Table Of Contents

IviDmm Configure Multi-Point [MP] (G Dataflow)

Last Modified: October 24, 2017

Configures the properties that affect multi-point measurements. These properties are the trigger count, sample count, sample trigger and sample interval.

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sample count

Pass the number of measurements you want the DMM to take each time it receives a trigger. The driver sets the IviDmm>>Multi-Point Acquisition>>Sample Count [MP] property to this value.

Default: 1

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trigger count

Pass the number of triggers you want the DMM to receive before returning to the Idle state. The driver sets the IviDmm>>Multi-Point Acquisition>>Trigger Count [MP] property to this value.

Default: 1

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sample trigger

Pass the type of sample trigger you want to use. The driver sets the IviDmm>Multi-Point Acquisition>Sample Trigger [MP] property to this value. When the DMM takes a measurement and the Sample Count parameter is greater than 1, the DMM does not take the next measurement until the event you specify in the Sample Trigger parameter occurs.

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Note  

(1) IVIDMM_VAL_IMMEDIATE - The DMM takes the next measurement immediately. The DMM does not wait for a trigger of any kind. (2) IVIDMM_VAL_EXTERNAL - The DMM takes the next measurement when a trigger occurs on the external trigger input. (3) IVIDMM_VAL_SOFTWARE_TRIG - The DMM takes the next measurement when you call the Send Software Trigger [SWT] VI. (4) IVIDMM_VAL_INTERVAL - The DMM takes the next measurement after waiting the length of time you specify in the Sample Interval parameter. (5) This parameter is ignored if the value of the 'Sample Count' parameter is 1.

Valid Values

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sample interval

Pass the length of time you want the DMM to wait between samples. Express this value in seconds. The driver sets the IviDmm>Multi-Point Acquisition>Sample Interval [MP] property to this value. If the Sample Count parameter is greater than 1 and the Sample Trigger parameter is set to IVIDMM_VAL_INTERVAL, the DMM waits between measurements for the length of time you specify with this parameter. Otherwise, this property does not affect the behavior of the instrument.

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Note  

(1) This parameter is ignored if the value of the 'Sample Count' parameter is 1. (2) This parameter is ignored if the value of the 'Sample Trigger' parameter is not IVIDMM_VAL_INTERVAL.

Default: 0.0

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instrument handle out

The instrument handle that you obtain from the IviDmm Initialize Node. The handle identifies a particular instrument session.

Default: None

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instrument handle

The instrument handle that you obtain from the IviDmm Initialize Node. The handle identifies a particular instrument session.

Default: None

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error out

Error information.

The node produces this output according to standard error behavior.

Standard Error Behavior

Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.

error in does not contain an error error in contains an error
If no error occurred before the node runs, the node begins execution normally.

If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.

If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.
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error in

Error conditions that occur before this node runs.

The node responds to this input according to standard error behavior.

Standard Error Behavior

Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.

error in does not contain an error error in contains an error
If no error occurred before the node runs, the node begins execution normally.

If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.

If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.

Default: No error

Extension Group

This node is part of the IviDmmMultiPoint [MP] extension group.

Where This Node Can Run:

Desktop OS: Windows

FPGA: Not supported

Web Server: Not supported in VIs that run in a web application


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