Agilent Technologies B2201A Guia do Utilizador descarregar pdf (Página 200)

6-14 Agilent B2200 User’s Guide, Edition 4

VXIplug&play Driver

Driver Functions

agb220xa_cmdReal

This function passes the cmd_str string to the instrument. This entry point passes the

string in cmd_str followed by a space and then the real in value. Note that either an

Real32 or 64 can be passed as the Real32 will be promoted.

Syntax ViStatus _VI_FUNC agb220xa_cmdReal(ViSession vi, ViString cmd_str,

ViReal64 value);

Parameters vi Instrument handle returned from agb220xa_init( ).

cmd_str Instrument command (cannot exceed 256 bytes in length).

value Parameter for command. -1E+300 to 1E+300.

agb220xa_cmdReal64Arr_Q

This function passes the cmd_str string to the instrument. This command expects a

response that is a definite arbitrary block of 64 bit real. You specify the cmd_str and

size parameters, and get result[ ] and count.

Syntax ViStatus _VI_FUNC agb220xa_cmdReal64Arr_Q(ViSession vi, ViString cmd_str,

ViInt32 size, ViReal64_VI_FAR result[ ], ViPInt32 count);

Parameters vi Instrument handle returned from agb220xa_init( ).

cmd_str Instrument command (cannot exceed 256 bytes in length).

size Size of result[ ] (number of items in the array).

1 to 2147483647.

result[ ] Response from instrument.

count Count of valid items in result[ ].

agb220xa_cmdReal64_Q

This function passes the cmd_str string to the instrument. This command expects a

response that can be returned as a 64 bit real.

Syntax ViStatus _VI_FUNC agb220xa_cmdReal64_Q(ViSession vi, ViString cmd_str,

ViPReal64 result);

Parameters vi Instrument handle returned from agb220xa_init( ).

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