Balluff BIS M-370-000-A02, Manual, Page: 158 / 198

PROFIBUS INTERFACE
151
9
And lastly, the Master acknowledges receipt of the final fragment by toggling Bit 0 of its
OBCB & OBDCB :
(See the
Green changes below)
Output Buffer Input Buffer
Byte # Value Byte # Value
00:
83
Output Buffer Control Byte
(OBCB)
7 6 5 4 3 2 1 0
[1] [0] [0] [0] [0] [0] [1]
[1]
00
83 Input Buffer Control Byte
(IBCB)
7 6 5 4 3 2 1 0
[1] [0] [0] [0] [0] [0] [1] [1]
01: 00 (Always 0) 01: 00 (Always 0)
02: 0C (Packet length in bytes) 02: 06 (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
05
00
01
03
E8
00
00
00
32
00
00
00
00
00
00
..
00 (CBx Command word length MSB)
(CBx Command word length LSB)
Minimum of 6 words
(CBx Command Type) Always AA
(CBx Command Opcode)
0x05 = Read Tag Data
(CBx Command, byte not used)
(CBx Command “Node ID”)
(CBx Command Timeout MSB)
(CBx Command Timeout LSB)
0xE8 = 1000 ms timeout
(CBx Command Start Address MSB)
(CBx Command Start Address LSB)
address 0
(CBx Command Length MSB)
(CBx Command Length LSB)
50 bytes 03:
04:
05:
06:
07:
08:
09:
10:
11:
12:
13:
14:
15:
16:
17:
18:
19:
20:
21:
22:
23:
24:
25:
26:
27:
28:
29:
30: 02
02
02
02
02
02
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00 (CBx Response Data Byte 45)
(CBx Response Data Byte 46)
(CBx Response Data Byte 47)
(CBx Response Data Byte 48)
(CBx Response Data Byte 49)
(CBx Response Data Byte 50)
31: 83 Data Consistency Byte (OBDCB) 31: 83 Data Consistency Byte (IBDCB)
The command/response sequence has completed. A command has been issued and the
response received and all fragments of a response have been retrieved and acknowledged.