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Section 3 Command and Response Format
RFID System
User's Manual
Section 3
Commands
Command and Response Format
The format of commands sent between the host computer and the Hand-held Reader Writer and responses
returned from the Hand-held Reader Writer to the host computer is shown below. The command and
response both consist of a single frame. The frame (including the terminator) consists of up to 4,106
characters for commands and 4,102 characters for responses.
Specifying Data Code
Whether the read or write data is treated as an ASCII (or JIS 8) code or hexadecimal code is specified
in a command.
•ASCII (JIS 8 Code)
•One character of ASCII or JIS 8 code data occupies 1 byte (1 address) of the Data Carrier memory.
Name Description
Command code Command: Contains the two-character code (see page p.46).
Response: Contains the same code that was sent with the command.
Data Contains the details of the command and response, as follows:
•ASCII/hexadecimal code specification, processing specification, mode specification
•Processing area number specification
•Processing start address
•Number of bytes to be read, write data
Terminator Indicates end of command/response.
×× ×× ×
Command code Data Terminator
2
n2
1 frame
CR
•Example of Specifying ASCII Code
Address
0010
0011
0012
0013
0014
"O"
"M"
"R"
"O"
"N"
4
5
4
4
4
D
2
F
F
E
•Data Carrier
CR
WT 10A
Command code Start address
00 ROOM
Write data
ASCII
setting
Processing
area number
setting
Terminator
1
N
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