pipx40_attenGetAttenuation

ViStatus pipx40_attenGetAttenuation (ViSession instrumentHandle, ViUInt32 subunitNumber, float *attenuation);

Purpose

Obtains a programmable attenuator sub-unit's attenuation setting.

Parameters

Input
Name	Type	Description
instrumentHandle	ViSession	Instrument handle obtained by the pipx40_init call used to open the card.
subunitNumber	ViUInt32	The number of the sub-unit to access. Valid Values: must correspond to a programmable attenuator sub-unit of the chosen card
Output
Name	Type	Description
attenuation	float (passed by reference)	Variable to receive the attenuation setting, in dB.

Return Value

Name	Type	Description
status	ViStatus	A numeric code indicating the success or failure of the operation. VI_SUCCESS = Successful operation. Negative values are error codes and positive values are warnings. To get a description of an error, pass the error code to pipx40_error_message.

References

Programmable RF Attenuator
Pickering Interfaces PXI VISA
Alphabetical Function Index
Hierarchical Function Index