User Manual Part 2

RFID Interface
LRP2000 Long Range Passice Reader/Writer
131
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ABxF Command 88H: Tag Search All
DESCRIPTION
Searches for tags within range of the antenna.
DISCUSSION
This command will activate the controller to "look" for tags within
range of the antenna. As soon as the controller finds a tag it will return
a command echo to the host. The timeout value is given in 1 msec
increments and can have a value of 1EH to FFFEH (65,534 ms). If no
tag is present it will return an error message. See Section 6.6 for
information on the error messages.
Field Content
Header 0202H
Command Size Packet length in Bytes excluding the header, command
size, checksum and terminator Bytes. 0005H for this
command
Command 88H
Family ID Tag Family ID - 00H = all tags
Reserved Ignored, set to 00H
Timeout 2-Byte value for the time in 1 ms units (1EH - FFFEH)
Checksum Optional Checksum
Terminator <ETX>