Omron V780 Series User Manual page 188

7 Modbus/TCP Communications
GET MULTIACCESS ID READ RESULTS
 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
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-11 Byte-12
Error code
2 bytes
Parameter
Field length
Byte count
Number of RF Tags
7 - 36
Byte-2 Byte-3 Byte-4
Protocol identifier Field length
0000 hex 0006 hex
The register address (9100 hex) that specifies getting the results of multiaccess ID
reading
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
Protocol identifier Field length
0000 hex 2 bytes
Byte-13 Byte-14 Byte-15
StoredPC EPC code
2 bytes
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 7-3 RF Communications Command
Options on page 7-10.
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 7-3 RF Communications Command
Options on page 7-10.
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.
Byte-5 Byte-6 Byte-7
Unit Function
identifier code
FF hex 03 hex
Description
Byte-5 Byte-6 Byte-7
Unit Function
identifier code
FF hex 03 hex
... Byte-76 Byte-77
Reception level
62 bytes 2 bytes
Description
UHF RFID System V780-series Reader/Writer User's Manual (Z389)
Byte-8 Byte-9 Byte-10
Register address Word count
9100F hex 2 bytes
Byte-8 Byte-9 Byte-10
Byte Number of RF
count Tags
1 byte 2 bytes
Byte-78 Byte-79 Byte-80
Options
Reader/Writer
Number
2 bytes
Byte-11