118
SECTION 5
V680 Commands
RFID System
User’s Manual
SECTION 5
Communications
WRITE (WT)
The WRITE command writes up to 2 KB of data to the memory of a Tag.
1:1 Protocol
Communications Designation Other Than PA or PI
Note: When using the multi-access trigger communications designation (MT), the ID controller returns
an end code of 03 after communicating with all Tags.
Communications Designation of PA or PI
Communications
designation
Specifies the method of communications with the Tag.
Refer to Communications Designation Function for details on the communications designation.
p. 103
Data designation Specifies the code format when sending the Tag write data.
“A”: ASCII
“H”: Hexadecimal
Antenna designation Specifies the Antenna with which to communicate.
“1”: Antenna 1
“2”: Antenna 2
UID A unique identifier used to identify Tags.
Added only for the selective communications designation (SL).
Write area start address Specifies the start address of the area in the Tag to which data is to be written in 4-digit hexadec-
imal.
Setting range: 0000
H to FFFFH
Write data Specified the data to be written to the Tag.
Up to 2 KB can be written with one command.
• 1000 Byte Tags (V680-D1KP@@)
ASCII: 1000 bytes (1000 characters)
Hexadecimal: 1000 bytes (2000 characters)
• 8-/32-KB Tags (V680-D8KF68/-D32KF68)
ASCII: 2048 bytes (2048 characters)
Hexadecimal: 2048 bytes (4096 characters)
• 2000 Byte Tags (V680-D2KF@@)
ASCII: 2000 bytes (2000 characters)
Hexadecimal: 2000 bytes (4000 characters)
UID A unique identifier used to identify Tags.
Added only for multi-access communications designations (MT/MR).
Command
code
Data
desig-
nation
Antenna designation
Write data
Terminator
Write area start address
Communi-
cations
designation
××
WT
××
A/H 1/2
××
211 4
2
* CR
××
n
××
2
...
××
UID
××
0 or 16
...
Command
Response
Command
code
Terminator
End code
Antenna
desig-
nation
Resend
flag
WT
00
22
2
* CR
0×
11
×
...
×
××
0 or 16
UID
RD
01
22
2
*
CR
End code
0
×
11
Command
code Terminator
Resend
flag
Antenna
designa-
tion
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