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15
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 08 01 00
GO UP
FB XX 08 01 00
FA XX 08 00 00
GO DOWN
FB XX 08 00 00
FA XX 08 05 00
BUTTON LOCK
FB XX 08 05 00
FA XX 08 04 00
BUTTON UNLOCK
FB XX 08 04 00
FA XX 14 00 00
INQUIRY CONTROL BYTE
FB XX 14 CB1 CB2
XX
Number of the device address. Up to 30 units for each RS422
BUS
CB1
Response in 8 bites of the device status
CB2
Not implemented