33 lines
973 B
Python
33 lines
973 B
Python
from opcua import ua, Client
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class Py2opcua:
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def __init__(self, url='opc.tcp://192.168.2.99:4840'):
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self.client = Client(url)
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def connect(self):
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try:
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# 连接客户端
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self.client.connect()
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print("opcua服务器连接成功，可以写入")
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return self.client
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except:
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print("opcua服务器连接失败，请检查")
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def write(self, temp_dict):
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temp_dict = temp_dict
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temp_list = list(temp_dict.items())
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for i in range(len(temp_list)):
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# 寻找节点上的变量
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var = self.client.get_node(temp_list[i][0])
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# var.set_value(ua.Variant(1.234, ua.VariantType.Float))
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# 通过set_value写值
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var.set_value(ua.Variant(temp_list[i][1], ua.VariantType.Double))
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print("%s 已写入" % var.get_value())
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def disconnect(self):
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# 断开连接
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self.client.disconnect()
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