6 Remote Operations
52 Keysight J7201A/B/C Operating and Service Manual
Programming Guide (SCPI)
SCPI command syntax
The following conventions are used for SCPI command syntax for remote interface programming.
– Square brackets ([]) indicate optional keywords or parameters
– Braces ({}) enclose parameter choices within a command string
– Angle brackets (<>) enclose parameters for which you must specify a value
– A vertical bar (|) separates multiple parameters
Commands relevant to J7201A/B/C
[INPut:]ATTenuation/INPut[:ATTenuation]
Sets or returns the attenuation level of the attenuation control unit.
[INPut:]ATTenuation <numeric>[, <float>]
Examples
To set the attenuation level and frequency to 58 dB and 15 GHz:
:ATT 58dB, 15GHz
To query the set attenuation level:
[INPut:]ATTenuation?
Error Messages
If <numeric> is beyond the range specified, a return error value will be clipped to the
minimum or maximum attenuation value. You may encounter the following two error
messages if the value is not within the specified range:
- + 12, “Value clipped to Max”
- + 11, “Value clipped to Min”
Query? Yes
Set? Yes
Set/Return Parameters
Numeric representation format: Integer (for
example, 8)
Minimum 0 - for both attenuation level and frequency
Maximum
121 (J7201A/B) - for attenuation level
101 (J7201C) - for attenuation level
6 GHz (J7201A) - for frequency
18 GHz (J7201B) - for frequency
26.5 GHz (J7201C) - for frequency
Units dB, Hz
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