National Instruments NI-DMM manual

QUICK REFERENCE
NI-DMM Instrument Driver
Initialize and Close
ICON TYPE PARAMETER VALUE TO SET, COMMENTS1
ViRsrc resourceName For Traditional NI-DAQdevices, use DAQ:: # ,
where
# is the device number.
For NI-DAQmx devices, the device name is
assigned by Measurement &Automation
Explorer (MAX). Optionally, for all devices
you can use an IVIlogical name.
ViBoolean IDQuery NIDMM_VAL_TRUE
NIDMM_VAL_FALSE
ViBoolean resetDevice NIDMM_VAL_TRUE
NIDMM_VAL_FALSE
ViSession* vi Reference to new session handle
ViRsrc resourceName For Traditional NI-DAQ devices, use DAQ::
# ,
where
# is the device number.
For NI-DAQmx devices, the device name is
assigned by Measurement & Automation
Explorer (MAX). Optionally, for all devices
you can use an IVI logical name.
ViBoolean IDQuery NIDMM_VAL_TRUE
NIDMM_VAL_FALSE
ViBoolean resetDevice NIDMM_VAL_TRUE
NIDMM_VAL_FALSE
ViString Option String Simulate = 0, RangeCheck = 1
QueryInstrStatus = 1, Cache = 1
ViSession* vi Reference to new session handle
niDMM Initialize with Options
(niDMM_InitWithOptions)
Creates a new session to the instrument and optionally sets the initial state of
session properties.
niDMM Initialize2
(niDMM_init)
Creates a new session to the instrument.
™
1 In LabWindows™/CVI™, C, and C++, constant names such as NIDMM_VAL_TRUE and
NIDMM_VAL_AUTO_ZERO_ON refer to the use of #defines in your program. In LabVIEW, these constants
refer to Boolean or ring controls with corresponding entries. For example, NIDMM_VAL_AUTO_ZERO_ON
corresponds to the LabVIEW ring control entry Auto Zero On. Refer to LabVIEW Help (Show Help) for
more details.
2 Function name for LabWindows/CVI, C, C++, and Visual Basic.
322614f.qxp 11/23/2004 10:13 AM Page 1