Omron V680S Series, Руководство пользователя

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Sec
tion 6
Us
in
g
Commun
ic
a
tio
n
Di
agn
o
st
ic
and t
h
e RF Ana
lyzer
Section 6
Functions
137
RFID System
User's Manual
(Modbus TCP)
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
level 2 bytes Contains the receive power level for communication diagnostic in 4-digits hexadecimal.
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) Indicates high stability in communications.
Insufficient power to send
(0001hex) Indicates that the signal strength of the signal sent from the Reader/Writer to the RF Tag
was weak.
Insufficient power to receive
(0002 hex) Indicates that the signal strength of the signal returned from the RF Tag to the Reader/
Writer was weak.
Too much noise
(0003 he) Indicates that the noise level around the Reader/Writer was too high.
Insufficient signal-to-noise ratio.
(0004 hex) 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.
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.
Parameter Size Description