Omron V600 Series User Manual

112
Section 5 Communications Commands
RFID System
Operation Manual
Section 5
Communications
POLLING AUTO WRITE (PW)
For POLLING AUTO WRITE, the ID Controller immediately returns a response informing the host
device that the command has been received (end code: 74 = polling command received). The ID
Controller then waits for a Data Carrier to approach and writes data to Data Carrier memory. During
this time, the host device can check on the result of the command processing by using a subcommand.
■ 1:1 Communications
Data code specification Specifies the type of code in which the write data is being sent.
A: ASCII
H: Hexadecimal
R/W Head No. Specifies the Read/Write Head with which to communicate.
1: Read/Write Head 1
2: Read/Write Head 2
Write area start address Specifies the first address to which to write data to the Data Carrier as a four-digit hexadecimal
number.
Specifiable range: 0000H to FFFFH
Write data The data to write to Data Carrier memory. Up to 256 bytes can be written with one command.
• ASCII specification: 256 bytes (256 characters)
• Hexadecimal code specification: 256 bytes (512 characters)
Note: When using hexadecimal code, set two characters for each byte.
End code Indicates the results of command execution.
74: Polling command received.
The only error codes returned here are 74 and error codes for communications errors with the
host device.
Refer to End Codes for more information.
p.135
xx
PW
xx
A/H 1/2
xx
211 4
Write data
Write area start address
2
*CR
Terminator
n
xx
Command code
Data code
specifica-
tion
R/W Head No.
Command
Response
Command code
PW
74
22
2
*CR
Terminator
End code

Omron V600 Series Specifications

General

Operating Frequency	13.56 MHz
Supported Standards	ISO 15693, ISO 18000-3
Read Range	Up to 70 mm (depending on tag and environment)
Power Supply	24 VDC ±10%
Operating Temperature	-10 to 55°C (with no icing or condensation)
Humidity	35% to 85% (non-condensing)
Communication Interface	RS-232C