EMS LRP2000 Series, Руководство оператора

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RFID Interface
LRP2000 Long Range Passice Reader/Writer
69
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ABxS Command 84H: Fill Tag All
DESCRIPTION
Fill all RFID tags-in-field or all tags in the same family with a one-Byte
value over multiple contiguous addresses.
DISCUSSION
This command is commonly used to clear an RFID tag's memory. It
writes a one-Byte value repetitively across a specified range of tag
addresses. All tags within range of the antenna with the specified
Family ID will be affected by this command. The fill function requires
one data value byte, a starting address, and a fill length. It will then
proceed to fill the tag with the data value byte, starting at the specified
start address for the specified number of consecutive bytes. The Fill
Length must be set to a non-zero value. The timeout value is given in
1 msec increments and can have a value of 001EH to FFFEH (65,534
ms). The controller will return a response after the timeout expires. A
response is returned when a successful operation is performed or
when the timeout has expired. When the timeout is set to 0, the
controller will return a syntax error.
Field Remarks
Command Command number in hex preceded
by AAH
Family Code Tag Family ID - 00H = all tags
Reserved Byte 00H
Start Address The tag address where the fill will
start
Fill Length The number of tag addresses to be
filled (1-48)
Timeout Timeout value given in 1 ms units
(001EH - FFFEH)
Data Value Byte The byte to be used as fill
Message Terminator FFFFH