20
AHNET PROTOCOL
Picture Commands
COMMAND
DESCRIPTION
RESPONSE
FA XX 15 00 00
ASK FOR BACKLIGHT LEVEL
FB XX 15 00 ZZ
FA XX 16 00 00
ASK FOR CONTRAST LEVEL
FB XX 16 00 ZZ
FA XX 17 00 00
ASK FOR BRIGHTNESS LEVEL
FB XX 17 00 ZZ
XX
Number of the monitor address.
Up to 30 monitors for each RS422 BUS
ZZ
Level of the function selected (00 – 99 Dec)
COMMAND
DESCRIPTION
RESPONSE
FA XX 15 01 ZZ
SET BACKLIGHT LEVEL
FB XX 15 01 ZZ
FA XX 16 01 ZZ
SET CONTRAST LEVEL
FB XX 16 01 ZZ
FA XX 17 01 ZZ
SET BRIGHTNESS LEVEL
FB XX 17 01 ZZ
XX
Number of the monitor address.
Up to 30 monitors for each RS422 BUS
ZZ
Level of the function selected (00 – 99 Dec)
To send an order to all the monitors, you must use the address:
249 Dec. (Byte1)
F9 Hex. (Byte1)
In this case, the units do not send a reply.