User manual

Matrix Switching System—User Manual
58
Device ACK Type
Table – ACK Type List
Ack Type
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
…
Last Byte
Type A
AB
CB
Type B
AB
LB
Index 1
Value 1
Index 2
Value 2
…
CB
Type C
AB
LB
Data 1
Data 2
CB
Type D
AB
LB
INF
OP
IP
Name 1
…
CB
Type E
AB
LB
EXINF
VEINF
AEINF
PLUG
…
CB
ACK Type A
ACK Byte + CRC Byte (Total 2 Bytes)
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
AB
ACC
0
0
Device ID (0 – 31)
CB
CRC
ACC: The devices acknowledge status. Accept or Reject.
1: device accepts this request. (ACK; acknowledge)
0: device rejects this request. (NAK; negative acknowledge)
 The device sends the Nak packet. This is always 2 bytes. (NAK + CRC)
0: Reserve, Always 0.
1: Identifier, Always 1.
Device ID: Device id ranges from 0 to 31. (Please refer to device‟s user manual)
CRC: Device always sends the CRC code to follow the last byte.