AnalogMultiEdgeStartTrigger Class
- Updated2023-02-21
- 4 minute(s) read
Provides properties for configuring analog multi-edge start triggers.
Inheritance Hierarchy
SystemObject
SystemMarshalByRefObject
NationalInstruments.DAQmxAnalogMultiEdgeStartTrigger
SystemMarshalByRefObject
NationalInstruments.DAQmxAnalogMultiEdgeStartTrigger
Namespace: NationalInstruments.DAQmx
Assembly: NationalInstruments.DAQmx (in NationalInstruments.DAQmx.dll) Version: 20.7.45.49302
Syntax
public class AnalogMultiEdgeStartTrigger : MarshalByRefObject, IFilteredTypeDescriptor
Public Class AnalogMultiEdgeStartTrigger Inherits MarshalByRefObject Implements IFilteredTypeDescriptor
The AnalogMultiEdgeStartTrigger type exposes the following members.
Properties
| Name | Description | |
|---|---|---|
 | Couplings | Specifies an array that describes the couplings for the corresponding source signal of the trigger if the source is a terminal rather than a virtual channel. Each element of the array corresponds to a source in Start.AnlgMultiEdge.Srcs and an element in each of the other Analog Multi Edge property arrays, if they are not empty. |
| Hystereses | Specifies an array of hysteresis levels in the units of the measurement or generation. If the corresponding element of Start.AnlgMultiEdge.Slopes is Rising, the trigger does not deassert until the source signal passes below the corresponding element of Start.AnlgMultiEdge.Lvls minus the hysteresis. If Start.AnlgEdge.Slope is Falling, the trigger does not deassert until the source signal passes above Start.AnlgEdge.Lvl plus the hysteresis. Hysteresis is always enabled. Set this property to a non-zero value to use hysteresis. Each element of the array corresponds to a source in Start.AnlgMultiEdge.Srcs and an element in each of the other Analog Multi Edge property arrays, if they are not empty. |
| Levels | Specifies an array of thresholds in the units of the measurement or generation to start acquiring or generating samples. Each element of the array corresponds to a source in Start.AnlgMultiEdge.Srcs and an element in each of the other Analog Multi Edge property arrays, if they are not empty. |
| Slopes | Specifies an array of slopes on which to trigger task to start generating or acquiring samples. Each element of the array corresponds to a source in Start.AnlgMultiEdge.Srcs and an element in each of the other Analog Multi Edge property arrays, if they are not empty. |
| Sources | Specifies a list and/or range of analog sources that are going to be used for Analog triggering. Each source corresponds to an element in each of the Analog Multi Edge property arrays, if they are not empty. |
Methods
| Name | Description | |
|---|---|---|
 | CreateObjRef | Creates an object that contains all the relevant information required to generate a proxy used to communicate with a remote object. (Inherited from MarshalByRefObject.) |
| Equals | Determines whether the specified object is equal to the current object. (Inherited from Object.) |
 | Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
| GetHashCode | Serves as the default hash function. (Inherited from Object.) |
| GetLifetimeService | Retrieves the current lifetime service object that controls the lifetime policy for this instance. (Inherited from MarshalByRefObject.) |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| InitializeLifetimeService | Obtains a lifetime service object to control the lifetime policy for this instance. (Inherited from MarshalByRefObject.) |
| MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
| MemberwiseClone(Boolean) | Creates a shallow copy of the current MarshalByRefObject object. (Inherited from MarshalByRefObject.) |
| ToString | Returns a string representation of the object. (Overrides ObjectToString.) |
Remarks
Use this class to configure the task to start acquiring or generating samples when configured signals cross the respective levels you specify. To configure the task to use analog multi-edge reference triggering, call ConfigureAnalogMultiEdgeTrigger(String, AnalogMultiEdgeStartTriggerSlope, Double). To obtain a reference to an instance of this class, use AnalogMultiEdge.
 Tip |
|---|
| Example applications are located in the Public Documents\National Instruments\NI-DAQ\Examples\DotNET4.x directory or in the Start menu at National InstrumentsNI-DAQmxNI-DAQmx Examples. |
Thread Safety
Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.