Can I use Alarm Task Script for JPEG post to FTP every 30 minutes?

JpegPosting PicPosting := {IP("ftp.example.com") // Replace with your FTP server IP or hostname
Login("username") // Replace with FTP username
Password("password") // Replace with FTP password
Format(Large)
FileName("Snap")
Suffix(Date)
Camera(All)
};

// Define periodic operation: 30 minutes (1800 sec = 1800000 ms)
OperationMode periodic := { Low(1800000) High(1000) }; // High = 1 second for snapshot trigger

// Initialize temp state with periodic trigger
TempState(1) := periodic;

// Trigger JPEG posting only during the High period
if (TempState(1)) then
PicPosting;