ARTHUR HOLM AH15DCDHD, User Manual

Page: 20 / 30

20
AHnet PROTOCOL
AHnet protocol
Uses 5 bytes communication:
BYTE 0 START BYTE
BYTE 1 ADDRESS BYTE
BYTE 2
COMMAND BYTE
BYTE 3 VALUE 1
BYTE 4 VALUE 2
Commands
COMMAND DESCRIPTION RESPONSE
FA XX 01 01 00 GO UP FB XX 01 01 00
FA XX 01 00 00 GO DOWN FB XX 01 00 00
FA XX 02 01 00 SCREEN ON FB XX 02 01 00
FA XX 02 00 00 SCREEN OFF FB XX 02 00 00
FA XX 03 01 00 DVI-A SELECTION FB XX 03 01 00
FA XX 03 00 00 DVI-1 SELECTION FB XX 03 00 00
FA XX 03 03 00 DVI-2 SELECTION FB XX 03 03 00
FA XX 04 01 00 BUTTON LOCK FB XX 04 01 00
FA XX 04 00 00 BUTTON UNLOCK FB XX 04 00 00
FA XX 13 00 00 MECHANICAL PROTECTION RESET FB XX 13 00 00
FA XX 14 00 00 INQUIRY CONTROL BYTE FB XX 14 CB1 CB2
XX Number of the monitor address. Up to 30 monitors for each
RS422 BUS
CB1 Response in 8 bites of the monitor status
CB2 Response in 8 bites of the monitor status