ARTHUR HOLM AH12D216A, User Manual

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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.