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5-5 Data Code Designation
You can specify a type of code used to transmit data to be read or written between a host device and Read/Write antenna.
ASCII code designation and hexadecimal code designation are available.
♦ ♦ ♦ ♦ ASCII code (JIS 8 unit code) designation "A"
1 byte of data of tag is transmitted directly as ASCII code or JIS 8 unit code. Transmitted one character is equal to a 1 byte of data in
a tag. Character data can be read/written directly.
Do not use any control code, such as [SOH] and [CR], in transmission data. Otherwise, a command error occurs.
<Example 1 of writing>
When "OMRON" is specified in 5 bytes of memory beginning with 10h (hexadecimal number) as writing data, data is written into tag
memory as shown below.
Command
STX
DA
SA
Command code
00
80
W1
Response
STX
DA
SA
Command code
80
00
W1
<Example 1 of reading>
In this data shown here, when 5 bytes of memory beginning with 10h (hexadecimal number) is read out, the read data is "OMRON".
Command
STX
DA
SA
Command code
00
80
R3
Response
STX
DA
SA
Command code
80
00
R3
<Example 2 of writing>
When "1234" is specified in 4 bytes of memory beginning with 10h (hexadecimal number) as writing data, data is written into tag mem-
ory as shown below.
Command
STX
DA
SA
Command code
00
80
W1
Response
STX
DA
SA
Command code
80
00
W1
5-14
Communication designation
Split flag
SU
A
Termination code
Response number
00
Communication designation
Split flag
SU
A
Termination code
Response number
00
01
Communication designation
Split flag
SU
A
Termination code
Response number
00
ASCII code designation
Code designation
Start address
A
ID code
∗∗∗∗∗∗∗∗
01
Code designation
Start address
A
ID code
Split flag
Code designation
********
A
A
ASCII code designation
Code designation
Start address
A
ID code
∗∗∗∗∗∗∗∗
01
Number of written bytes
0010
0005
Tag Memory
Tag Memory
Address
Address
ETX
Number of read bytes
0010
0005
Start address
Number of read bytes
0010
0005
Number of written bytes
0010
0004
Tag Memory
Address
ETX
Written data
ETX
OMRON
ETX
Number of read data
ETX
OMRON
Written data
ETX
1234
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