lv-linkpy

a python interface to remote LabVIEW controls.
Python version above 3.6 is required.

This package depends on Pykit for LabVIEW, a LabVIEW addon. For more information, please see Pykit for LabVIEW documentation.

Installation

• pip install lv-linkpy

Register the control on LabVIEW

Usage

Create a session

from lvlinkpy import Session
s = Session(1919)

Check control references

s.print_control_info()

This code will print all control references outline which are registered on LabVIEW.

Get control value

User can get the value from the name of the control. Suppose there is a control called "Boolean" in the LabVIEW.

print(s.get_value("Boolean"))

If the control name is incorrectly given, it will raise an error.

s.get_value("fdzggZWSdgs")

Set control value

User can set the value by the name of the control. Suppose there is a control called "Boolean" in the LabVIEW, this code will set the control value to "True".

s.set_value(valueName="Boolean", value=True)

This package will perform type check before send to LabVIEW. So, If user send a string to a bool control, it will raise an error.

However, ignore_check=True can avoid type check on python. It may lead an error on LabVIEW.

s.set_value(valueName="Boolean", value="string")
s.set_value(valueName="Boolean", value="string", ignore_check=True)

mechaction=True argument can activate mechanical actions of the control. (for example firing an event case)

s.set_value(valueName="Boolean", value=True, mechaction=True)

Notice that, a button-like latch action is not supported. If you want to activate an event case of a button, you can add a hidden boolean to the target event case structure on LabVIEW.