User's Manual

2.2.6 Protocol Specific Functionality and Parameter Settings

While the standard ID_read and anti-collision searches are supported by practically all offered protocols,

therefore no protocol-specific information is required to issue RQL search. More specific commands, such as

data_read and data_write require protocol specific information when formatting the query and interpreting the

results. The tables below provide that information.

2.2.6.1 915 MHz EPC Class 1/1B

Parameters /

Constraints

Return Value

(String)

Example

Read ()

Class1: 80 bits (64

bits ID and 16 bits

CRC, hex format)

Class1B: 112 bits

(96 bits ID and 16

bits CRC)

SELECT id FROM tag_id WHERE

protocol_id='EPC1';

Write

id: 64 bits

or 96 bits

(hex)

new_id or error_code

with string

UPDATE tag_id SET

id=0x1234567890ABCDEF WHERE

protocol_id='EPC1' AND

antenna_id=1;

Lock N/S

- -

Kill N/S

- -

Password N/S

- -

Note: The state of the tag becomes 'Quiet' after reading by RQL. If you wish to communicate with the tag

using a 2nd reader, a ‘Talk’ command must be sent to change the tag to active mode.(for more detailed

information about the status of the tag see 'Communication Inferface Specification' for EPC1)

V740 RFID READER/WRITER, ANTENNA 2005-07, REV.01

OPERATION MANUAL