2400 Series SourceMeter
®
User’s Manual SCPI Command Reference 18-35
Null feed reading
OFFSet <n>
:CALCulate2:NULL:OFFSet <n> Specify null offset (REL) for feed
Parameters <n> = -9.999999e20 to Specify null offset value
9.999999e20
Query :OFFSet? Query null offset value
Description This command lets you establish a null offset (REL) for the selected
feed. When Null Offset is enabled the result is the algebraic difference
between the feed reading and the offset value:
CALC2 reading = feed reading - null offset
ACQuire
:CALCulate2:NULL:ACQuire Automatically acquire REL value
Description This command automatically acquires the null offset value. The next
available reading will become the offset value.
STATe <b>
:CALCulate2:NULL:STATe <b> Control null offset
Parameters <b> = 1 or ON Enable null offset
0 or OFF Disable null offset
Query :STATe? Query state of null offset
Description This command is used to enable or disable null offset. When enabled,
the CALC2 reading will include the null offset value. (See “OFFSet
<n>,” page 18-35) When disabled, CALC2 will not include the null
offset.
Read CALC2
DATA?
:CALCulate2:DATA? Read CALC2
Description This command is used to acquire all the readings used for the CALC2
limit tests. Note that if null offset is enabled, then the CALC2 readings
will include the null offset value. (See “Null feed reading,” page 18-35.)
At least one of the limit tests have to be enabled to acquire limit test
readings. (See “Configure and control limit tests,” page 18-36, and
“:STATe <b>,” page 18-33.)
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