Agilent 4155C/4156C VXIplug&play Driver User’s Guide, Edition 4 2-17
Driver Function Reference
hp4156b_cmd
hp4156b_cmd
This function passes the cmd_str string to the instrument. Must be a NULL
terminated C string.
Syntax ViStatus _VI_FUNC hp4156b_cmd(ViSession vi, ViString cmd_str);
Parameters vi Instrument handle returned from hp4156b_init( ).
cmd_str Instrument command (cannot exceed 256 bytes in length).
Example
ViSession vi;
ViStatus ret;
ret = hp4156b_cmd(vi, "AB"); /* sends the AB command */
hp4156b_cmdData_Q
This function passes the cmd_str string to the instrument. This entry point will wait
for a response which may be any data. You specify the cmd_str and size parameters,
and get result[ ].
Syntax ViStatus _VI_FUNC hp4156b_cmdData_Q(ViSession vi, ViString cmd_str,
ViInt32 size, ViChar _VI_FAR result[ ]);
Parameters vi Instrument handle returned from hp4156b_init( ).
cmd_str Instrument command (cannot exceed 256 bytes in length).
size Length of result in bytes. 2 to 32767.
result[ ] Response from instrument.
hp4156b_cmdInt
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 integer in value. Note that either
an Int16 or 32 can be passed as the Int16 will be promoted.
Syntax ViStatus _VI_FUNC hp4156b_cmdInt(ViSession vi, ViString cmd_str,
ViInt32 value);
Parameters vi Instrument handle returned from hp4156b_init( ).
cmd_str Instrument command (cannot exceed 256 bytes in length).
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