Selective Access Write (Wt) - Omron V720S Series Operation Manual

Communications Command

5-3-3-3 Selective Access Write (WT)

This command writes data to the Tag of either UID (SNR) (in ISO mode) or Temporary Number (in
I.CODE1 mode).
<Command Format>
STX Node
No..
1 2
Com-
munica- In ISO
tions mode
method
In I.CODE1
mode
Data type
Tag In ISO
type mode
In I.CODE1
*
mode
First write page
No. of read pages
UID In ISO
(SNR) mode
In I.CODE1
mode
Write data
* Tag Type Setting is valid in the operating mode setting range of Reader/Writer.
<Response Format>
STX Node No..
1 2
Response code
Temporary No.
5-14
Communi- Data
Command code
cations type
"WT"
method
2 2
Specifies the communications method with a Tag.
SL: UID (SNR) select
* For details, refer to 5-8 Communications Methods
Specifies the temporary No. in hexadecimal to write to the Tags.
□□: Temporary No. (The value of □□ should be within the range of 00h
to 7Fh)
* For details, refer to 5-8 Communications Methods.
Specifies whether the read data is represented in ASCII or HEX.
A: ASCII code
H: HEX code
For details, refer to 5-9 Data type.
Specify the Tag type.
A: I.CODE2 chip
"0" fixed.
Specifies the first page in hexadecimal to write to the Tags.
Specification range: 00 to FFh
be between 00 to 1Bh)
Specification range: FB to 0Ah
user area should be between FF page and 0A page)
* For details, refer to 2-4 Memory Map of Tag.
Specifies the number of the pages in hexadecimal to write to the Tags.
Specification range: 01 to FFh
be from 01 to 1Ch)
Specification range: 01 to 0Eh
Specifies UID (SNR) in hexadecimal to write to the Tags.
Not added.
Indicates data to write to 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
Retry Response
Command code
code
flag
"WT"
"00"
1 2 2
00:normal completion
For other response codes, refer to 5-2-4 Response code List.
* ISO mode: Temporary No. is not added.
* I.CODE1 mode: Returns temporary number of "00" to "7F" in normal condi-
tions.
Tag First write First write
type page
1 1 2
Temporary ETX BCC
No.
2 1
UID(SNR)
page
2 16 As specified
In ISO mode: I.CODE2 chip should
(In I.CODE1 mode: The available
(In ISO Mode: I.CODE2 chip should
(In I.CODE1 Mode)
1
Section 5-3
Write ETX BCC
data
1 1