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Communications Commands and Responses
Section 5-3
5-8
2)
Write (WT)
Command for the use of writing data to an ID Tag entering the Antenna area in entering order.
Read verification processing is performed for this command and so it is not necessary to perform it
again.
Command Frame Structure
STX
Node No.
Command
code
“WT”
Commu-
nications
Data
type
Fixed
“0”
First write
page
No. of
write
pages
Write
data
ETX BCC
1
2
2
2
1
1
2
2
Specified number
1
1
Communications
Specifies a communications method.
FT: FIFO Trigger
FA: FIFO Auto
FR: FIFO Repeat
For details, refer to 5-5 Communications Methods.
Data type
Specifies whether the write data is represented in ASCII or HEX.
A: ASCII code
H: HEX code
For details, refer to 5-6 Data Type.
First write page
Specifies the first page of the Tag to which data is written in HEX.
Setting range: 00h to 0Ah, FFh
(FFh can be specified only when using Philips’ block 4 as user memory. For details,
refer to 2-5 Tag Memory Map.)
No. of write pages
Specifies the number of pages to which data is written in HEX.
Setting range: 01h to 0Ch
Write data
Indicates data to be written 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
Response Frame Structure
STX
Node No.
Retry
flag
Command
code
“WT”
Response
code
“00”
ETX BCC
1
2
1
2
2
1
1
Response code
00: Normal completion
For other response codes, refer to 5-10 Response Code List.
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