GIGA-TMS FAT820W, Manual

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20190905
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Otherwise, reply NACK . M = 34H, 35H, 36H reserve now, reply NACK also.
H. Initialize Device (Reset)
HOST to DEVICE (3 bytes)
STX @ ETX
02H 40H 03H
DEVICE to HOST (1 bytes) ACK/NACK
Host sets all settings into device as factory default. The key layout will meet the setting of viewing.
Device will reply ACK and reset all settings to factory default, if this command is
acknowledged.
Otherwise, reply NACK .
I. Blink the display
HOST to DEVICE (3 bytes)
STX F ETX
02H 46H 03H
DEVICE to HOST (1 bytes) ACK/NACK
Display will blink by this command, until the device is interrupted by next operation, like communication,
key-in, …etc.
Device will reply ACK , if this command is acknowledged. Otherwise, reply NACK .
J. Inquiry the keycode of key
HOST to DEVICE (4 bytes)
STX I
n
ETX
02H 49H Bin 03H
DEVICE to HOST (1 bytes)
KACK
Or NACK
Inquiry what is the keycode
K. Define the keycode of keys
HOST to DEVICE (5 bytes min.)
STX X m n ETX
02H 58H bin bin 03H
DEVICE to HOST (1 bytes) ACK/NACK
You can change the code of key by this command.
01H<=
m <=14H, the key position where you want to changed.
n , the ASCII of key you programmed.
Device will reply ACK , if this command is acknowledged. Otherwise, reply NACK .
L. Show text message and save it to the text message page
HOST to DEVICE (5 bytes min.)
STX Y n <DATA…> ETX