Anfatec eLockIn 203, Manual

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Result for „GET /setup/lockin.ini CR
CR“
4.5.2 DLL
BASED ACCESS
BY
L
AB
V
IEW
eLockin.vi hierarchie
The main program eLockin.vi contains a sequence in
three steps and calls two sub-VI's: Ref_eLockin.vi and
Get_eLockin.vi.
During run, it calls a three-step sequence:
●
Step 0: eLockin.vi starts the communication
with the lockin. The IP address is a value entry
in the diagram used as input for the library
function call „__Init“. Then, the system waits for
500 ms to let the
eLockIn
initialize.
●
Step 1: The Sub-VI „Ref_eLockin.vi“ is called to set reference voltage and
reference frequency. The other two functions of this Sub-VI, phase and
harmonic, are not used here.
●
Step 2: A curve diagram is drawn with 100 values, which are taken from the
Sub-VI „Get_eLockin.vi“, which uses the function call of „__GetLockInData2 for
the channel number 1. Between the single data, 100 ms delay time is given.
The example does not use all provided DLL-functions, but it shows how to implement
them in own applications.
Usage of the LabView control
To start LabView, double-click on the icon or program eLockin.vi.
The main program shows a curve diagram and two input windows for
the reference amplitude and reference frequency:
The entered values are overtaken, when the start knob is applied.
The same knob starts the acquisition of data in the curve diagram for
one time cycle.
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