Omron V680 Series User Manual page 139

Parameter Size
Send power level 2 bytes Contains the send power level for communication diagnostic in 4-digits hexadecimal.
0 to 10
• This is the corrected lowest value of DAC (10-bit) where communications with the RF Tag were
successful out of the multiple send power levels.
• The value is 0000 hex (fixed) when the communications result shows an RF Tag missing error.
Receive power 2 bytes Contains the receive power level for communication diagnostic in 4-digits hexadecimal.
level 0 to 10
• This is the corrected ADC (10-bit) value for response communications with the RF Tag.
• The value is 0000 hex (fixed) when the communications result shows an RF Tag missing error.
Noise level 2 bytes Contains the noise level for communication diagnostic in 4-digits hexadecimal.
0 to 10
• This is the corrected ADC (10-bit) value before communications with the RF Tag were
executed.
Power level 2 bytes Contains the power level for communication diagnostic in 4-digits hexadecimal.
0 to 10
• This parameters contains the overall value of the send and receive power levels calculated with
the following formula.
(Send power level + Receive power level)/2
Tag ID data 8 bytes Contains the Tag ID data of the recognized RF Tag for communication diagnostic in 16-digits
hexadecimal.
• The value is 0000000000000000 hex (fixed) when the communications result shows an RF Tag
missing error.
Reserved 2 bytes 0000 hex (fixed)
Diagnostic result
Normal communications
(0000 hex)
Insufficient power to send
(0001hex)
Insufficient power to receive
(0002 hex)
Too much noise
(0003 he)
Insufficient signal-to-noise ratio.
(0004 hex)
Send power level
The level is indicated by numbers 0 to 10. The higher the number, the more leeway there is.
It expresses the send signal level from the Reader/Writer to the RF Tag.
Receive power level
The level is indicated by numbers 0 to 10. The higher the number, the more leeway there is.
It expresses the signal strength level of the signal returned from the RF Tag to the Reader/Writer.
Noise level
The level is indicated by numbers 0 to 10. The lower the number, the more leeway there is.
It expresses the ambient noise level around the Reader/Writer.
Power level
The level is indicated by numbers 0 to 10. The higher the number, the more leeway there is.
It expresses the ratio of the ambient noise level around the Reader/Writer to the signal strength of the signal returned from the
RF Tag to the Reader/Writer.
Indicates high stability in communications.
Indicates that the signal strength of the signal sent from the Reader/Writer to the RF Tag
was weak.
Indicates that the signal strength of the signal returned from the RF Tag to the Reader/
Writer was weak.
Indicates that the noise level around the Reader/Writer was too high.
Indicates that the ambient noise level around the Reader/Writer was too strong for the
signal strength of the signal returned from the RF Tag to the Reader/Writer.
Description
Section 6
Functions
RFID System
137
User's Manual
(Modbus TCP)