N 141, Example: serial number for june 1 – Baumer N 141 User Manual
Page 19

N 141
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19
Example 3: Read serial number
SOH
Adr
Cmd
Data
EOT
CRC
Transmission
01h
20h
58h
53h
04h
D2h
SOH
Adr
Cmd Data
Serial number code = 15830EA4
EOT
CRC
Response
01h
20h
58h
53h
31h
35h
38h
33h
30h
3Eh
3Ah
34h
04h
63h
Code configuration of the transmitted serial number:
The Low-Nibble (lower 4 bits of a byte) of the 8 data bits received equal together a 4 byte value comprising the
serial number.
The serial number is composed by date and time of production. Due to also the seconds being coded and by
assigning only one number per second the serial number is unique.
Example: Serial number for June 1
st
, 2005 / 01.06.2005 16:58:36 = 15 83 0E A4 hex
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X Bit position
J J J J J J M M M M T T T T T h h h h h m m m m m m s s s s s s contents
0 0 0 1 0 1 0 1 1 0 0 0 0 0 1 1 0 0 0 0 1 1 1 0 1 0 1 0 0 1 0 0 ex.= 15 83 0E A4 hex
─────┬───── ────┬──── ────┬──── ─────┬───── ──────┬────── ─────┬─────
│ │ │ │ │ └─────── sec. 0
0100 = 24h= 36d
│ │ │ │ └──────────────────── min.11
1010 = 3Ah= 58d
│ │ │ └───────────────────────────────── hours 1
0000 = 10h= 6d
│ │ └──────────────────────────────────────────── day 0
0001 = 01h= 01d
│ └────────────────────────────────────────────────────── month
0110 = 06h= 06d
└───────────────────────────────────────────────────────────────── year 00
0101= 05h= 05d
│
01.06.05 16:58:36 <──────┘