4-4
Section
Types of Commands and Responses
39
4. If the HEX code is specified, the number of write data characters in each
frame must be even. If it is odd, a command input error occurs.
5. Divide the frame so that the last frame is not AA
∗
CR or XZ
∗
CR.
Frame 1
Frame 2
Frame
(n–1)
Frame n
:
:
1 frame = 266 characters
Header
A/H
1
First address
Write data 1
CR
CR
Write data (n–1)
Write data 2
Write data n
CR
*CR
(Command 1)
XR
CR
(Delimiter)
ID Controller
Host
...
CR
CR
CR
CR
(Communication procedure)
(Command 2)
(Command n–1) (Command n)
(Delimiter) (Delimiter) (Delimiter)
(Response)
4-4-5 Auto Read (AR)
Reads data when the Data Carrier has approached. The ID Controller responds
when the lower communication has ended.
Command Format
A
R
A/H
1
X
X
X
X
X
X
Header
ASCII/HEX code specification
A: ASCII code, JIS 8 code
H: HEX code
Specify the number of bytes to be read in
HEX code. The number of bytes that can
be read at a time is as follows:
ASCII: 256 bytes (256 characters)
HEX: 128 bytes (256 characters)
R/W Head No. specification
(fixed to 1)
Read
∗
First address No. specification range
0000-07FF (2KB type)
0000-1FFF (8KB type)
Response Format
Header
Read data (on normal completion only)
Auto Read
End code
00: Normal completion
A
R
O
O
X
X
X
X
∗
