labview.py

import thread
import win32com.client
import time

labview = win32com.client.Dispatch("Labview.Application")
VI = labview.getvireference(r'C:\path\to\target.vi')


def run_app():
	VI.run()

def get_vi():
	while True:
		print "%s %s" %(str(time.time()), str(VI.getcontrolvalue("HMI_LT_003")))
		time.sleep(5)

try:
	thread.start_new_thread(run_app)
	thread.start_new_thread(get_vi)
except:
	print 'unable to start thread'

while 1:
	pass