Meinberg LANTIME/GPS Operating Instructions Manual page 134

If you want the message (any type) to appear periodically, you can set the time
interval with:
-D, --periodday D
-H, --periodhour H
-M, --periodminute M
(You can combine these options. Default is: message is displayed only once)
Possible error codes: 1=parameter error, 2=no ACK from display, 3=network error
Examples:
send2display -h 172.16.3.251 -s 0a03007f -m1 -e2 -1"Hello World" -d5 -2"what
a nice day" -d3
(shows two lines of text (2 times), 1st line is shown for 5 seconds and 2nd line
for 3 seconds)
send2display -h 172.16.3.251 -s 0a03007f -m1 -e1 -1"Oops" -H2 -M30
(shows one line of text every 2 hours and 30 minutes, a sound (beep) can be
heared while
the message is displayed)
send2display -h 172.16.3.251 -s 0a03007f -c1
(deletes the message 1, so no more beeps every 2:30 hrs ...)
send2display -h 172.16.3.251 -s 0a03007f -t"Hello world..." -e3
(shows a scrolling message with soft end, repeating it 3 times
Display message every D days
Display message every H hours
Display message every M minutes
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