Netgear M4300-96X Backup config

I would like to backup or get the Switch Configuration (Netgear M4300-96X) per scp or SFTP with ascript without typing the password. I have a FileZilla FTP Server installed and created a FTP User. I can connect to the Switch per SSH.

I can also save the config as a .TXT from Web UI. But i would like to automate this task through the FTP User or from the switch as cron Job to the FTP Server.

I appricate your help in advance.

Best regards.

Nizo