39
Types of Commands and Responses
Section 4-4
Subcommand Format
Subcommand Response
Format
4-4-8
Polling Auto Write (PW)
When the host computer transmits the polling auto command, the ID Control-
ler immediately responds, indicating the reception of the command. After that,
the ID Controller writes 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
P R C/E 1
Header
R/W Head No. specification (fixed to 1)
∗
Polling auto
read
Inquiry on result of polling auto
processing/termination
C: Inquiry on result of processing
E: Termination
P R 0 0 X X X X
Header
Polling auto
read
∗
Read data (on normal completion only)
End code
00: Normal completion
74: Data Carrier not approaching (2nd time or later)
75: Polling auto processing terminated (before com
munication processing with Data Carrier)
76: Polling auto processing terminated (when Data
Carrier has approached and during or after commu
nication processing with Data Carrier)
P W A/H 1 X X X X X X X X
1 frame = 266 characters max.
∗
Header
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.
Polling auto
write
P W 7 4
Header
End code
74: Command received
Note: In this case, the end code is
either 74 or host communication
error.
∗
Polling auto
write
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...