6-10 Averaging Filter, Math, and Buffer Model 6220/6221 Reference Manual
Return to Section 6 topics
Remote programming – Math
Commands for mX+b and m/X+b math calculations are listed in Tabl e 6 - 3.
1. MXB selects the mX+b calculation and RECiprocal selects the m/X+b calculation.
2. While Delta, Pulse Delta, or Differential Conductance is running and Math is enabled, the CALC1:DATA:LAT? command can be
sent to read the latest (last) post-math reading processed by the Model 622x. If this read command is sent before a new reading is
available, the last reading will again be returned.
The CALC1:DATA:FRESh? command is the same as the CALC1:DATA:LATest? command except that once a reading is returned,
it cannot be returned again. This read command guarantees that each reading gets returned only once. If a new (fresh) reading is not
available when CALC1:DATA:FRESh? is sent, error -230 Data corrupt or stale will occur.
For more information on these read commands, see “Data flow and read commands,” on page 5-13.
Table 6-3
Math commands
Command Description Default
CALCulate[1]:FORMat <name> Select math format.
1
<name> = NONE, MXB or RECiprocal
MXB
CALCulate[1]:KMATh:MMFactor <NRf> Set “m” factor for mX+b and m/X+b.
<NRf> = -9.99999e20 to 9.99999e20
1.0
CALCulate[1]:KMATh:MA1Factor <NRf> Set “m” factor for mX+b and m/X+b.
(same as MMFactor)
1.0
CALCulate[1]:KMATh:MBFactor <NRf> Set “b” factor for mX+b and m/X+b.
<NRf> = -9.99999e20 to 9.99999e20
0.0
CALCulate[1]:KMATh:MA0Factor <NRf> Set “b” factor for mX+b and m/X+b.
(same as MBFactor)
0.0
CALCulate[1]:STATe <b> Enable or disable CALC1 calculation OFF
CALCulate[1]:DATA[:LATest]? Return the latest CALC1 result.
2
CALCulate[1]:DATA:FRESh? Same as CALC1:DATA? except a reading
can only be returned once.
2
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