User's Manual

5-4 Communication Commands
5-4
5-32
5-4-4 Read (RD)-UID Select/Specified Tag
In ISO mode, this command reads data from the Tag in communications area by specifying UID (SNR).
In I.CODE1 mode, this command reads data from the Tag which is specified by the Temporary
Number.
<Command Format>
STX Node No.
Command code
“RD”
Communic
ations
method
Data
type
Tag
type
First read
page
No. of read
pages
ETX BCCUID(SNR)
1 2 2 2 1 1 2 2 16 1 1
In ISO
mode
Specifies the communications method with a Tag.
SL: UID (SNR) select
* For details, refer to 5-3-4 Communications Methods
Commun
ications
method
In I.CODE
mode
Specifies the temporary No. in hexadecimal to read from the Tags.
□□: Temporary No. (The value of □□ should be within the range of
00h to 7Fh)
* For details, refer to 5-3-4 Communications Methods.
Data type Specifies whether the read data is represented in ASCII or HEX.
A: ASCII code
H: HEX code
For details, refer to 5-3-6 Data type.
In ISO
mode
Specify the Tag type.
A: I.CODE SLI chip
Tag
type
*
In I.CODE1
mode
“0” fixed.
First read page Specifies the first page in hexadecimal to read from the Tags.
Specification range: 00 to FFh (In ISO Mode: I.CODE SLI chip
should be from 00 to 1Bh)
Specification range: FB to 0Ah (In I.CODE1 Mode)
* For details, refer to 2-4 Memory Map of Tag.
No. of read pages Specifies the number of the pages in hexadecimal to read from the
Tags.
Specification range: 01 to FFh (In ISO Mode: I.CODE SLI chip
should be 01 to 1Ch)
Specification range: 01 to 10h (In I.CODE1 Mode)
In ISO
Mode
Specifies UID (SNR) in hexadecimal to read from the Tags.
UID
(SNR)
In I.CODE1
mode
Not added.
* Tag Type Setting is valid in the operating mode setting range of Reader/Writer.
<Response Format>
STX Node No..
Retry
flag
Command
code
“RD”
Response
code
“00”
Temporary
No.
UID(SNR) Read data ETX BCC
1 2 1 2 2 2 16 As specified 1 1
Response code 00: normal completion
For other response codes, refer to 5-3-7 Response code List.
Temporary number
(I.CODE1 Mode
only)
Returns the Temporary numbers from 00 to 7F in the normal state.
UID/SNR
(ISO Mode only)*
UID/SNR is added at the top of read data when UID/SNR addition setting is
enabled.
Read data Indicates data having read from the Tag. The number of characters of
the data is as follows.
ASCII Code: No. of write pages x 4
HEX code: No. of write pages x 8
* UID/SNR is not added in I.CODE1 Mode regardless of the UID/SNR addition setting status.