class Servidor_OPCUA:
def __init__(self):
self.server = Server()
self.server.set_endpoint("opc.tcp://localhost:4840/freeopcua/server/")
self.server.set_server_name("Stack IIoT")
self.namespaces = {}
self.objects = self.server.get_objects_node()
# Para agregar un nuevo namespace
def new_namespace(self, uri, namespace, nombre):
idx = self.server.register_namespace(uri)
print('New namespace: {}'.format(idx))
Namespace = namespace(
self.objects, idx,
self.server) # Se declaran todas las variables del nuevo namespace
self.namespaces[nombre] = Namespace
def start(self):
global alarma, valor_alarma, mensaje_alarma
self.server.start()
for nombre, namespace in self.namespaces.items():
namespace.subscripciones()
# Se incia el loop del servidor
try:
while True:
time.sleep(0.1)
for nombre, namespace in self.namespaces.items():
namespace.monitorea_alarma()
finally:
self.server.stop()
class HelloServer:
def __init__(self, endpoint, name, model_filepath):
self.server = Server()
# This need to be imported at the start or else it will overwrite the data
self.server.import_xml(model_filepath)
self.server.set_endpoint(endpoint)
self.server.set_server_name(name)
objects = self.server.get_objects_node()
freeopcua_namespace = self.server.get_namespace_index(
"urn:freeopcua:python:server")
hellower = objects.get_child("0:Hellower")
hellower_say_hello = hellower.get_child("0:SayHello")
self.server.link_method(hellower_say_hello, say_hello_xml)
hellower.add_method(freeopcua_namespace, "SayHello2", say_hello,
[ua.VariantType.Boolean], [ua.VariantType.String])
hellower.add_method(freeopcua_namespace, "SayHelloArray",
say_hello_array, [ua.VariantType.Boolean],
[ua.VariantType.String])
def __enter__(self):
self.server.start()
return self.server
def __exit__(self, exc_type, exc_val, exc_tb):
self.server.stop()
def __init__(self, port=Opcx.DEFAULT_PORT, name='OpcxServer'):
from opcua import Server
server = Server()
server.set_server_name(name)
server.set_endpoint("opc.tcp://0.0.0.0:%d/freeopcua/server/" % port)
self.objix = server.register_namespace(Opcx.DEFAULT_URI)
self.server = server
class HelloServer:
def __init__(self, endpoint, name, model_filepath):
self.server = Server()
# This need to be imported at the start or else it will overwrite the data
self.server.import_xml(model_filepath)
self.server.set_endpoint(endpoint)
self.server.set_server_name(name)
objects = self.server.get_objects_node()
freeopcua_namespace = self.server.get_namespace_index("urn:freeopcua:python:server")
hellower = objects.get_child("0:Hellower")
hellower_say_hello = hellower.get_child("0:SayHello")
self.server.link_method(hellower_say_hello, say_hello_xml)
hellower.add_method(
freeopcua_namespace, "SayHello2", say_hello, [ua.VariantType.Boolean], [ua.VariantType.String])
hellower.add_method(
freeopcua_namespace, "SayHelloArray", say_hello_array, [ua.VariantType.Boolean], [ua.VariantType.String])
def __enter__(self):
self.server.start()
return self.server
def __exit__(self, exc_type, exc_val, exc_tb):
self.server.stop()
class DemoServer:
def __init__(self):
self.server = Server()
self.server.set_endpoint('opc.tcp://0.0.0.0:4840')
self.server.set_server_name('Custom structure demo server')
# idx name will be used later for creating the xml used in data type dictionary
self._idx_name = 'http://examples.freeopcua.github.io'
self.idx = self.server.register_namespace(self._idx_name)
self.dict_builder = DataTypeDictionaryBuilder(self.server, self.idx,
self._idx_name,
'MyDictionary')
def __enter__(self):
return self
def __exit__(self, exc_type, exc_val, exc_tb):
quit()
def start_server(self):
self.server.start()
def create_structure(self, name):
# save the created data type
return self.dict_builder.create_data_type(name)
def complete_creation(self):
self.dict_builder.set_dict_byte_string()
def server_opc():
server = Server()
server.set_endpoint("opc.tcp://0.0.0.0:4840/vm_opc")
server.set_server_name("Servidor notificaciones vm")
# setup our own namespace, not really necessary but should as spec
uri = "notif VM"
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, "notif_vm")
event_id = myobj.add_variable(idx, "ID evento", float(0))
# new_st.set_writable()
tss = myobj.add_variable(idx, "Timestamp", datetime.datetime.now())
# new_st.set_writable()
progresiva = myobj.add_variable(idx, "Progresiva", float(-1))
estado_alarma = myobj.add_variable(idx, "Estado alarma", 'inicio')
criticidad = myobj.add_variable(idx, "Criticidad", float(-1))
ack_bit = myobj.add_variable(idx, "ACK bit", False)
ack_bit.set_writable()
alarma_activa = myobj.add_variable(idx, "Alarma presente", False)
