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7 Modbus/TCP Communications
UHF RFID System V780-series Reader/Writer User’s Manual (Z389)
7-
6 V780 Co
mm
and
Detail
s
7
7-6
-2 Multia
ccess Co
mmunications Commands
Function
This command specifies reading data from the RF Tags in the communications range.
Command Format
Response Formats
• Normal Response
• Error Response
SET MULTIACCESS 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
000D hex
FF hex
10 hex
9200F hex
0003 hex
Byte-12 Byte-13 Byte-14 Byte-15 Byte-16 Byte-17 Byte-18
Byte
count
Read area start
address
Read size
Options
06 hex
2 bytes
2 bytes
2 bytes
Parameter
Description
Register address
The register address (9200 hex) that specifies setting multiaccess data reading
Read area start 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: EPC area
2000 to 27FF hex: TID area
3000 to 3FFF hex: User area
Read size
Specify in 4-digit hexadecimal the number of words of data to read.
Setting range: 0001 to 0020 hex (1 to 32)
Options
For details, 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
Transaction identi-
fier
Protocol identifier
Field length
Unit
identifier
Function
code
Word count
X
X
0000 hex
0004 hex
FF hex
10 hex
0003 hex
Parameter
Description
Word count
Always 0003 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
90 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: ......