Omron V720S Series, Руководство по эксплуатации

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System Command Section 5-4
5-30
5-4-11 Lock Setting (LK): I.CODE1 Mode Only
This command is used to set and check the lock (write-protection) of Tags incorporating I.CODE1
chip. A Tag can be locked (or write-protected) by memory page. To read lock information set in a
Tag, set all lock information in the commands to 0.
<Command Format>
STX Node No.. Command code
“LK”
Lock setting ETX BCC
1 2 2 4 1 1
Lock setting Set the bit corresponding to the page you want to lock to 1. *See the table
below.
<Lock setting check>
Set all lock settings to 0 to read the lock information in a Tag.
* The lock information for each page is represented by a 1-bit datum.
Lock setting
b7 b6 b5 b4 b3 b2 b1 b0 b7 b6 b5 b4 b3 b2 b1 b0
Page
10
Page
9
Page
8
Page
7
Page
6
Page
5
Page
4
Page
3
Page
2
Page
1
Page
0
A
I
,F
C
E Q
A U
S I
E
T
Write-
protect
S
N
R S
N
R
AI: Application ID FC: Family Code
<Response Format>
STX Node No.. Retry
flag
Command code
“LK”
Response
code
“00”
Lock setting Information ETX BCC
1 2 1 2 2 4 1 1
Response code 00:normal completion
For other response codes, refer to 5-2-4 Response code List.
Lock setting Infor-
mation
Indicates lock information set in a Tag.
Description: This is an example of command and response when locking pages 1, 3, 7, and 8 in a
Tag in which page 10 has already been locked. This example does not include STX,
ETX, BCC, and the node number. The lock setting in the response included informa-
tion concerning the pages that have already been locked.
Command: LK3140
Response: LK00B143
Note SNR (Tag-specific code) is locked at factory. SNR 2 bit in the lock setting in
the response is always on.
Caution Use utmost care when using the LK Command because once a page has
been locked, it cannot be unlocked. It is strongly recommended that you
use a system command to lock a page rather than using this command.
Note This command is for I.CODE1 Mode Only. The command is not available in
ISO mode.
!