User`s manual

44
Section 3
Communicating with ID Tags
RFID System
User's Manual
Section 3
Commands
Communicating with ID Tags
Specifying Data Code
Whether the read or write data is treated as an ASCII (or JIS 8) or hexadecimal is specified in each
command.
■ ASCII (JIS 8 Code)
• One character of ASCII or JIS 8 code data occupies 1 byte
(1 address) of the ID Tag memory.
■ Hexadecimal
• One character is treated as a hexadecimal number. Therefore,
only numerals 0 through 9 and A to F can be accepted.
• Two characters of data occupy 1 byte (1 address) of the ID Tag
memory. Therefore, specify data in 2-character units (in even
numbers) when using a WRITE command. If an odd number of
characters is specified by mistake, an error will occur.
Address
0010
0011
0012
0013
0014
“O”
“M”
“R”
“O”
“N”
4
5
4
4
4
D
2
F
F
E
1 byte
•ID Tag
WT 1 0A00 ROOM1 CRN
WT 1 0A00 ROOM1 CRNST
Command code
Start address
Write data
ASCII
setting
Processing
area number
setting
Terminator
Command code
Start address
Write data
ASCII
setting
Processing
area number
setting
Terminator
Communications
specification
• Examples for Specifying ASCII Text
V600 Commands
V680 Commands
0010
0011
9
1
9
6
Address
1 byte
•ID Tag
WT 1 0H1 00 9619 CR
WT 1 0H1 00 9619 CRST
Start address Write data Terminator
Command
code
Hexa-
decimal
code
setting
Process-
ing area
number
setting
Start address Write data Terminator
Command
code
Hexa-
decimal
code
setting
Process-
ing area
number
setting
• Examples for Specifying Hexadecimal
V600 Commands
V680 Commands