Short description HFU 4500D
Leuze
electronic
Page 12
Telegram- / Command structure
The factory presets are similar to the other available fix mounted RFID- devices from Leuze electronic. The
Standard telegram structure is shown below, with 9600Bd, 8 Databits , N,1 :
STX
Command
CR LF
02h
ASCII-Character 0Dh 0Ah
For this device you can change the telegram frame and the Baudrate.
With the following commands via the serial interface (within the upper shown frame) the functions selection or
other operations can be set and with activated messages (systems menu) you receive responses:
?
State check, gives back a Ready sign ( S) followed by the selected function (e.g. SFC1)
FC(1-5) Function change with response (FC3-OK), function active through User (Triggerbutton)
(device ready for use after pressing trigger!)
FC(1-5)x Function change with response (FC2x-OK) directly without activation through user
(device ready at once after response)
BP(1/2)
Activation of device beeper with high / low Beep
MDTEXT Text on display for process control
W0100020002000000xxxxxxxx Datapreset for writing onto
Transponder, block wise, look on settings
With 01 = Bank for Access (Writing)
0002 = Block starting with for Writing,
0002 = No of bytes to write (2-20 possible)
000000 = Tag Type universal (Tag Type prefix, adjustable)
(xxxxxxxx = Data (complete Block)
For writing always a complete Block is 4 characters (hex) at 2 Byte/Block. The response on W-command
after a trigger is 'Q5' on the interface and Message on Display “Write successful“
Depending on setting the writing is done in EPC-area (bank 01) or User area (bank03) .
For reading / writing of memory banks on the Transponder always the byte counting start on 00
and is transmitted in the telegram (Full).
