IviSpecAn Interchangeability
The IviSpecAn class driver performs interchangeability checking when the IVISPECAN_ATTR_INTERCHANGE_CHECK property is set to VI_TRUE and you call one of the following VIs: IviSpecAn_Initiate and IviSpecAn_ReadYTrace.
In addition to the general interchangeability checking rules, the IviSpecAn class defines additional rules and exceptions for the following capability groups:
| IviSpecAn Marker |
If the Marker Enabled property is set to False for a particular marker, then the Marker Position, Marker Trace, Marker Frequency Counter Enabled, Marker Frequency Counter Resolution, and Signal Track Enabled properties need not be in a user specified state for that marker. |
| If the Marker Enabled property is set to False for all markers, then the Marker Threshold and Peak Excursion properties need not be in a user specified state. | |
| Marker Frequency Counter Resolution property need not be in a user specified state for that marker. | |
| IviSpecAn ExternalTrigger |
The properties of this extension group must be in a user specified state if and only if the Trigger Source property is set to External. |
| IviSpecAn VideoTrigger |
The properties of this extension group must be in a user specified state if and only if the Trigger Source property is set to Video. |
| IviSpecAn ExternalMixing |
If the External Mixer Enabled property is set to False, then all remaining group properties need not be in a user specified state. |
| If the External Mixer Bias Enabled property is set to False, then the External Mixer Bias and External Mixer Bias Limit properties need not be in a user specified state. |
The IviSpecAn class does not define additional interchangeability rules or exceptions for the following extension capability groups:
| IviSpecAnMultiTrace | IviSpecAnTrigger | IviSpecAnDisplay |
| IviSpecAnMarkerType | IviSpecAnDeltaMarker | IviSpecAnPreselector |