Section 6: 9100 System Operation — SCPI Language
6-39
Final Width = 215mm
6.6.4.11
[SOUR]:CAP[:LEVE][:IMM][:AMPL](?)
<DNPD>
Purpose
This command selects Capacitance hardware.
<DNPD>
The 'decimal numeric program data' is a number which sets the required output capacitance, expressed in units of Farads. It will
automatically choose the 'best' hardware range for the defined capacitance output.
For details of local operation and parameter limitations, refer to Volume 1, Section 4, Sub-Section 4.13 (Capacitance).
Response to Query Version
The instrument will return the present capacitance output value. The returned number will be in standard scientific format (for
example: 200nF would be returned as
2.0E-7
).
6.6.4.12
[SOUR]:CAP:UUT_I(?)
<CPD>{LOW|SUPer}
Purpose
In the synthesized capacitance technology used in the 9100, the current sourced from the UUT must fall within certain spans of
values for each commanded capacitance value. For UUTs producing source currents which are larger than the values in the 'Low'
(default) span, the greater current can be accommodated by selecting 'SUPER'.
The
CAP:UUT_I {LOW|SUPer}
command is used to switch between the two current configurations (refer to Volume 1 of this
User's Handbook, Section 4, Sub-section 4.7, paras 4.7.5.7 for a description of UUT—I levels). There is no default setting.
Most capacitance spans do not allow
SUP
. Thus if
SUP
is already selected, and a transition is made to a capacitance span for which
it is not available, then
LOW
will be enforced.
<CPD>
The 'character program data' performs the required action. Refer to Volume 1, Section 4, paras 4.13.5.7, for a description of the
current limits and output voltage limitation.
•
LOW
will select the UUT source current 'Low' limits.
•
SUPer
will select the UUT source current 'Super' limits.
Response to Query Version
The 9100 will return either
LOW
or
SUP
, dependent on the active limits selection.
