FTP is primarily used for two purposes: uploading firmware updates to chargers and downloading diagnostic data from them.
FTP Security
FTP can be secured in two ways:
- Secure FTP (SFTP): FTP over an SSH tunnel.
- FTPS: Secure file transfer over FTP using TLS certification.
Greenflux only supports FTPS.
Note: TLS certification is visible only in certain FTP clients, such as FileZilla, where it appears during login. The certification is not visible in WinSCP.
Supported Charger Types for FTP
Our FTP server is both public and private, therefore it can be used for any chargers connected to public and private endpoints.
- For chargers connected to our private endpoint, only our FTP server can be used as this is a closed network.
- For chargers connected to our public endpoint, any FTP server solution can be used.
Accessing FTP Account
FTP account credentials are provided during GreenFlux onboarding. For missing or lost credentials, please contact the assigned CSM.
This guide focuses on accessing FTP through WinSCP, which enables generating URL links for firmware updates and diagnostics downloads. Any other FTP client may be used instead.
Step 1:
Download the WinSCP program - WinSCP :: Official Site
Step 2:
Use the credentials provided by Greenflux to login to FTP
It is possible to save the login details for faster access in the future when using a private computer.
Step 3:
Create a folder structure as follow, if one does not already exist.
Root Folder:
- Firmware
- Manufacturer A
- Manufacturer B
- ...
- Diagnostics
Generating URLs in WinSCP for FTP File Transfers
For Firmware Update Functionality:
- Save the firmware update file in an appropriate folder (e.g., path 'Firmware\Manufacturer A')
- Right-click the saved file and select "File Names" to generate a link that can be used directly for the firmware update
- Configure the settings as shown below to generate the URL.
The syntax of the generated URL is as follows: ftp://<username>:<password>@<hostname>/<filelocation>/
- Copy the generated URL and use it in the firmware update process
Uploading Diagnostics functionality:
- Navigate to the desired Charging Station in EV Portal and click on Diagnostics.
- Click on “Get Diagnostics” on the top right page.
- Select the 'Diagnostics' folder and generate a URL link.
- Paste the URL into the "File location" field in the Get Diagnostics process.
- The file will be saved in the selected folder.