Omron V780 Series User Manual page 199

Parameter
Field length
Error code
Options
StoredPC
UII (EPC code)
Reception level
Diagnostic results
Reader/Writer
Number
• Error Response: RF Tag Communications Error
Byte-0 Byte-1
Transaction iden-
tifier
X X
Parameter
Error code
• Error Response: Command Error
Byte-0 Byte-1
Transaction identi-
fier
X X
Parameter
Exception code
 Execution Examples
Writing 2,048 Words of Data Starting from Word Address 0000 Hex (User Area) in the RF Tag with
No Options
Example 1: Execution When an RF Tag Is Not in the Communications Range (Error Code: 0000
(Normal Completion))
TX: 00000000100AFF64000230001111222233334444...FFFF0000
RX: 000000000006FF6600010000
Example 2: Execution When an RF Tag Is Not in the Communications Range (Error Code: 2001 Hex
(RF Tag Missing Error))
TX: 00000000100AFF64000230001111222233334444...FFFF0000
RX: 000000000006FF640002200
UHF RFID System V780-series Reader/Writer User's Manual (Z389)
Normal completion: 0006 hex + Option size
• For details on option sizes, refer to 7-3 RF Communications Command
Options on page 7-10.
For details, refer to 9-2-1 Command Errors on page 9-4.
These parameters may be omitted depending on the option value.
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.
The reception level is attached in signed 4-digit hexadecimal.
FFFF to FF9D hex (-1 to -99 [dBm])
Gives the diagnostic results in 4-digit hexadecimal.
For details, refer to Response Formats on page 7-136 under GET COMMUNI-
CATIONS DIAGNOSTIC INFORMATION on page 7-136.
This displays the Reader/Writer number of the reader/writer communicating
with the RF Tag in 4 hexadecimal digits.
0000 hex to 0007 hex
Byte-2 Byte-3 Byte-4 Byte-5
Protocol identifier Field length
0000 hex 0006 hex
For details, refer to 9-2-1 Command Errors on page 9-4.
Byte-2 Byte-3 Byte-4
Protocol identifier Field length
0000 hex 0003 hex
For details, refer to Exception Code on page 7-7 under Response Format for Error
Completion on page 7-7.
7 Modbus/TCP Communications
Description
Byte-6 Byte-7 Byte-8
Unit Function Subfunction code
identifier code
FF hex 64 hex
Description
Byte-5 Byte-6 Byte-7
Unit Function
identifier code
FF hex E4 hex
Description
Byte-9 Byte-10 Byte-11
Error code
0002 hex 2 bytes
Byte-8
Excep-
tion code
1 byte
7
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