AnalogEdgeReferenceTrigger Class
- Updated2023-02-21
- 4 minute(s) read
AnalogEdgeReferenceTrigger Class
Contains properties to configure analog edgereference triggers.
Inheritance Hierarchy
SystemObject
SystemMarshalByRefObject
NationalInstruments.DAQmxAnalogEdgeReferenceTrigger
SystemMarshalByRefObject
NationalInstruments.DAQmxAnalogEdgeReferenceTrigger
Namespace: NationalInstruments.DAQmx
Assembly: NationalInstruments.DAQmx (in NationalInstruments.DAQmx.dll) Version: 20.7.40.49302
Syntax
public class AnalogEdgeReferenceTrigger : MarshalByRefObject, IFilteredTypeDescriptor
Public Class AnalogEdgeReferenceTrigger Inherits MarshalByRefObject Implements IFilteredTypeDescriptor
The AnalogEdgeReferenceTrigger type exposes the following members.
Properties
| Name | Description | |
|---|---|---|
 | Coupling | Specifies the coupling for the source signal of the trigger if the source is a terminal rather than a virtual channel. |
| DigitalFilterEnable | Specifies whether to apply a digital filter to the digital output of the analog triggering circuitry (the Analog Comparison Event). When enabled, the analog signal must stay above or below the trigger level for the minimum pulse width before being recognized. Use filtering for noisy trigger signals that transition in and out of the hysteresis window rapidly. |
| DigitalFilterMinimumPulseWidth | Specifies in seconds the minimum pulse width thefilter recognizes. |
| DigitalFilterTimebaseRate | Specifies in hertz the rate of the digital filter timebase. NI-DAQmx uses this value to compute settings for the filter. |
| DigitalFilterTimebaseSource | Specifies the terminal of the signal to use as the timebase of the digital filter. |
| DigitalSynchronizationEnable | Specifies whether to synchronize recognition of transitions in the signal to the internal timebase of the device. |
| Hysteresis | Specifies a hysteresis level in the units of the measurement. If Slope is Rising, the trigger does not deassert until the source signal passes below Level minus the hysteresis. If Slope is Falling, the trigger does not deassert until the source signal passes above Level plus the hysteresis. Hysteresis is always enabled. Set this property to a non-zero value to use hysteresis. |
| Level | Specifies in the units of the measurement the threshold at which the Reference Trigger occurs. Use Slope to specify on which slope to trigger at this threshold. |
| Slope | Specifies on which slope of the source signal the Reference Trigger occurs. |
| Source | Specifies the name of a virtual channel or terminal where there is an analog signal to use as the source of the Reference Trigger. |
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 a hash function for a particular type. (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
 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.