User's Manual

5-7 Setting Command
5-7
5-54
5-7-5 UID/ SNR Addition Setting (SN)
This command selects whether SNR will be added to a response to a Read Command
(excluding Special Read).
<Command Format>
STX Node No. Command
code
"SN"
Additi
on
mode
ETX BCC
1 2 2 1 1 1
Specify whether SNR will be added to a response.
Setting range: 0 to 1, or *
When * is specified, the Reader/Writer reads the number that is
currently set.
Specification
number
0 1 *
Addition mode
UID(SNR)
addition mode
Disabled Enabled -
  <Response Format>
STX Node No. Retry
flag
Command
code
"SN"
Response
code:
"00"
Addit
ion
mode
ETX
BCC
1 2 1 2 2 1 1 1
Response code: 00: Normal completion
For other response codes, refer to 5-3-7 Response Code List.
addition mode Indicates the number corresponding to the specified addition mode.
  <Response when setting is invalid>
STX Node No. Retry
flag
Command
code
"RD"
Response
code:
"00"
Read data ETX
BCC
1 2 1 2 2 As specified 1 1
  <Response when setting is valid>
STX Node No. Retry
flag
Command
code
"RD"
Response
code:
"00"
UID(SNR) Read data ETX BCC
1 2 1 2 2 16 As specified 1 1
Response code: 00: Normal completion
For other response codes, refer to 5-3-7 Response Code List.
UID(SNR) Indicates the UID(SNR) read from the Tag.
Read data Indicates the data read from the Tag.
Precautions on using the command in I.CODE1 mode
・SNR is not added to the response for Fast Read Access (U□ ) even though UID/SNR addition setting is
enabled.
・The correct SNR value is not returned as a response by the Tag Designation Command even though
UID/SNR addition setting is enabled. The setting must be disabled or data in SNR area must be
ignored.
：・The setting is enabled after reset by the Reset Command(XZ). To enable the setting forthe
next start-up, the setting must be saved by Set Value Writing (EW).