NI RF Vector Signal Analyzers (NI-RFSA 18.1) Help

Edition Date: June 2018

Part Number: 372058U-01

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ViStatus niRFSA_GetRelayOperationsCount(ViSession vi, ViConstString channelList, ViInt32 operationsCount[], ViInt32* bufferSize);


Returns an array consisting of all the relay counts for your device. When you call this function and pass a VI_NULL pointer to the operationsCount parameter, bufferSize is populated with the number of relays on the device. When you call this function and specify a value for bufferSize that is greater than or equal to the number of relays, the operationsCount parameter returns the appropriate value.

Supported Devices: PXIe-5603/5605/5606, PXIe-5698


Name Type Description
vi ViSession Identifies your instrument session. vi is obtained from the niRFSA_init or niRFSA_InitWithOptions function.
channelList ViConstString Identifies which channels to apply settings. Specify an empty string as the value of this parameter.
Name Type Description
operationsCount ViInt32[] Specifies the operations count array, when used as an input. You can select VI_NULL or a pointer to a ViInt32 array. VI_NULL is the default. When bufferSize is greater than or equal to the number of relays, operationsCount returns the number of relay operations.
bufferSize ViInt32* Functions as an input or an output. bufferSize receives or returns the number of relays that are on the device.

Return Value

Name Type Description
status ViStatus Returns the status code of this operation. The status code either indicates success or describes an error or warning condition. Examine the status code from each call to an NI-RFSA function to determine if an error has occurred.

To obtain a text description of the status code and additional information about the error condition, call the niRFSA_GetError function. To clear the error information from NI-RFSA, call the niRFSA_ClearError function.

The general meaning of the status code is as follows:

Value Meaning
0 Success
Positive Values Warnings
Negative Values Errors


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