Omron V780 Series User Manual page 193

GET MULTIACCESS DATA READ RESULTS
 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
Byte-0 Byte-1
Transaction identi-
fier
X X
Parameter
Register address
Word count
 Response Formats
• Normal Response
Byte-0 Byte-1
Transaction identi-
fier
X X
Byte-12 ...
Error code
2 bytes
n: 6 to 132
Parameter
Field length
UHF RFID System V780-series Reader/Writer User's Manual (Z389)
Byte-2 Byte-3 Byte-4
Protocol identifier Field length
0000 hex 0006 hex
The register address (9300 hex) that specifies getting the results of multiaccess
data reading
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
on page 7-10.
Byte-2 Byte-3 Byte-4 Byte-5
Protocol identifier Field length
0000 hex 2 bytes
... ...
Read data
2 to 64 bytes
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 7-3 RF Communications Command Options
on page 7-10.
7 Modbus/TCP Communications
Byte-5 Byte-6 Byte-7
Unit Function
identifier code
FF hex 03 hex
Description
Byte-6 Byte-7
Unit Function
identifier code
FF hex 03 hex
... ...
StoredPC EPC code
2 bytes 62 bytes
Description
Byte-8 Byte-9 Byte-10 Byte-11
Register address Word count
9300 hex 2 bytes
Byte-8 Byte-10 Byte-11
Byte Number of RF
count Tags
1 byte 2 bytes
... Byte-12+ n-1
Options
0 to 68 bytes
Reception Reader/Writer
level Number
2 bytes 2 bytes
7
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