OBID
®
System-Manual
ID RW40.30-USB
FEIG ELECTRONIC GmbH
Page 42 of 57
H80701-2e-ID-B.doc
4.3. Data block public "D" (not ID CTx.A)
The uncoded memory “D” of the transponder is organized by individually addressable data blocks with
4 bytes each. Within one read-/write process max. 4 data blocks (16 bytes) can be transmitted. The
data area begins with address 0. The top address can be drawn from the data sheet of the individual
transponder.
After writing the data on the transponder, the reader checks whether the entire data was written failure
free. Further data reliability and reasonable tests are to be carried out by the user.
4.3.1. [0x14] Write Data block / -blocks "D"
Host
→
Reader:
1
2
3
4
5...8, 12, 16, 20
9, 13, 17, 21
9, 13, 17, 21
COM-Adr
0x14
DB-AD
DB: 1...4 à 4 byte
CSUM
Host
←
Reader
1
2
3
4
5
5
COM-Adr
0x14
STATUS
CSUM
DB-AD
2
:
Starting address "D" from which on the data following in DB can be written onto the transponder.
DB:
data of any contents that can be written onto transponder from the address DB-A on. DB has got a
max. length of 4, 8, 12, or 16 byte.
4.3.2. [0x15] Read Data block / -blocks "D"
Host
→
Reader:
1
2
3
4
5
6
6
COM-Adr
0x15
DB-AD
DB-N
CSUM
Host
←
Reader
1
2
3
4
5...8, 12, 16, 20
9, 13, 17, 21
9, 13, 17, 21
COM-Adr
0x15
STATUS
DB: 1...4 à 4 byte
CSUM
DB-AD
3
:
Starting address "D" from which on the data "DB" should be read from the transponder.
DB-N: (0...4)
This parameter defines the number of data bocks that are read from the transponder from the
address DB-A on.
2
With transponder ID DTx.B, the ID-No can be written as public data via the address D96 - D99.
3
With transponder ID DTx.B, the ID-No can be written as public data via the address D96 - D99..
