mirror of
https://github.com/UtilitechAS/amsreader-firmware.git
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45 lines
1.3 KiB
Markdown
45 lines
1.3 KiB
Markdown
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### SAMPLE Data:
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> **[2017-09-12 23.18.43.731 - Received 41 (0x29) bytes]**
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> 7E A0 27 01 02 01 10 5A 87 E6 E7 00 0F 40 00 00 00 09 0C 07 E1 09 0C 02
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> 17 12 2A FF 80 00 00 02 01 06 00 00 05 28 B8 0C 7E
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### Breakdown:
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Data | Explaination
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--------|-------------
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7E | Frame Start flag
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A | 4 bits, A = Frame Format Type 3 (0b1010)
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0 27 | 11 bits, Frame size: 0x27 (39 bytes, excluding start/end flags)
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01 | Destination Address (Address can be 1-4 bytes. Terminated by LSB=1)
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02 01 | Source Address (Address can be 1-4 bytes. Terminated by LSB=1)
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10 | Control Field
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5A 87 | Header check sequence (HCS) (Check sum calculated from the address bytes, according to RFC 1662)
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**Begin Data**| LLC PDU Format (GB, 8.3 Fig 19)||
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E6 | Destination LSAP
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E7 | Source LSAP
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00 | LLC Quality
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0F | Information, n*8 bits?
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40 | (UNCERTAIN) Push setup, class_id=40
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00 | (UNCERTAIN) version=0
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00 00 09 0C | (UNKNOWN, 2316?)
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07 E1 | 2017 (year)
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09 | 09 (sep)
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0C | 12 (date)
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02 | tuesday
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17 | 23 (hour)
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12 | 18 (min)
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2A | 42 (sec)
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FF | (fff not specified)
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80 | (deviation not specified)
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00 00 | (clock_status)
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02 | (UNKNOWN)
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01 06 | (UNCERTAIN. 0106=List1, 0D09=List2, 1209=List3)
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00 | (UNKNOWN)
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00 | (UNKNOWN)
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05 28 | 1320 Watt
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**End Data**|
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B8 0C | Frame check sequence (FCS) (Check sum calculated from full frame, excluding flags and FCS, according to RFC 1662)
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7E | Frame End flag
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