EUCHNER Electronic-Key Adapter with serial Interface - Manual (Page 20)

Manual EKS Electronic-Key Adapter serial
088796-02-03/05 Subject to technical modifications Page 20/24
Contents
Byte no. Description
ASCII hexadecimal decimal
0 Number of message bytes 08 ... 7B 8 ... 123
1
2
Command identification
R
L
52
4C
82
76
3 Device address 01 1
4
5
Start address for the user data
00
00 ... 73
0
0 ... 115
6 Number of bytes of user data 01 ... 74 1 ... 116
7 ... 122 User data ASCII or hexadecimal or BCD (code transparent)
Figure 5: Reply message read Electronic-Key read/write (message core)
Contents
Byte no. Description
ASCII hexadecimal decimal
0 Number of message bytes 07 7
1
2
Command identification
R
F
52
46 82
70
3 Device address 01 1
4
5
Padding data
00
00 0
0
6 Status number *
Figure 6: Reply message read Electronic-Key read/write - status (message core)
* Status number 02
hex
: Electronic-Key not in the operating distance
(For further status numbers see chapter 8.7)
8.4.3 Reading the serial number
The Electronic-Key read/write contains a unique 8-byte serial number. This number is written by laser during the
Electronic-Key production process and can never be changed or deleted. The serial number is used for reliable
identification of each individual Electronic-Key. It is necessary that all 8 bytes are completely evaluated for
reliable differentiation. The serial number is appended to the freely programmable user data.
The serial number can be read using the command TL (see section 8.4.2 Read process) using the start address
byte no. 116 and 8 as the number of bytes.