我想知道是否可以从OPC UA客户端向服务器发送数据。我有一台安装了OPC UA服务器的Windows 10 PC和一些用作客户端的树莓派。
我已经编写了Python代码将数据从服务器发送到客户端。现在,我想将来自树莓派客户端的数据发送到Windows 10 PC上的服务器。 这能做到吗?还是我必须在树莓派上设置服务器,在Windows 10 PC上设置客户端?
这是server.py
文件:
from opcua import Server
from random import randint
import datetime
import time
server = Server()
url = "opc.tcp://131.246.76.240:4840"
server.set_endpoint(url)
name = "OPCUA_SIMULATION_SERVER"
addspace = server.register_namespace(name)
node = server.get_objects_node()
Param = node.add_object(addspace, "Parameters")
Temp=Param.add_variable(addspace, "Temperature", 0)
Press=Param.add_variable(addspace, "Pressure", 0)
Time=Param.add_variable(addspace, "Time", 0)
Temp.set_writable()
Press.set_writable()
Time.set_writable()
server.start()
print("Server started at {}".format(url))
while True:
Temperature = randint(10, 50)
Pressure = randint(200, 999)
TIME = datetime.datetime.now()
print(Temperature, Pressure, TIME)
Temp.set_value(Temperature)
Press.set_value(Pressure)
Time.set_value(TIME)
time.sleep(1)
这是
client.py
文件:import time
from opcua import Client
url = "opc.tcp://131.246.76.240:4840"
client= Client(url)
client.connect()
print("Client Connected")
while True:
Temp = client.get_node("ns=2;i=2")
Temperature = Temp.get_value()
print(Temperature)
Press = client.get_node("ns=2;i=3")
Pressure = Press.get_value()
print(Pressure)
TIME = client.get_node("ns=2;i=4")
Time = TIME.get_value()
print(Time)
time.sleep(1)