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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 getting the results of reading data from the RF Tags in the communications
range.
To enable identifying the RF Tags that were read, the StoredPC and EPC code are attached to the
read data.
The number of results data from RF Tag communications stored in the Reader/Writer is decre-
mented when a command response is returned.
Command Format
Response Formats
• Normal Response
n: 6 to 132
GET MULTIACCESS DATA 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
9300 hex
2 bytes
Parameter
Description
Register address
The register address (9300 hex) that specifies getting the results of multiaccess
data reading
Word count
Specify the total number of words starting from the number of RF Tags in the
response in 4-digit hexadecimal.
0003 to 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-10
Byte-11
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-12
...
...
...
...
...
...
Byte-12+ n-1
Error code
Read data
Options
2 bytes
2 to 64 bytes
0 to 68 bytes
StoredPC
EPC code
Reception
level
Reader/Writer
Number
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 hexadeci-
mal.
0009 to 0047 hex + Option size
• For details on option sizes, 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: ......