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7 Modbus/TCP Communications
7 - 36
UHF RFID System V780-series Reader/Writer User’s Manual (Z389)
Function
This command reads data from the RF Tag in the communications range.
You can specify reading up to 2,048 words with one GET MULTIACCESS ID READ RESULTS com-
mand.
Command Format
Response Formats
• Normal Response
GET MULTIACCESS ID READ RESULTS
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
9100F hex
2 bytes
Parameter
Description
Register address
The register address (9100 hex) that specifies getting the results of multiaccess ID
reading
Word count
0022 hex + Option size
• For details on option sizes, refer to
7-3 RF Communications Command Options
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
Number of RF
Tags
X
X
0000 hex
2 bytes
FF hex
03 hex
1 byte
2 bytes
Byte-11
Byte-12 Byte-13 Byte-14 Byte-15
...
Byte-76
Byte-77 Byte-78 Byte-79 Byte-80
Error code
StoredPC
EPC code
Options
Reception level
Reader/Writer
Number
2 bytes
2 bytes
62 bytes
2 bytes
2 bytes
Parameter
Description
Field length
Gives the total number of bytes starting from the unit identifier in 4-digit
hexadecimal.
0047 hex + Option size
• For details on option sizes, refer to
Byte count
Gives the total number of bytes starting from the number of RF Tags in
2-digit hexadecimal.
44 hex + Option size
• For details on option sizes, refer to
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.
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: ......