Datalogic GWY-01-PBS-01, Справочное руководство

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PROFIBUS INTERFACE
61
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: 00 (Packet length in bytes) 02: 12 (Packet length in bytes)
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 03:
04:
05:
06:
07:
08:
09:
10:
11:
12:
13:
14:
15:
16:
17:
18:
19:
20:
..
30:
00
09
AA
0D
02
01
01
01
02
13
34
06
77
88
99
AA
BB
CC
..
00 (CBx Response word length MSB)
(CBx Response word length LSB)
Minimum of 6 words
(CBx Response Type)
AA=Normal Response
(CBx Response Opcode)
0D=Continuous Read Response
(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”)
6 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
31: 80 Data Consistency Byte (OBDCB) 31: 80 Data Consistency Byte (IBDCB)
No new responses will come from the reader until the Master has acknowledged the previous
response by toggling
Bit 0 of the OBCB & OBDCB .