Description Data lock, originally known as paranoia, allows you to lock the module
from displaying information, as well as enables the protection of the
filesystem and module settings. Each bit corresponds corresponds to a
different lock level, while sending a zero will unlock your display as the
following tables explains:
Bit Binary Data Lock Level Description
0 0 Unlock Sending a zero will cause
the display to unlock.
1-4 1-1111 Reserved
5 10000 Setting Lock Locks the display settings
such as backlight, contrast
and GPO settings.
6 100000 Filesystem Lock When locked no bitmap or
font files may be added,
deleted or modified.
7 1000000 Command Lock Locks all commands but
the the data lock command.
8 10000000
NOTES
• Sending a new data lock level will override the previous data lock level.
• Data lock levels may be combined.
Remembered Always
Factory Default 0
Examples
Hex Dec Binary Description
0x00 0 0 Unlock
0xF0 240 11110000 Setting, Filesystem, Command and Display Lock
0x50 80 01010000 Setting and Command Lock
Matrix Orbital GLK24064-25 49
