Communications Command
Section 5-3
5-10
(2) Completion of communications (Multi/Trigger only): When the communications with all tags in
communications area is completed.
STX Node
No.
Retry
Flag
Command
Code
“RD”
Response
Code
“72”
ETX BCC
1 2 1 2
2 1
1
Response code
00: Normal completion
For other response codes, refer to 5-2-4 Response Code List.
UID (SNR)
Indicates UID (SNR) having been read from a Tag.
When UID (SNR) (Tag-specific code) additional setting (refer to 5-6-5 SN
Command) is valid, read data will be preceded by UID. UID(SNR)
Read Data
Indicates the data having been read from a Tag. The number of characters
of data is as follows.
ASCII code: No. of read pages x 4
HEX code: No. of read pages x 8
Points
For write command, only UID (SNR) (Tag-specified code) additional set-
ting (refer to 5-6-5 SN Command) is valid when it is in ISO mode.
5-3-2 Write (WT)
This command writes data to a Tag in the communications area.
There is no need to perform the verify read process, since this command performs it as part of its
execution.
<Command Format>
STX
Node No.
Command code
“WT”
Communi-
cations
method
Data
type
Tag
type
First write
page
No. of write
pages
Write
data
ETX
BCC
1 2
2
2 1
1 2
2 As
specified
1
1
Communications
method
Specifies the communications method with a Tag.
ST: Single Trigger
FR: FIFO Repeat
SA: Single Auto
MT: Multi Trigger
FT: FIFO Trigger
MR: Multi Repeat
FA: FIFO Auto
* For details, refer to 5-8 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 5-9 Data Type
Tag
type In ISO mode
Specifies the Tag type.
A: I.CODE2 chip
*
In I.CODE1
mode
(Tag No. set-
ting)
Set the value with accordance with the number of Tags communicating
simultaneously.
0
: when performing Single or FIFO communications method
“1 to 7” : when performing multi communications method
* For details, refer to 5-10 Tag No. setting.
First write page
Specifies the first page in hexadecimal to write to the Tags.
Specification range: 00 to FFh
(in ISO mode: 00 to 1Bh for I.CODE2
chip)
Specification range: FD to 0Ah (in I.CODE1 mode: the range of the
writable user area is FF page to 0A page)
* For details, refer to 2-4 Memory Map of Tag.
No. of write pages
Specifies the number of pages to which data is written to Tags in hexa-
decimal.
Specification range: 01 to FFh
(in ISO mode: 01 to 1Ch for I.CODE2)
Specification range: 01 to 0Eh
(in I.CODE1 mode)
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
* Setting values of each Tag type is valid in the operating mode setting range in Reader/Writer.
