User's Manual

5-5 System Command
5-5
5-43
5-5-4 Read (RD)-SNR Read: I.CODE1 Mode only
This command read SNR (Tag-specified code) which incorporates I.CODE1 chip. Refer to 2-4 of Section 2
Memory Map of Tag.
<Command Format>
STX Node No.. Command code
“RD”
Communications
method
Data
type
Tag
No.
setting
Fixed
value
“∗∗”
Fixed
value
“((”
ETX BC
C
1 2 2 2 1 1 2 2 1 1
Communications
method
Specifies the communications
method with a Tag.
ST: Single Trigger
SA: Single Auto
SR: Single Repeat
FT: FIFO Trigger
FR: FIFO Repeat
MT: Multi-trigger
MR: Multi-repeat
LT: Selective Access (Tag detection)
□□: Selective Access (Read)
(For □□, the values from 00h to 7Fh
are available.)
UT: Special Read Trigger
UA:: Special Read Auto
UR: Special Read Repeat
Refer to SECTION 5-3-4
Communication Mode List for details.
Data type “H” fixed (HEX code)
For Single/FIFO/Selective Access (Read)
Set the number of Tags “0.”
Tag No. setting
For Multi/Selective Access (Tag detection command)
Reads SNR (unique code of the Tag) on the Tags with an I.CODE1 Chip.
Refer to SECTION 5-2-5, Specifying a Tag Code.
Specification range: 1 to 7
<Response Format>
(1) For Single/FIFO/Multi (except for the response of the completion of communications)
STX Node No..
Retry
flag
Command code
“RD”
Response
code
“00”
Serial
No.
ETX BCC
1 2 1 2 2 16 1 1
(2) For Selective Access (except for the response of the completion of Tag detection)
STX Node No..
Retry
flag
Command code
“RD”
Response
code
“00”
Temporary
No.
Serial
No.
ETX
BCC
1 2 1 2 2 2 16 1 1
Response code 00:normal completion
For other Response Codes, refer to SECTION 5-3-7 Response Code List.
Serial No. Indicates serial number written to a Tag in advance. You cannot rewrite
the number.
：This command is for I.CODE1 Mode Only. The command is not available in ISO mode: