# -*- coding: utf-8 -*-
"""
Created on Fri Oct 30 09:32:33 2020
@author: black
"""
from opcua import Client, ua
import datetime
url = "opc.tcp://192.168.2.113:4048"
#url = "opc.tcp://192.168.20.20:4840"
client = Client(url)
client.session_timeout = 20000
client.connect()
print(f"Connected: {url}")
node = client.get_node('ns=2;i=2')
print("before: ", node.get_value())
value = node.get_value()
new_value = value + 10
node.set_value(ua.DataValue(ua.Variant(new_value, ua.VariantType.Int16)))
print("after: ", node.get_value())
node = client.get_node('ns=2;i=3')
print("before: ", node.get_value())
value = node.get_value()
new_value = value + 10
node.set_value(ua.DataValue(ua.Variant(new_value, ua.VariantType.Int16)))
print("after: ", node.get_value())
import sys
sys.path.insert(0, "..")
import logging
from IPython import embed
from opcua import Client
if __name__ == "__main__":
logging.basicConfig(level=logging.DEBUG)
client = Client("opc.tcp://localhost:53530/OPCUA/SimulationServer/")
client.set_security_string(
"Basic256Sha256,Sign,certificate-example.der,private-key-example.pem")
try:
client.application_uri = "urn:example.org:FreeOpcUa:python-opcua"
client.secure_channel_timeout = 10000
client.session_timeout = 10000
client.connect()
root = client.get_root_node()
objects = client.get_objects_node()
print("childs og objects are: ", objects.get_children())
embed()
finally:
client.disconnect()