Omron V680S-HMD63-ETN User Manual page 169

 RF TAG OVERWRITE COUNT CONTROL
This query is used to manage the number of times data is written to an RF Tag. You can use this query
for RF Tags with EEPROM memory.
 Query Format
Byte 0 Byte 1 Byte 2 Byte 3
Transaction Protocol
identifier identifier
X X 0000 hex
Parameter
Register address
Word count
Byte count
Overwrite count Operation Initialize: 0000 hex, Subtract: 0001 hex, Add: 0002 hex
information
Address
Count
 Response Format
Normal Response
Byte 0 Byte 1 Byte 2 Byte 3
Transaction Protocol
identifier identifier
X X 0000 hex
Parameter
Register address
Number of words of overwrite
count information
Error Response
Byte 0 Byte 1 Byte 2
Transaction
Protocol identifier
identifier
X X 0000 hex
Parameter
Exception code
 Execution Example
Setting 5,000 (1388 Hex) as the Count in Overwrite Count Address 0080 Hex in the RF Tag with an
Addition Specification
TX: 00000000000FFF10A3000004080000008000001388
RX: 000000000006FF10A3000004
Byte 4 Byte 5 Byte 6 Byte 7
Unit
Field length Function code
identifier
000F hex FF hex 10 hex
The register address (A300 hex) that specifies overwrite count control.
The number of words of overwrite count information (0004 hex)
The number of bytes of overwrite count information (08 hex)
Specify in 4-digit hexadecimal the start address of the overwrite count control area in the RF Tag.
Setting range: 0000 to 9FFF hex
Specify the count in 8-digit hexadecimal.
Byte 4 Byte 5 Byte 6 Byte 7
Unit
Field length Function code
identifier
0006 hex FF hex 10 hex
Contains the register address that was specified in the query.
Contains the word count that was specified in the query.
Byte 3 Byte 4 Byte 5
Field length
0003 hex
For details, refer to Exception Code Table in this section.
p.157
Host Communications Specifications
Byte 8 Byte 9 Byte 10 Byte 11 Byte 12
Byte
Register address Word count
count
A300 hex 0004 hex 08 hex
Byte 13 Byte 14 Byte 15 Byte 16 Byte 17
Operation Address
2 bytes 2 bytes
Description
Byte 8 Byte 9 Byte 10
Number of words of overwrite
Register address
count information
A300 hex 0004 hex
Description
Byte 6 Byte 7 Byte 8
Unit Function Exception
identifier code code
FF hex 90 hex 1 byte
Description
Section 7
Byte 13 ··· Byte 20
Overwrite count information
8 bytes
Byte 18 Byte 19 Byte 20
Count
4 bytes
Byte 11
RFID System
User's Manual
(Modbus TCP)
167