User's Manual
Table Of Contents
- Modbus/TCP Communications
- 7-1 Outline
- 7-2 Message Formats
- 7-3 RF Communications Command Options
- 7-4 Communications Procedure
- 7-5 Commands
- 7-6 V780 Command Details
- 7-6-1 Single-access Communications Commands
- 7-6-2 Multiaccess Communications Commands
- 7-6-3 Modbus Expansion Communications Commands
- 7-6-4 Reader/Writer Control Commands
- 7-6-5 Reader/Writer Setting Commands: Network Settings
- 7-6-6 Reader/Writer Setting Commands: Communications Settings
- 7-6-7 Reader/Writer Setting Commands: Device Settings
- 7-6-8 Maintenance Commands: Device Information
- 7-6-9 Maintenance Commands: Log Information
- 7-6-10 Maintenance Commands: RF Communications Information
7 Modbus/TCP Communications
7 - 30
UHF RFID System V780-series Reader/Writer User’s Manual (Z389)
Function
This command writes the specified data to the specified number of words beginning from the speci-
fied write start address. The specifications are made in the command.
Command Format
Response Formats
• Normal Response
Note If the reception level is required, use GET RF TAG ADDITIONAL INFORMATION on page 7-121.
DATA FILL
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 000D hex FF hex 10 hex 8100 hex 0003 hex
Byte-12 Byte-13 Byte-14 Byte-15 Byte-16 Byte-17 Byte-18
Byte
count
Fill information
Fill address Number of fill
words
Fill data
06 hex 2 bytes 2 bytes 2 bytes
Parameter Description
Register address The register address (8100 hex) that specifies filling data
Word count Number of words of fill information (0003 hex)
Byte count Number of bytes of fill information (06 hex)
Fill information Fill address Specify in 4-digit hexadecimal the start address for writing data in the RF
Tag .
0000 to 07FF hex: Reserved area
1000 to 17FF hex: EPC area
2000 to 27FF hex: TID area
3000 to 37FF hex: User area
Number of fill
words
Specify in 4-digit hexadecimal the number of words of data to fill.
Setting range: 0000 hex or 0001 to 0800 hex
• If 0000 hex is specified for the number of fill words, the entire memory
area will be filled.
• You cannot write data to more than one area with the same command.
Fill data Specify in 4-digit hexadecimal the data to write to the RF Tag.
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 0003 hex
Parameter Description
Register address The register address from the command is set
Word count The word count from the command is set.