Artifex LDD100-F Series, Original Operating Instructions, Page: 70 / 72

LDD100 Operating Instructions
70 / 72
11.5 Documentation for LabVIEW
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LDD100Com.vi
The LDD100 is delivered with a fully functional demo virtual instrument (VI). In order to
implement the LDD100 within a larger LabView programme framework, it is recommended
to use the supplied VI as the starting point. The main programme comprises the Demo.vi
(graphical user interface), further Vis are included for controlling the LDD100. The software
drivers must be installed prior to use of the Demo.vi.
In order to communicate with the LDD100, a connection with the PC must occur. This is
handled by the LDD100_COM.dll. All of the VIs use the functions of this dll-file. The
parameters are described in detail in the separate document describing the LDD100_COM.dll.
In order to control the LDD100, various sub-VIs are provided. Their individual function is
described in their respective file names. Thus GetMaximumCurrent.vi reads out the maximum
current of the instrument.
Some VIs have an input and an output value for the same parameter. In these cases, the
upload values are checked within the function and corrected as required. For example, if the
uploaded current value is not valid, it will be automatically corrected to the nearest valid
value. The result can be checked via the output value (see SetParameter.vi).
Figure 22: Connection Diagramme for the SetParameter.vi
All parameters and their details are described in detail in 11.2 “Parameter Upload”, pp63.
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LabVIEW is a registered Trademark of the National Instruments Corporation
Trigger Mode
Continous Mode
Period (µs)
Pulse width (ns)
Minimum and pulse current (mA)
Maximum current (mA)
Current steps
Bias current (mA)
Number of cycles
Cycling mode
Continous mode out
Trigger mode out
Period out(µs)
Pulse width out (ns)
Maximum current (mA)
Current steps
Bias current (mA)
Number of cycles
Cycling mode
status
Min. and pulse current out