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7 Modbus/TCP Communications
7 - 42
UHF RFID System V780-series Reader/Writer User’s Manual (Z389)
• Error Response
Byte count
Gives the total number of bytes starting from the number of RF Tags in 2-digit hexa-
decimal.
06 to 44 hex + Option size
• For details on option sizes, refer to
7-3 RF Communications Command Options
Number of RF Tags
Gives the number of RF Tags that were read in 4-digit decimal. (0001 to 001F hex)
The number of RF Tags is decremented when a command response is returned.
Error code
Gives the RF Tag access results in 4-digit hexadecimal.
0000 hex: Normal end
Not 0000 hex: Error code
• For details on the error codes, refer to
Read data
The data that was read from the RF Tag is attached.
Options
This section may be omitted depending on the option value for the SET MULTIAC-
CESS ID READ command.
StoredPC
Gives the StoredPC data in 4-digit hexadecimal.
The upper 5 bits are the UII (EPC) word length.
UII (EPC
code)
Gives the Tag-specific information according to Gen2 standards.
All bytes of the UII (EPC code) section that exceed the UII (EPC) word length in the
StoredPC are filled with 00 hex.
Reception
level
The reception level is attached in signed 4-digit hexadecimal.
FFFF to FF9D hex (-1 to -99 [dBm])
Reader/Writer
Number
This displays the Reader/Writer number of the reader/writer communicating with the
RF Tag in 4 hexadecimal digits.
0000 hex to 0007 hex
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
83 hex
1 byte
Parameter
Description
Exception code
For details, refer to
Parameter
Description
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: ......