IviPwrMeter Initiate
IviPwrMeterBase Capability Group
This VI initiates a measurement on all enabled channels. When this VI executes, the power meter leaves the Idle state and takes a measurement on all enabled channels. Use the IviPwrMeter Fetch VI or IviPwrMeter Fetch Channel [CH] VI to obtain the result of the measurements.
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 IviPwrMeter Error-Query VI at the conclusion of the sequence.
(2) This VI performs interchangeability checking when the IviPwrMeter>>Inherent IVI Settings>>User Options>>Interchange Check property is set to TRUE. You may use the NI I/O Trace utility to view interchangeability warnings. Alternatively, you may use the IviPwrMeter Get Next Interchange Warning VI to retrieve interchangeability warnings. For information on interchangeability checking, refer to the online help manual.
 |
instrument handle The instrument handle that you obtain from the IviPwrMeter Initialize or IviPwrMeter Initialize With Options VIs. |
 |
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 IviPwrMeter Initialize or IviPwrMeter Initialize With Options VIs. |
 |
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. |