7 Modbus/TCP Communications
7 - 26
UHF RFID System V780-series Reader/Writer User’s Manual (Z389)
Function
This command reads data from 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 READ
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
03 hex
2 bytes
2 bytes
Parameter
Description
Register address
Specify in 4-digit hexadecimal the start address for reading data.
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 read.
Setting range: 0001 to 0078 hex (1 to 120)
Byte-0
Byte-1
Byte-2
Byte-3
Byte-4
Byte-5
Byte-6
Byte-7
Byte-8
Byte-9
…
Byte-n
Transaction identi-
fier
Protocol identifier
Field length
Unit
identifier
Function
code
Byte
count
Read data
X
X
0000 hex
00 hex
1 byte
FF hex
03 hex
1 byte
2 to 240 bytes
Parameter
Description
Byte count
Contains the number of bytes of data that were read from the RF Tag in 2-digit hexa-
decimal. (02 to F0 hex)
Read data
The data that was read from the RF Tag is attached.
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 iden-
tifier
Function
code
Excep-
tion code
X
X
0000 hex
0003 hex
FF hex
83 hex
1 byte
Parameter
Description
Exception code
For details, refer to
Содержание V780 Series
Страница 22: ...Version Upgrade Information 20 UHF RFID System V780 series Reader Writer User s Manual Z389 ...
Страница 60: ...3 Part Names and Functions 3 14 UHF RFID System V780 series Reader Writer User s Manual Z389 ...
Страница 70: ...4 Installation and Connections 4 10 UHF RFID System V780 series Reader Writer User s Manual Z389 ...
Страница 76: ...5 Preparations for Communications 5 6 UHF RFID System V780 series Reader Writer User s Manual Z389 ...
Страница 152: ...6 Functions 6 76 UHF RFID System V780 series Reader Writer User s Manual Z389 ...
Страница 334: ...8 Browser Interface 8 44 UHF RFID System V780 series Reader Writer User s Manual Z389 ...
Страница 358: ...9 Troubleshooting 9 24 UHF RFID System V780 series Reader Writer User s Manual Z389 ...
Страница 362: ...10 Maintenance and Inspection 10 4 UHF RFID System V780 series Reader Writer User s Manual Z389 ...
Страница 392: ...Appendices A 30 UHF RFID System V780 series Reader Writer User s Manual Z389 ...
Страница 393: ...I 1 I UHF RFID System V780 series Reader Writer User s Manual Z389 Index ...
Страница 397: ......