User's Manual

Product Manual - RFID Reader LF60C SoliD 47
Chapter 7
Operation
X - Read data Command X starts the reading of a transponder.
If there is no tag in the reading range of the antenna, the reader returns an error
message (error 4 - no tag).
Data item "Page" can have the following values.
1)
'E' respectively 'F' in ID Bit 0...3 of the reading ID
If there is no tag in the reading range of the antenna, the reader repeats the
reading before an error message is sent out. The number of repeats is defined in
parameter 4 (r/w maxrepeat).
No acknowledgement is expected from the host.
In case of a read request for more than one page (value 98 or 99), the protocol is
repeated. For the end of reading the reader sends an additional package. The
message includes the command 'x' and the source address '0'...'E'.
If the reading fails, the reading is repeated (parameter 3: r/w delay time;
parameter 4: r/w maxrepeat). If it fails again, the reader sends an error message
'no tag(4)' to the host.
If the sensor check is activated, the circuit status of the floating contact
connected to the external input is checked before a read process is triggered by
the host. If it is not connected, the error message "NOTAG" is sent; otherwise the
read process is started.
Value Description
'01' to '17’ read page#
’98’
read more pages until end character or empty character
1)
’99’ read entire tag data
Host  Reader
CMD Reader ID Page
X 1 byte 2 bytes
Reader  Host
CMD Reader ID Page Data
x 1 byte 2 bytes 16 bytes