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Communications Commands and Responses
Write (WT)
2)
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
1
2
Communications
Data type
First write page
No. of write pages
Write data
Response Frame Structure
STX Node No.
1
2
Response code
5-8
Commu-
code
nications
"WT"
2
2
Specifies a communications method.
FT: FIFO Trigger
FA: FIFO Auto
FR: FIFO Repeat
For details, refer to 5-5 Communications Methods.
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.
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.)
Specifies the number of pages to which data is written in HEX.
Setting range: 01h to 0Ch
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
Retry
Command
Response
flag
code
code
"WT"
"00"
1
2
2
00: Normal completion
For other response codes, refer to 5-10 Response Code List.
Data
Fixed
First write
type
page
"0"
1
1
2
ETX BCC
1
1
Section 5-3
No. of
Write
write
data
pages
2
Specified number
ETX BCC
1
1
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