7 Modbus/TCP Communications
7 - 22
UHF RFID System V780-series Reader/Writer User’s Manual (Z389)
7-6
V780 Command Details
Function
This command reads the ID (i.e., the UII (EPC code)) of 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
Additional Information
• StoredPC Bit Format
7-6-1
Single-access Communications Commands
ID 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
4000 hex
0020 hex
Parameter
Description
Register address
The register address (4000 hex) that specifies reading the ID
Word count
The number of words in the read StoredPC and UII (EPC code) (always 0020 hex).
Byte-0
Byte-1
Byte-2
Byte-3
Byte-4
Byte-5
Byte-6
Byte-7
Byte-8
Byte-9
Byte-10
Transaction identi-
fier
Protocol identifier
Field length
Unit
identifier
Function
code
Byte
count
StoredPC
X
X
0000 hex
0043 hex
FF hex
03 hex
40 hex
2 bytes
Byte-11
…
Byte-72
UII (EPC code)
62 bytes
Parameter
Description
StoredPC
Gives the StoredPD data in 4-digit hexadecimal.
The upper 5 bits are the UII (EPC code) word length. (Refer to
on page 22, below.)
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 code) word length
in the StoredPC are filled with 00 hex.
10
11
12
13
14
15
16
17
18
19
1A
1B
1C
1D
1E
1F
PC + UII (EPC) length
16 x (n + 1)
RFU
0:EPS
1:AFI
Data
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: ......