Baumer N 141 - Manual (Page 19)

N 141
www.baumer.com 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 <──────┘