io-iopoint.py

""" This sample demonstrates how to use IOPoint objects to read and write network data.
    Shows how to create IOPoint objects for digital outputs and use them to control IO.
    Requires an EtherCAT network with nodes that have digital outputs.
"""
 
from _imports import RapidCode, helpers
 
print("⬤ IO: IOPoint Objects")
 
# get/create the motion controller
creation_params: RapidCode.CreationParameters = helpers.get_creation_parameters()
controller: RapidCode.MotionController = RapidCode.MotionController.Create(creation_params)
helpers.check_errors(controller)
 
NODE_INDEX = 0     # the EtherCAT Node we will be communicating with
OUTPUT_INDEX = 0   # the PDO Index in that Node
 
# create IOPoint for digital output - automatically gets memory index of specified node and output index
output0 = RapidCode.IOPoint.CreateDigitalOutput(controller.NetworkNodeGet(NODE_INDEX), OUTPUT_INDEX)
 
# set the output to false
output0.Set(False)
print(f"Output {OUTPUT_INDEX} set to: False")
 
# wait one sample for the change to take effect
controller.SampleWait(1)
 
# read back the value
output_value = output0.Get()
print(f"Output {OUTPUT_INDEX} value: {output_value}")
 
# set the output to true
output0.Set(True)
print(f"Output {OUTPUT_INDEX} set to: True")
 
controller.SampleWait(1)
output_value = output0.Get()
print(f"Output {OUTPUT_INDEX} value: {output_value}")
 
controller.Delete()