GW Instek APS-1102 LabVIEW Driver User Manual - Manual (Page 15)

2.4 VISA Initialization
2-7
The sync signal source setting is either LINE (line synchronization) or EXT (external synchronization).
However, when output is ON, the sync signal source cannot be changed. ([1, “Invalid with output on”]
error occurs.)
Unless the mode is AC-SYNC or AC+DC-SYNC mode, the sync signal source setting cannot be set.
([3, “Invalid in this mode”] error occurs.)
Signal
This sets the synchronization signal source. The default setting is “Line (False)”.
Query Signal
When Read=True, outputs the synchronization signal source set for the APS-1102. When
Read=False, “space” is set.
GW APS-1102 SOUR Phas.vi
This sets the phase at the start of output. However, when output is on, the phase setting cannot be
changed. ([1,"Invalid with output on"] error occurs.)
When in AC-EXT or AC+DC-EXT mode, the output waveform setting cannot be set. ([3,"Invalid in
this mode"] error occurs.)
Phase [deg]
This sets the phase at the start of output. The default setting is “0.0”.
Output [deg]
When Read = True, outputs the phase at the start of output set for the APS-1102. When
Read = False, “999.9” is set.
GW APS-1102 SOUR Seq Cond.vi
This returns the sequence status. The response message is 0 (Idle mode), 1 (Run mode), or 2 (Hold
mode).
Sequence Condition
This outputs the sequence status with 0 to 2.
GW APS-1102 SOUR Seq Cst.vi
This returns the step number being executed. –1 is returned in the Idle mode.