Python 基于OPC UA的对象的Push与pull 事件驱动实现机制

最新推荐文章于 2025-06-30 09:05:12 发布

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最新推荐文章于 2025-06-30 09:05:12 发布 · 置顶 · 1k 阅读

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文章标签：

#Python OPC UA PUSH Pull #Python 编程 #Python OPC UA

OPCUA Server侧Push代码如下：

--------------------------------------------

import logging
import pickle
import random

from opcua import ua, Server

class data_struct:
    def _init_(self,para1,para2,para3):
        self.para1=para1
        self.para2=para2
        self.para3=para3
        ###..................................

if __name__ == "__main__":
#the following is only for debuging
    logging.basicConfig(level=logging.WARN)
    logger = logging.getLogger("opcua.server.internal_subscription")
    logger.setLevel(logging.DEBUG)#logging level of this logger: 10

    server = Server()
    server.set_endpoint("opc.tcp://127.0.0.1:4840/freeopcua/server/")

    # setup  namespace
    uri = "http://examples.io"# this can be any
    idx = server.register_namespace(uri) #register the uri name space in the server
    print("idx is :",idx)
    objs = server.get_objects_node()
    print("obj is: ", objs)
    myobj = objs.add_object(idx, "OT_Object")    # populating our addres