Agilent Technologies Agilent E5250A - Manual (Page 246)

8-22 Agilent E5250A User’s Guide, Edition 11
VXIplug&play Driver
Driver Functions
hpe5250a_error_message
This function translates the error return value from an instrument driver function to
a readable string.
Syntax ViStatus _VI_FUNC hpe5250a_error_message(ViSession vi, ViStatus
error_number, ViChar _VI_FAR message[ ] );
Parameters vi Instrument handle returned from hpe5250a_init( ).
error_number Error return value from the driver function.
message[ ] Error message string. This is limited to 256 characters.
hpe5250a_error_query
This function returns the error numbers and corresponding error messages in the
error queue of a instrument. See Chapter 11 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
hpe5250a_errorQueryDetect function.
Syntax ViStatus _VI_FUNC hpe5250a_error_query(ViSession vi, ViPInt32 error_number,
ViChar _VI_FAR error_message[ ] );
Parameters vi Instrument handle returned from hpe5250a_init( ).
error_number Instrument’s error code.
error_message[ ] Instrument’s error message. This is limited to 256 characters.