User's Manual Part 1

13,56 MHz Multitag Reader Module, Version 0.9v
ACG Identification Technologies AT Page 27
5.3.7 Select
This command selects a single card in the antenna field. It can only be used in single
tag mode. In case of success the command returns the UID of the selected card.
5.3.7.1 Command
Command Data
‘s’ none
5.3.7.2 Answer
Answer Description
data Leading character (1 byte) + serial number
‘N’ Error: No Tag in the field
5.3.7.3 Select a single tag
No previous continuous read is required.
5.3.7.4 Extended ID (default)
If set Tagit® and ISO14443 Type B cards return additional information. See above for
more information of the Extended ID.
5.3.7.5 Multiple tags
This command is designed for fast access to a single tag in the field. If multiple cards
are used in the field the ‘m’ instruction for the select procedure has to be used.
5.3.7.6 Example
s E000112233445566
Select the card of type ISO15693 with the UID
E000112233445566