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115 LRP2000 Passive Reader/Writer
Example
This example locks blocks 0-2 on all tags-in-field with the family code of 02H. Two tags are found and
locked.
6.5.19 ABxF Command 8BH: Write Family Code All
DESCRIPTION
Command 8BH can be used to write the family code of all tags in the field. It can also be used to selectively
rewrite the family codes of tags with family codes already set to a particular value.
Command from Host Response from Controller
Field Content Field Content
Header 0202H Header 0202H
Command Size 0007H Response Size 0003H
Command Code 91H Command Echo 91H
Family ID 02H Number of Tags 02H
Reserved 00H Status Byte 08H
Timeout 07D0H Checksum 64H
First block 00H Terminator 03H
Number of blocks 03H
Checksum 91H
Terminator 03H
Field Content
Header 0202H
Command Size Command length in bytes excluding the header, command size, checksum, and terminator bytes.
06H for this command.
Command 8BH
Current Family Code Tag Family ID - 00H = all tags used to select which tags are addressed
Reserved Ignored byte, set to 00H
Timeout Timeout value given in 1 ms units
New Family Code Value that is written to the family codes of all the addressed tags
Checksum Optional checksum
Message Terminator 03H