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Roar Fredriksen
2017-09-14 15:03:46 +02:00
committed by GitHub
parent 7a13c872cb
commit cf63dd893f
1 changed files with 41 additions and 66 deletions
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107
Samples/HAN Sample Breakdown.md
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@@ -1,69 +1,44 @@
SAMPLE Data:
[2017-09-12 23.18.43.731 - Received 41 (0x29) bytes]
7E A0 27 01 02 01 10 5A 87 E6 E7 00 0F 40 00 00 00 09 0C 07 E1 09 0C 02
17 12 2A FF 80 00 00 02 01 06 00 00 05 28 B8 0C 7E
### SAMPLE Data:
> **[2017-09-12 23.18.43.731 - Received 41 (0x29) bytes]**
> 7E A0 27 01 02 01 10 5A 87 E6 E7 00 0F 40 00 00 00 09 0C 07 E1 09 0C 02
> 17 12 2A FF 80 00 00 02 01 06 00 00 05 28 B8 0C 7E
Breakdown:
---------
7E: Frame Start flag
A: 4 bits, A = Frame Format Type 3 (0b1010)
0
27: 11 bits, Frame size: 0x27 (39 bytes, excluding start/end flags)
01: Destination Address
(Address can be 1-4 bytes. Terminated by LSB=1)
02
01: Source Address
(Address can be 1-4 bytes. Terminated by LSB=1)
10: Control Field
5A
87: Header check sequence (HCS)
(Check sum calculated from the address bytes, according to RFC 1662)
--------
Data:
LLC PDU Format (GB, 8.3 Fig 19)
E6 Destination LSAP
E7 Source LSAP
00 LLC Quality
0F Information, n*8 bits?
(UNCERTAIN)
40 Push setup, class_id=40
00 version=0
00 00 09 0C (UNKNOWN, 2316?)
07 E1 2017 (year)
09 09 (sep)
0C 12 (date)
02 tuesday
17 23 (hour)
12 18 (min)
2A 42 (sec)
FF (fff not specified)
80 (deviation not specified)
00
00 (clock_status)
02 (UNKNOWN)
01 06 (UNCERTAIN. 0106=List1, 0D09=List2, 1209=List3)
00 (UNKNOWN)
00 (UNKNOWN)
05 28 1320 Watt
--------
B8
0C: Frame check sequence (FCS)
(Check sum calculated from full frame, excluding flags and FCS, according to RFC 1662)
7E: Frame End flag
### Breakdown:
Data | Explaination
--------|-------------
7E | Frame Start flag
A | 4 bits, A = Frame Format Type 3 (0b1010)
0 27 | 11 bits, Frame size: 0x27 (39 bytes, excluding start/end flags)
01 | Destination Address (Address can be 1-4 bytes. Terminated by LSB=1)
02 01 | Source Address (Address can be 1-4 bytes. Terminated by LSB=1)
10 | Control Field
5A 87 | Header check sequence (HCS) (Check sum calculated from the address bytes, according to RFC 1662)
**Begin Data**| LLC PDU Format (GB, 8.3 Fig 19)||
E6 | Destination LSAP
E7 | Source LSAP
00 | LLC Quality
0F | Information, n*8 bits?
40 | (UNCERTAIN) Push setup, class_id=40
00 | (UNCERTAIN) version=0
00 00 09 0C | (UNKNOWN, 2316?)
07 E1 | 2017 (year)
09 | 09 (sep)
0C | 12 (date)
02 | tuesday
17 | 23 (hour)
12 | 18 (min)
2A | 42 (sec)
FF | (fff not specified)
80 | (deviation not specified)
00 00 | (clock_status)
02 | (UNKNOWN)
01 06 | (UNCERTAIN. 0106=List1, 0D09=List2, 1209=List3)
00 | (UNKNOWN)
00 | (UNKNOWN)
05 28 | 1320 Watt
**End Data**|
B8 0C | Frame check sequence (FCS) (Check sum calculated from full frame, excluding flags and FCS, according to RFC 1662)
7E | Frame End flag