idx = server.register_namespace(uri)
# get Objects node, this is where we should put our nodes
objects = server.get_objects_node()
# populating our address space
myobj = objects.add_object(idx, "MyObject")
myvar = myobj.add_variable(idx, "MyVariable", 6.7)
myvar.set_writable() # Set MyVariable to be writable by clients
temp_sensor = objects.add_object(nodeid=idx, bname='Temperature')
temp_sensor_interval = temp_sensor.add_variable(idx, "TempInterval", 5)
temp_sensor_data = temp_sensor.add_variable(idx, "TempData",
mock_data.get_temp())
temp_sensor_interval.set_writable()
# starting!
server.start()
server.historize_node_data_change(myvar, period=None, count=100)
try:
count = 0
while True:
nextInterval = float(temp_sensor_interval.get_value())
time.sleep(nextInterval)
count += 0.1
myvar.set_value(count)
temp_sensor_data.set_value(mock_data.get_temp())
finally:
# close connection, remove subcsriptions, etc
server.stop()
uri = "http://examples.freeopcua.github.io"
idx = server.register_namespace(uri)
# get Objects node, this is where we should put our custom stuff
objects = server.get_objects_node()
# populating our address space
myobj = objects.add_object(idx, "MyObject")
myvar = myobj.add_variable(idx, "MyVariable", ua.Variant(0, ua.VariantType.Double))
myvar.set_writable() # Set MyVariable to be writable by clients
# Configure server to use sqlite as history database (default is a simple memory dict)
server.iserver.history_manager.set_storage(HistorySQLite("my_datavalue_history.sql"))
# starting!
server.start()
# enable data change history for this particular node, must be called after start since it uses subscription
server.historize_node_data_change(myvar, period=None, count=100)
try:
count = 0
while True:
time.sleep(1)
count += 0.1
myvar.set_value(math.sin(count))
finally:
# close connection, remove subscriptions, etc
server.stop()
# setup namespace
uri = "http://examples.io"# 创建名称空间（这不是必须的，但是这是一种规范）
idx = server.register_namespace(uri) #注册名称空间
objs = server.get_objects_node() #获取服务器节点对象。
myobj = objs.add_object(idx, "Devices") # 向节点对象填充地址节点
myobj2 = myobj.add_variable(idx,"iii",ua.Variant(20,ua.VariantType.Int32)) #向Devices对象添加tag
myvar = myobj.add_variable(idx,"humidity",ua.Variant(0,ua.VariantType.Int32)) #向Devices对象添加tag
myvar2 = myvar.add_variable(idx,"[hhhh]",10)
myvar.set_writable() #将myvar设置为客户端可写的
myvar2.set_writable() #客户端可写的
server.start() #启动服务
server.historize_node_data_change(myvar, period=None, count=100) #将myvar标签设置为可变的历史数据
server.subscribe_server_callback(CallbackType.ItemSubscriptionCreated, create_monitored_items) #客户端连接成功后的回调
server.subscribe_server_callback(CallbackType.ItemSubscriptionModified, modify_monitored_items) #修改订阅时回调
server.subscribe_server_callback(CallbackType.ItemSubscriptionDeleted, delete_monitored_items) #删除订阅的时候回调
try:
import time
count=0
while True:
time.sleep(3)
value=random.randint(100,1000)
myvar.set_value(value)
count += 1
finally:
server.stop()
