User manual

IEEE-488 Reference
2001-900-01 Rev. K / August 2010 4-147
4.19.15 :METHod <name>
[:SENSe[1]]:CURRent[:DC]:METHod <name>Specify measurement technique for DCI.
Parameters <name> =NORMalNormal DCI measurement technique
ICIRcuit In-circuit DCI measurement technique
Format :curr[:dc]:meth <name>
Defaults Power-up Saved power-on setup
*RST NORMal
:SYSTem:PRESet NORMal
Query :METHod? Query measurement technique
Short-form format: :curr:dc:meth?
Response message: NORM or ICIR
This command is used to select the DCI measurement technique. NORMal is used to make conventional
current measurements which are performed by breaking the circuit and placing the ammeter in series with
it.
The ICIRcuit selection allows you make an in-circuit current measurement of a wire or circuit board
trace. This measurement technique is performed by making four-wire INPUT connections to the wire or
trace (the AMPS input is not used). The instrument will then automatically perform a four-wire ohms
offset compensated measurement and calculate the current. See front panel operation for complete details
on making in-circuit current measurements.
Programming example 10 OUTPUT 716; “:curr:dc:meth icir; meth?”
20 ENTER 716; A$
30 PRINT A$
40 END
Line 10 Two commands in this program message; the first selects the in-circuit current measurement
method, and the second queries the selected method.
Line 20 Addresses the Model 2001 to talk.
Line 30 Displays the selected measurement method (ICIR).
4.19.16 :SOURce <name>
[:SENSe[1]]:FREQuency:SOURce <name> Specify input source for FREQ.
Parameters <name> = CURRentSelect current frequency input source
= VOLTage Select voltage frequency input source
Format :freq:sour <name>
Defaults Power-up Saved power-on setup
*RST VOLTage
:SYSTem:PRESet VOLTage