Datalogic GWY-01-PBS-01, Справочное руководство

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PROFIBUS INTERFACE
51
5
(See the Green changes below)
Output Buffer Input Buffer
Byte # Value Byte # Value
00:
82 Output Buffer Control Byte
(OBCB)
7 6 5 4 3 2 1 0
[1] [0] [0] [0] [0] [0] [1] [0]
00
82
Input Buffer Control Byte
(IBCB)
7 6 5 4 3 2 1 0
[1] [0] [0] [0] [0] [0] [1] [0]
01: 00 (Always 0) 01: 00
02: 0C (Packet length in bytes) 02: 00
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:
..
30: 00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
..
00
31: 82
Data Consistency Byte (OBDCB)
31:
82 Data Consistency Byte (IBDCB)
The Slave writes the response into the
Input Buffe r, and toggles Bit 0 of the IBCB to
indicate that there is a response fragment ready for the master. Since the entire response fits
in the buffer, it does not need to use fragmentation. The Slave also simultaneously makes
the same changes to the
IBDCB .