7-6-10 Maintenance Commands: Rf Communications Information - Omron V780 Series User Manual

7-6-10 Maintenance Commands: RF Communications Information

GET RF TAG ADDITIONAL INFORMATION
 Function
This command us used to check the attached information (i.e., the UII (EPC code) and reception level)
that resulted from communications for a single-access command with the immediately preceding RF Tag.
If communications for the immediately preceding single-access command ended in an error,
attached information of 00 hex will be 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
If there is no Reader/Writer number:
Byte-9 Byte-10
StoredPC
2 bytes
If there is a Reader/Writer number:
Byte-9 Byte-10
StoredPC
2 bytes
Parameter
Byte count
StoredPC
UII (EPC code)
Reception level
Reader/Writer Number
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 (DA00 hex) for reading the attached information for RF Tag
communications
0021 hex: If there is no Reader/Writer number
0022 hex: If there is a Reader/Writer number
Byte-2 Byte-3 Byte-4
Protocol identifier Field length
0000 hex 0045 hex
Byte-11 ... Byte-72
UII (EPC code)
62 bytes
Byte-11 ... Byte-72
UII (EPC code)
62 bytes
42 hex: if there is no Reader/Writer number
44 hex: If there is a Reader/Writer number
Gives the StoredPC data in 4-digit hexadecimal.
The upper 5 bits are the UII (EPC) word length.
Gives the Tag-specific information according to Gen2 standards.
All bytes of the UII (EPC code) section that exceed the UII (EPC) word length in the
StoredPC are filled with 00 hex.
Gives the reception level in signed hexadecimal.
FFFF to FF9D hex (-1 to -99) [dBm]
This displays the Reader/Writer number of the reader/writer communicating with the
RF Tag in 4 hexadecimal digits.
* This will be 0000 hex if the Multi-Reader/Writer mode is disabled.
7 Modbus/TCP Communications
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-73 Byte-74
Reception level
2 bytes
Byte-73 Byte-74 Byte-75
Reception level Reader/Writer
number
2 bytes 2 bytes
Description
Byte-8 Byte-9 Byte-10 Byte-11
Register address Word count
DA00 hex 0021 hex
Byte-8
Byte
count
1 bytes
Byte-76
7
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