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Initiate

IVI Compliance Package

IviDmm Initiate

IviDmm Base Capability Group

This VI initiates a measurement. After you call this VI, the DMM leaves the Idle state and waits for a trigger. Details.

instrument handle The instrument handle that you obtain from the IviDmm Initialize or IviDmm Initialize With Options VI.
error in (no error) The error in cluster can accept error information wired from VIs previously called. Use this information to decide if any functionality should be bypassed in the event of errors from other VIs.

The pop-up option Explain Error (or Explain Warning) gives more information about the error displayed.

instrument handle out The instrument handle that you obtain from the IviDmm Initialize or IviDmm Initialize With Options VI.
error out The error out cluster passes error or warning information out of a VI to be used by other VIs.

The pop-up option Explain Error (or Explain Warning) gives more information about the error displayed.

IviDmm Initiate Details

This VI applies default values to properties that have not been set by you under the following conditions:

  1. If you have not set the value of any property in the IviDmmMultiPoint extension group, the VI sets the IviDmm Sample Count [MP] and IviDmm Trigger Count [MP] properties to 1.
  2. If you have not set the value of the IviDmm Auto Zero [AZ] property, the VI sets the value of this property to IVIDMM_VAL_AUTO_ZERO_OFF (0).
Notes
  1. This VI does not check the instrument status. Typically, you call this VI only in a sequence of calls to other low-level driver VIs. The sequence performs one operation. You use the low-level VIs to optimize one or more aspects of interaction with the instrument. If you want to check the instrument status, call the IviDmm Error-Query VI at the conclusion of the sequence.
  2. This VI performs interchangeability checking when the IviDmm Interchange Check property is set to TRUE. Use NI I/O Trace to view interchangeability warnings. Alternately, you may use the IviDmm Get Next Interchange Warning VI to retrieve interchangeability warnings. For more information about interchangeability checking, refer to the IviDmm Interchange Check property.
  3. The class driver initiates a simulated measurement when this VI is called and the IviDmm Simulate property is set to TRUE and the IviDmm Use Specific Simulation property is set to FALSE. For information on how to configure a simulated measurement, refer to National Instruments IVI Driver Help»IVI Class Driver Simulation Overview.