Agilent Technologies Agilent E5250A Podręcznik Użytkownika Pobierz pdf (Strona 36)

2-16 Agilent 4155C/4156C VXIplug&play Driver User’s Guide, Edition 1

Driver Functions

hp4156b_error_message

This function translates the error return value from an instrument driver function to

a readable string.

Syntax ViStatus _VI_FUNC hp4156b_error_message(ViSession vi, ViStatus error_number,

ViChar _VI_FAR message[ ] );

Parameters vi Instrument handle returned from hp4156b_init( ).

error_number Error return value from the driver function.

message[ ] Error message string. This is limited to 256 characters.

hp4156b_error_query

This function returns the error numbers and corresponding error messages in the

error queue of a instrument. See If You Have a Problem manual for a listing of the

instrument error numbers and messages.

Instrument errors may occur when you places the instrument in a bad state such as

sending an invalid sequence of coupled commands. Instrument errors can be

detected by polling. Automatic polling can be accomplished by using the

hp4156b_errorQueryDetect function.

Syntax ViStatus _VI_FUNC hp4156b_error_query(ViSession vi, ViPInt32 error_number,

ViChar _VI_FAR error_message[ ] );

Parameters vi Instrument handle returned from hp4156b_init( ).

error_number Instrument’s error code.

error_message[ ] Instrument’s error message. This is limited to 256 characters.

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Agilent Technologies Agilent E5250A Podręcznik Użytkownika Strona 36