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7 Modbus/TCP Communications
7 - 28
UHF RFID System V780-series Reader/Writer User’s Manual (Z389)
Function
This command writes data to the RF Tag in the communications range.
Command Format
Response Formats
• Normal Response
Note If the reception level is required, use
GET RF TAG ADDITIONAL INFORMATION
• Error Response
DATA WRITE
Byte-0
Byte-1
Byte-2
Byte-3
Byte-4
Byte-5
Byte-6
Byte-7
Byte-8
Byte-9
Byte-1
0
Byte-11
Transaction identi-
fier
Protocol identifier
Field length
Unit
identifier
Function
code
Register address
Word count
X
X
0000 hex
2 bytes
FF hex
10 hex
2 bytes
2 bytes
Byte-12
Byte-13
…
Byte-n
Byte
count
Data to write
1 byte
1 to 120 words
Parameter
Description
Field length
Setting range: 0009 to 00F7 hex (9 to 247)
Register address
Specify in 4-digit hexadecimal the start address for writing data in the RF Tag.
Setting ranges (word address specifications)
0000 to 07FF hex: Reserved area
1000 to 17FF hex: UII (EPC) area
2000 to 27FF hex: TID area
3000 to 3FFF hex: User area
Word count
Specify in 4-digit hexadecimal the number of words of data to write.
Setting range: 0001 to 0078 hex (120 words max.)
Byte count
Specify in 4-digit hexadecimal the number of bytes of data to write.
Setting range: 02 to F0 hex (240 bytes max.)
Data to write
Specify the data to write to RF Tag.
Between 1 and 120 words of data can be written with one command.
Byte-0
Byte-1
Byte-2
Byte-3
Byte-4
Byte-5
Byte-6
Byte-7
Byte-8
Byte-9
Byte-10 Byte-11
Transaction identi-
fier
Protocol identifier
Field length
Unit
identifier
Function
code
Register address
Word count
X
X
0000 hex
0006 hex
FF hex
10 hex
2 bytes
2 bytes
Parameter
Description
Register address
The register address from the command is set
Word count
The word count from the command is set.
Byte-0
Byte-1
Byte-2
Byte-3
Byte-4
Byte-5
Byte-6
Byte-7
Byte-8
Transaction identi-
fier
Protocol identifier
Field length
Unit
identifier
Function
code
Excep-
tion code
X
X
0000 hex
0003 hex
FF hex
90 hex
1 byte
Summary of Contents for V780 Series
Page 22: ...Version Upgrade Information 20 UHF RFID System V780 series Reader Writer User s Manual Z389 ...
Page 60: ...3 Part Names and Functions 3 14 UHF RFID System V780 series Reader Writer User s Manual Z389 ...
Page 152: ...6 Functions 6 76 UHF RFID System V780 series Reader Writer User s Manual Z389 ...
Page 334: ...8 Browser Interface 8 44 UHF RFID System V780 series Reader Writer User s Manual Z389 ...
Page 358: ...9 Troubleshooting 9 24 UHF RFID System V780 series Reader Writer User s Manual Z389 ...
Page 392: ...Appendices A 30 UHF RFID System V780 series Reader Writer User s Manual Z389 ...
Page 393: ...I 1 I UHF RFID System V780 series Reader Writer User s Manual Z389 Index ...
Page 397: ......