User Manual User guide

APS-1102 LabVIEW Driver Manual

2-8

Sequence Step

This outputs the step number being executed.

GW APS-1102 SOUR Seq Len.vi

This returns the maximum number of sequence steps. 255 is always returned.

Max Step

This outputs the maximum step count.

GW APS-1102 SOUR Seq Coun.vi

This returns the jump times of the step specified by SEQ:STEP. –1 is returned in the Idle mode.

Sequence Count

This returns and outputs the step number being executed.

GW APS-1102 SOUR Seq Delete.vi

This clears the sequence memory. When this command is executed, all sequence step settings are

cleared.

However, the sequence memory contains a separate sequence for each operation mode (AC and

AC+DC) and each output (100 V and 200 V), for a total of four combined sets. When sequence

memory is cleared by this command, only one of these four sets is selected as the memory.

When in AC-EXT, AC-SYNC, AC+DC-EXT or AC+DC-SYNC mode, sequence memory cannot be

cleared. ([3,"Invalid in this mode"] error occurs.)

GW APS-1102 SOUR Seq Epar.vi

This sets the step execution parameters. The target sequence step must be already set by the

SEQ:STEP.

However, the first parameter (DC voltage) and second parameter (DC current operation type) are

valid only during AC+DC mode. When in AC mode, dummy values should be set. A “0” is returned

for each of these parameters when in AC mode.

The unit of the third parameter varies depending on the waveform set by the seventh parameter. For

the sine wave (SIN) and square wave (SQU), it is Vrms, and for the arbitrary wave (ARB) it is Vp-p.