38
Types of Commands and Responses
Section 4-4
4-4-6
Auto Write (AW)
Writes data when the Data Carrier has approached. The ID Controller
responds when the lower communication has ended.
Command Format
Response Format
4-4-7
Polling Auto Read (PR)
When the host computer transmits the polling auto command, the ID Control-
ler immediately responds, indicating the reception of the command. After this,
the ID Controller reads data when the Data Carrier approaches. Meanwhile,
the host computer can make an inquiry on the result of the command process-
ing by using a subcommand.
Command Format
Response Format
A W A/H 1 X X X X X X X X
1 frame = 266 characters max.
∗
Header
Auto write
ASCII/HEX code specification
A: ASCII code, JIS 8 code
H: HEX code
R/W Head No. specification
(fixed to 1)
Specify the number of bytes to be written.
The number of bytes that can be read at a time is as follows:
ASCII: 256 characters (256 bytes)
HEX: 256 characters (128 bytes)
First address No. specification range
0000-07FF (2KB type)
0000-1FFF (8KB type)
Note: Addresses 0000 and 0001 cannot be written as these
are a production date area.
A W 0 0
Header
End code
00: Normal completion
∗
Auto write
P R A/H 1 X X X X X X
Header
Polling auto
read
ASCII/HEX code specification
A: ASCII code, JIS 8 code
H: HEX code
R/W Head No. specification
(fixed to 1)
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)
First address No. specification range
0000-07FF (2KB type)
0000-1FFF (8KB type)
∗
P R 7 4
Header
End code
74: Command received
Note: In this case, the end code is ei
ther 74 or host communication error.
∗
Polling auto
read
Summary of Contents for V600 RFID System
Page 1: ...OPERATION MANUAL Cat No Z193 E1 01 Board Type ID Controller V600 RFID System V600 CM1D...
Page 2: ...V600 RFID System V600 CM1D Board Type ID Controller Operation Manual Produced December 2003...
Page 3: ...iv...
Page 7: ...viii...
Page 10: ...xii...
Page 16: ...6 User I O Section 1 4...
Page 24: ...14 Outline Size Section 2 5...
Page 60: ...50 Communication Time Section 4 6...
Page 82: ...72 Index...
Page 84: ...74 Revision History...
Page 87: ...V6001 RFID System V600 CM1D Board Type ID Controller Cat No Z193 E1 01 OPERATION MANUAL...