Exfo FVA-3150 Variable Attenuator Manual do Utilizador Página 96

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Remote Control Commands
90 FVA-3150
Specific commands-Quick Reference Command Tree
INPut:ATTenuation?
Description This query returns a value indicating the current attenuation
setting OR the minimum/maximum attenuation setting.
Syntax INP:ATT? [<wsp><value>]
Parameters The <value> parameter is optional and can be
“MIN” to obtain the minimum setting for the current wavelength
“MAX” to obtain the maximum setting for the current
wavelength
Response The attenuation value in the format “999.99”. The units are dB.
Note that, depending on the current measurement mode, the
response will include different parameters:
In Absolute mode:
In Reference mode:
In Offset mode:
Example INP:ATT? MIN or
INP:ATT?
response actual attenuation=
response actual attenuation reference value(INP:OFFS?)=
response actual attenuation wavelength-specific offset+=
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