ARTHUR HOLM AHDTL, User Manual

Page: 16 / 24

16
AHNET PROTOCOL
AHnet protocol
Using 5 bytes communication:
BYTE 0 START BYTE
BYTE 1 ADDRESS BYTE
BYTE 2
COMMAND BYTE
BYTE 3 VALUE 1
BYTE 4 VALUE 2
AHnet 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 MUTE ON (Only on PA mode) FB XX 02 01 00
FA XX 02 00 00 MUTE OFF (Only on PA mode) FB XX 02 00 00
FA XX 04 00 00 BUTTON LOCKED FB XX 04 00 00
FA XX 04 01 00 BUTTON UNLOCKED FB XX 04 01 00
FA XX 14 00 00 INQUIRY CONTROL BYTE FB XX 14 CB1 CB2
XX Number of the DynamicTalk address.
Up to 30 units for each RS422 BUS
CB1 Response in 8 bits of the device status
CB2 Not implemented