Omron V720S Series, Руководство по эксплуатации

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System Command Section 5-4
5-24
5-4-4 SNR (Tag-specified Code) Read (RD): 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”
Communica-
tions method Data
type
Tag
No.
setting
Fixed value
“
∗∗
”
Fixed value
“
∗∗
”
ETX BCC
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
For details, refer to 5-8 Communica-
tions Methods.
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)
Set the number of Tags which communicate simultaneously.
* For details, refer to 5-10 Tag No. setting.
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)
TX
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 5-2-4 Response code List.
Serial No. Indicates serial number written to a Tag in advance. You cannot rewrite the
number.
Note This command is for I.CODE1 Mode Only. The command is not available in
ISO mode: