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Electromagnetic Inductive RFID System
User's Manual
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Appr
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SECTION 4
Commands
Error Noise Detection Command (EN)
The Error Noise Detection command detects noise above a specified level.
When deciding where to mount Tags and Antennas, use this command to investigate where the noise
level is high.
* When both data 1 and data 2 are omitted, noise detection is performed using the previously specified
values. If they are omitted the first time this command is set after turning ON the power supply, the
default settings will be used for noise detection.
Example: Detecting Noise at 3.3 V or Greater during a Period of 5 s
Send data:
EN330005
*
[CR]
Receive data: EN0000020
*
[CR]
The Error Noise Detection command can be canceled using the Command Processing Abort command (AA), because
no response is given for a set period of time.
Data 1
Error noise level
Specifies the error noise level in two decimal digits. (This setting may be omitted*).
Specification range: 00 to 33 (
×
0.1 V)
Default: 2.0 V
When “00” is specified: 100%
Data 2
Measurement time
Specifies the error noise measurement time in four decimal digits. (This setting may be omitted*).
Specification range: 0000 to 0100 s
Default: 0060 s
When “0000” is specified: Noise level when command is received is returned in the response.
Judgment result
The noise level is evaluated as the maximum absolute value in the measured data.
“0”: Normal; indicator will light green.
“1”: Error; indicator will flash red.
Maximum noise level
Gives the maximum noise level (V) detected during the measurement period in two decimal digits.
Unit: 0.1 V
2
2
4
2
㧖
CR
2
4
2
㧖
CR
Command
code "EN"
Data
1
Data
2
Command
code "EN"
Data
2
Command
2
2
2
㧖
CR
2
2
㧖
CR
Command
code "EN"
Data
1
Command
code "EN"
Specifying Data 1 and Data 2
Omitting Data 1
Omitting Data 2
Omitting Data 1 and Data 2
2
2
1
1
2
㧖
CR
1
2
Command
code "EN"
Retry
flag
Status
flag
End code
Judge-
ment
result
Maximum
noise level
Response
Summary of Contents for V670-CF01
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