vcCore - Module

"""Import module with an alias name."""
import vcCore as vc

"""This script shows how to wait a multi-signal condition to be true. 
Note that the condition is evaluated when signal values update or when the evaluation 
is manually triggered with the evaluateConditions() method from vcCore.
"""
import vcCore as vc
comp = vc.getComponent()
sensor_sig_1 = comp.findBehavior("SensorSignal_1")
sensor_sig_2 = comp.findBehavior("SensorSignal_2")
  
async def OnRun():
  await vc.condition(lambda trigger: sensor_sig_1.Value and sensor_sig_2.Value) # "trigger" argument 
  # stores the object that triggered the condition and can be used inside the condition evaluation 
  print ("Sensor signals true")

""" The script shows how to wait for change events from a pool of events.
The events are first converted as vcTasks. """
import vcCore as vc
async def OnRun():
  comp = vc.getComponent()
  signal_1 = comp.findBehavior("BooleanSignal_1")
  signal_2 = comp.findBehavior("BooleanSignal_2")
  signal_3 = comp.findBehavior("BooleanSignal_3")
  e1_signal = comp.findBehavior("EmergencySignal_1")
  e1_time = 60 # seconds
  process_time = 10 # seconds
  while True:
    # recreate the awaitable tasks for the signals before the anyTask call
    t1 = signal_1.OnSignal.wait() # Converts OnSignal event to an awaitable task
    t2 = signal_2.OnSignal.wait()
    t3 = signal_3.OnSignal.wait()
    e1 = e1_signal.OnSignal.wait()
    
    await vc.anyTask([t1,t2,t3,e1]) # wait for any of the awaitable tasks to complete
    if e1_signal.Value:
      # emergency routine
      vc.delay(e1_time)
    if signal_1.Value == True and signal_2.Value and signal_3.Value:                               
      # start process
      vc.delay(process_time)