Tag Designation Read - Omron V690 Series User Manual

5-7-3 Tag Designation Read

Reads data from a particular ID tag.
<Command Format> * A figure below shows the number of characters.
Command Communi-
code cation des-
ignation
DA
SA
Command code
Communication
designation
ID code
Split flag
Code designation
Start address
Number of read bytes
Start address, number of read bytes
Read content
Data
Write Protect setting
Date of production
Waiting time for sleep
Split flag
ID code
Destination (antenna) station number. "00" to "31". This can
be modified in "5-9-8 Station Number Setting".
Source (host device) station number. "80" to "89". If only one host device is used, specify "80".
R3: Single Trigger
Gives communication designation to a tag.
SN: A tag will be in a sleep state after execution.
WN: A tag will be in a standby state after execution.
Specify an ID code of a particular tag.
Specify "A".
Specify whether data read out of a tag is ASCII code or hexadecimal code.
A: ASCII code
H: Hexadecimal code
Specify according to the table below.
Start address
Reading start address Specify the number of read bytes
("0000" to "1FFF")
* Hexadecimal number
"WPRO"
"DATE"
"SLEP"
Code designation
Start address Number of
read bytes
Number of read bytes
ASCII code
("0001" to "2000")
* Hexadecimal number
Unavailable
"0008" * Refer to Section 2-2-3.
"0004" * Refer to Section 3-7.
5-7 Tag Communication Command
(BCC)
* It can be specified whether BCC is
enabled or disabled.
Initial value "00"
Hexadecimal code
Specify the number of read bytes
("0001" to "2000")
* Hexadecimal number
"0004" * Refer to Section 3-6.
5-21