Omron V780 Series, Руководство пользователя

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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 on page 7-10.
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 Exception Code on page 7-7 under Response Format for Error
Completion on page 7-7.