Remote Operation
SCPI Commands and Syntax 5
5-27
5-48. Calibration Subsystem Command Details
This subsystem is used to calibrate the functions and hardware ranges of the 6100B. This
will correct for any system errors due to drift or ageing effects.
Before any adjustments can take place, access to calibration must be enabled.
There is a switch (on the rear panel of the 6100B, marked CALIBRATION) that must be set
to ENABLE. Having done this, the calibration password command must be sent. Once
entered into calibration mode, only calibration commands are accepted; these can then be
used to adjust the instrument.
CALibration:SECure:PASSword <spd>
This command is used to gain access to calibration mode. The <spd> must be the correct
calibration password registered in the 6100B software. The calibration password can be
changed only in calibration mode, (from the 6100B front panel).
CALibration:SECure:EXIT
This command is used to exit calibration mode, and return to normal operation, any pending
adjustment operations will be cancelled.
CALibration:PHASe<x>:VOLTage:RANGe <dnpd>,<dnpd>
This command sets the specified phase’s voltage channel hardware range:
• The first parameter is the lower limit that the range must cover.
• The second parameter is the upper limit that the range must cover.
The instrument determines the narrowest amplitude range that encompasses the limits.
CALibration:PHASe<x>:VOLTage:RANGe? [<cpd>{ LOW | HIGH }]
The default version will return the low and high limits of the presently selected range,
(comma separated). Add the appropriate optional parameter to query just one of these values.
CALibration:PHASe<x>: VOLTage:ACTual <dnpd>,<dnpd>
This command is used to change the actual values that the calibration will take place at:
• The first parameter is the amplitude (interpreted as an absolute voltage).
• The second parameter is the phase angle (interpreted according to the active setting of
the UNIT:ANGLE command, i.e. Degrees or Radians).
CALibration:PHASe<x>: VOLTage:ACTual:FREQuency?
This command is used to query the frequency the adjustment will take place at.
Note: The frequency itself is not adjustable.
CALibration:PHASe<x>:VOLTage:TARGet<dnpd>[,<dnpd>,<dnpd>,<dnpd>,<dnpd>]
For each calibration operation, the required calibration point (factor) must be targeted. This
command is used to select this point, and also permits the user to define parameters
associated with the calibration point in the current operation:
• The first <dnpd> is an integer (from 0 to 2) that indicates the target point to adjust.
Note: This corresponds to the list of target entries on the adjust instrument screen, (in
the target field), for the corresponding function and hardware range.
• The subsequent (and optional) <dnpd>'s correspond to the fundamental frequency,
harmonic number, absolute amplitude and phase angle of this point. These parameters
allow the target point itself to be moved. In practice, the factory set target defaults
should not require modification, so the non-optional form of the command should be all
that is required.
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