PROFIBUS INTERFACE
57
5
The Master now toggles
Bit 0
of the
OBCB
&
OBDCB
to acknowledge that it has received
the response.
(See the
Green
changes below)
Output Buffer
Input Buffer
Byte # Value
Byte # Value
00:
80
Output Buffer Control Byte
(OBCB)
7 6 5 4 3 2 1 0
[1] [0] [0] [0] [0] [0] [0]
[0]
00
80
Input Buffer Control Byte
(IBCB)
7 6 5 4 3 2 1 0
[1] [0] [0] [0] [0] [0] [0] [0]
01:
00
(Always 0)
01:
00
(Always 0)
02:
0C
(Packet length in bytes)
02:
14
(Packet length in bytes)
03:
04:
05:
06:
07:
08:
09:
10:
11:
12:
13:
14:
15:
16:
17:
18:
19:
20:
..
30:
00
06
AA
07
00
01
03
E8
00
00
00
00
00
00
00
00
00
00
..
00
(CBx Command word length MSB)
(CBx Command word length LSB)
(CBx Command Type)
(CBx Command Opcode)
(CBx Command, byte not used)
(CBx Command “Node ID”)
(CBx Command Timeout MSB)
(CBx Command Timeout LSB)
(CBx Command Not Used)
(CBx Command Not Used)
(CBx Command Not Used)
(CBx Command Not Used)
03:
04:
05:
06:
07:
08:
09:
10:
11:
12:
13:
14:
15:
16:
17:
18:
19:
20:
21:
22:
..
30:
00
0A
AA
07
01
01
01
01
01
17
58
08
E0
04
01
00
0E
20
DD
AF
..
00
(CBx Response word length MSB)
(CBx Response word length LSB)
Minimum of 6 words
(CBx Response Type)
AA=Normal Response
(CBx Response Opcode)
07=Command Echo of Tag Read ID
(CBx Response Instance Counter)
(CBx Response “Node ID”)
(CBx Response Timestamp Month)
(CBx Response Timestamp Day)
(CBx Response Timestamp Hour)
(CBx Response Timestamp Minute)
(CBx Response Timestamp Second)
(CBx Response “Data length”)
8 bytes (the Tag ID)
(CBx Response Data Byte 1)
Tag ID Byte 1
(CBx Response Data Byte 2)
Tag ID Byte 2
(CBx Response Data Byte 3)
Tag ID Byte 3
(CBx Response Data Byte 4)
Tag ID Byte 4
(CBx Response Data Byte 5)
Tag ID Byte 5
(CBx Response Data Byte 6)
Tag ID Byte 6
(CBx Response Data Byte 7)
Tag ID Byte 7
(CBx Response Data Byte 8)
Tag ID Byte 8
31:
80
Data Consistency Byte (OBDCB)
31: 80
Data Consistency Byte (IBDCB)
The command/response sequence has completed. A command has been issued and the
response received (in this case, a successful read of the RFID Tag ID) and the response has
been acknowledged.
Содержание GWY-01-PBS-01
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