207
RFID System
User’s Manual
SECTION 5
V600 Commands
SECTION 5
Communications
POLLING AUTO READ (PR)
When the ID Controller receives a POLLING AUTO READ command from the host device, it immedi-
ately sends a response acknowledging that the command was received. Data is then read when a Tag
approaches. During this interval, subcommand can be used to check on the command processing
results. Command can also be sent to the other Antenna during this interval.
1:1 Protocol
Data designation Specifies the code format when sending the read data response.
“A”: ASCII
“H”: Hexadecimal
Antenna designation Specifies the Antenna with which to communicate.
“1”: Antenna 1
“2”: Antenna 2
Read area start address Specifies the start address of the area in the Tag from which data is to be read from in 4-digit
hexadecimal.
Setting range: 0000
H to FFFFH
No. of bytes to read Specifies the number of bytes of data to read from the Tag in 2-digit hexadecimal.
Up to 256 bytes can be read with one command.
Setting range: 00
H to FF (Specify 00H for 256 bytes.)
• ASCII: 256 bytes (256 characters)
• Hexadecimal: 256 bytes (512 characters)
End code Indicates the execution result for the command.
“74”: Polling command received
The only error codes that may be returned here are 74 and communications errors with the host
device.
Refer to List of End Codes for information on other end codes.
p. 235
PR
A/H 1/2
211 4 2
2
* CR
Command
code
Terminator
Antenna
designation
×
Read area start
address
No. of bytes
to read
Data
desig-
nation
×
××
××
Command
Response
PR
74
22
2
* CR
Command
code
Terminator
End code
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