Datalogic GWY-01-PBS-01, Reference Manual

Page: 89 / 101

PROFIBUS INTERFACE
81
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:
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
02: 06 (Packet length in bytes) 02: 0C (Packet length in 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: 85
86
87
88
89
90
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00 (CBx Command Data Byte 45)
(CBx Command Data Byte 46)
(CBx Command Data Byte 47)
(CBx Command Data Byte 48)
(CBx Command Data Byte 49)
(CBx Command Data Byte 50)
03:
04:
05:
06:
07:
08:
09:
10:
11:
12:
13:
14:
15:
16:
17:
18:
19:
20:
..
30: 00
06
AA
06
01
01
01
01
00
01
20
00
00
00
00
00
00
00
..
00 (CBx Response word length MSB)
(CBx Response word length LSB)
Minimum of 6 words
(CBx Response Type)
AA=Normal Response
(CBx Response Opcode)
06=echo of "Tag Write"
(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 Not Used)
31: 83 Data Consistency Byte (OBDCB) 31: 83 Data Consistency Byte (IBDCB)
The command/response sequence has completed. A command has been issued over 3
fragments and processed, and the response received and the response has been
acknowledged.