
»
Perform the firmware update.
NOTE
The firmware update can take several minutes. The "
Operating
" LED flashes during the update process.
The device may restart several times as required.
The following message appears if the DC power supply is too low: “DC power supply too low! Perform up-
date anyway? .
In this case, select "
No
" and perform the update with a stable power supply.
Performing a firmware update
↻
Ensure that the power supply is connected.
1 Connect the USB stick to the device.
ð
The message appears on the display: "Software found. Load?
"
2 If you would like to perform the update, press the "
Yes
" button. If "
No
", pressing the "
Enter
" button cancels the
update process and the device goes into feed-in mode.
ð
The device begins the update.
- The update has been imported in full when the inverter menu appears.
- If the update fails, the message "Software update incomplete" appears.
3 When an error occurs, the update process must be repeated.
You can check to see if the update was successful in the menu:
Displaying the firmware version
F
Open the Information / SW version menu.
»
The device will display the versions and checksums of the software that is currently loaded.
9.6
Access via Modbus
NOTE
In order to make use of the Modbus functionality, we recommend using the “SunSpec-Modbus-Interface”
specification we have made available for the firmware version installed on your device.
Follow the description in the document “Modbus-Protokol.pdf” in order to use the two Excel files with a
high level of process reliability.
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