# setup our own namespace
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
myfolder = objects.add_folder(idx, "myEmptyFolder")
myobj = objects.add_object(idx, "MyObject")
myvar = myobj.add_variable(idx, "MyVariable", 6.7)
myvar.set_writable() # Set MyVariable to be writable by clients
# starting!
server.start()
# Create Callback for item event
server.subscribe_server_callback(CallbackType.ItemSubscriptionCreated, create_monitored_items)
server.subscribe_server_callback(CallbackType.ItemSubscriptionModified, modify_monitored_items)
server.subscribe_server_callback(CallbackType.ItemSubscriptionDeleted, delete_monitored_items)
print("Available loggers are: ", logging.Logger.manager.loggerDict.keys())
try:
# enable following if you want to subscribe to nodes on server side
embed()
finally:
server.stop()
# setup our own namespace
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
myfolder = objects.add_folder(idx, "myEmptyFolder")
myobj = objects.add_object(idx, "MyObject")
myvar = myobj.add_variable(idx, "MyVariable", 6.7)
myvar.set_writable() # Set MyVariable to be writable by clients
# starting!
server.start()
# Create Callback for item event
server.subscribe_server_callback(CallbackType.ItemSubscriptionCreated,
create_monitored_items)
server.subscribe_server_callback(CallbackType.ItemSubscriptionModified,
modify_monitored_items)
server.subscribe_server_callback(CallbackType.ItemSubscriptionDeleted,
delete_monitored_items)
print("Available loggers are: ", logging.Logger.manager.loggerDict.keys())
try:
# enable following if you want to subscribe to nodes on server side
embed()
finally:
server.stop()
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()
