opcua example with asyncua

import asyncio
import pprint
from asyncua import Client
from asyncua.ua import DataValue


def make_node_path(namespace, path):
    parts = ".".join(f'"{part}"' for part in path.split("."))
    return f"ns={namespace};s={parts}"


async def main(paths):
    values = {}
    async with Client("opc.tcp://192.168.10.10:4840/") as client:
        ns = await client.get_namespace_index("http://www.siemens.com/simatic-s7-opcua")
        for path in paths:
            node_path = make_node_path(ns, path)
            node = client.get_node(node_path)
            values[node_path] = await node.get_value()
    return values


if __name__ == "__main__":
    nodes = ["DataExchange.operator_panel.S1", "I0", "I1", "I2"]
    coro = main(nodes)
    result = asyncio.run(coro)
    pprint.pprint(result, sort_dicts=False, compact=True, indent=4)