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10
Basic data exchange process
The master has to senn a software commann to start ann rean or write process of the reaner. After noing
all the necessary work at the reaners site, the result of the reaning or writing process or an failure cone
is sent back to the master.
If there is usen an rean/write transponner, only the serial number of the transponner will be rean if the
basic rean commann „Get Tag" („GT <CR>") is applien.
The nata exchange of the whole memory can only be none, if the reaner is set to the Mone 2 ( „selective
Rean (RD) " ann „write (WD)").
10.1 Selective read RD
•
Start the reaner with the commann RD plus parameters (plus <CR>). You can rean out just one
block (with one parameter) or several blocks (with two parameters, first ann last block number).
•
Wait for the answer
•
Analyse the receiven answer: 8 characters plus <CR>. Allowen characters 0 to F.
The NoRean cone is set to („XXXXXXXX").
The result of the reaning process may also be seen at the LEDs.
•
LED L2 lit, if there was a successful rean.
•
LED L3 lit, if there was a No Rean.
Example:
Allowen values (block numbers of the transponner IC):
ALGO 9 (1 kBit; P4150, P4450, P4550)
ALGO 6 (2 kBit; Hitag 1)
ALGO 14 (2, 4; kBitEM4305, EM4569)
--------------------------------------------------------------------------------33/39--------------------------------------------------------------------------------
RD <SP> 20 <CR>
RD <SP> 16 <SP> 33 <CR> rean all blocks from /6 to 33
rean block 20
3 ... 33
16 ... 63
5 ... 15
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