User`s guide

2-30 Agilent 4155C/4156C VXIplug&play Driver User’s Guide, Edition 1

Driver Functions

hp4156b_setFilter

This function sets the output filter of the specified channel.

Syntax ViStatus _VI_FUNC hp4156b_setFilter(ViSession vi, ViInt32 channel,

ViInt32 state);

Parameters vi Instrument handle returned from hp4156b_init( ).

channel Channel number of the unit. 1 (SMU1), 2, 3, 4, 5, or 6 (SMU6).

state 0 (Filter OFF) or 1 (Filter ON).

hp4156b_setInteg

This function sets the integration time, and sets the number of samples that are taken

and averaged for the measurement.

Syntax ViStatus _VI_FUNC hp4156b_setInteg(ViSession vi, ViInt32 table, ViReal64 time,

ViInt32 average);

Parameters vi Instrument handle returned from hp4156b_init( ).

table Integration time table. 1 (short), 2 (medium), or 3 (long).

time Integration time. in seconds. 80E-6 to 10.16E-3 for table=1, or

16.7E-3 to 2.0 for table=3. Ignore this parameter for table=2.

average Number of samples for averaging. 1 to 1023, or 0. If you do not

want to change the value from previous value, enter 0.