# starting!
tags = {
'id': event_id,
'tss': tss,
'prog': progresiva,
'st': estado_alarma,
'crit': criticidad,
'ack': ack_bit,
'active': alarma_activa
}
server.start()
try:
while True:
if np.random.uniform() >= 0.5:
tags['id'].set_value(float(np.random.randint(500)))
tags['tss'].set_value(datetime.datetime.now())
tags['st'].set_value(choice(['inicio', 'cambio', 'fin']))
else:
print 'Bit ACK: ', tags['ack'].get_value(
), datetime.datetime.now()
time.sleep(3)
finally:
#close connection, remove subcsriptions, etc
server.stop()
class MyDeviceServer(object):
def __init__(self, endpoint, name):
# Logging configuration
self.logger = logging.getLogger('MyDeviceServer')
self.logger.setLevel(logging.INFO)
# Setup server
self.server = Server()
self.server.import_xml("MyDevice.xml")
self.server.set_endpoint(endpoint)
self.server.set_server_name(name)
self.objects_node = self.server.get_objects_node()
self.my_device_node = self.objects_node.get_child("0:MyDevice")
self.my_device_toggle_b = self.my_device_node.get_child("0:ToggleB")
self.my_device_toggle_c = self.my_device_node.get_child("0:ToggleC")
self.my_device_toggle_d = self.my_device_node.get_child("0:ToggleD")
self.server.link_method(self.my_device_toggle_b, self.toggle_b)
self.server.link_method(self.my_device_toggle_c, self.toggle_c)
self.server.link_method(self.my_device_toggle_d, self.toggle_d)
self.my_variable_a = self.my_device_node.get_child("0:VariableA")
self.my_variable_b = self.my_device_node.get_child("0:VariableB")
self.my_variable_c = self.my_device_node.get_child("0:VariableC")
self.my_variable_d = self.my_device_node.get_child("0:VariableD")
self.my_variable_e = self.my_device_node.get_child("0:VariableE")
@uamethod
def toggle_b(self, parent):
self.logger.info("Call Toggle B method")
self.my_variable_b.set_value(not self.my_variable_b.get_value())
@uamethod
def toggle_c(self, parent):
self.logger.info("Call Toggle C method")
self.my_variable_c.set_value(not self.my_variable_c.get_value())
@uamethod
def toggle_d(self, parent):
self.logger.info("Call Toggle D method")
self.my_variable_d.set_value(not self.my_variable_d.get_value())
def start(self):
self.server.start()
def stop(self):
self.server.stop()
def setVarA(self, intNumber):
self.my_variable_a.set_value(intNumber)
def setVarE(self, intNumber):
self.my_variable_e.set_value(intNumber)
def create_Server_Basics(name, port):
url = 'opc.tcp://0.0.0.0:' + port
gebName = 'MEMAP_' + name
server = Server()
server.set_endpoint(url)
server.set_server_name('MEMAP Mockup ' + name)
idx = server.register_namespace(gebName)
# Root node
objects = server.get_objects_node()
return (server, url, idx, objects)
def start(self):
server = Server()
server.set_endpoint("opc.tcp://0.0.0.0:4840/thingsroot/server")
server.set_server_name("ThingsRoot Example OpcUA Server")
self.idx = server.register_namespace("http://opcua.thingsroot.com")
self.objects = server.get_objects_node()
self.server = server
self.devices = _dict({})
self.devices_sub_handle = _dict({})
self.device_types = _dict({})
# self.load_redis_db()
server.start()
class CTSServer:
'''
CTSClient class is the OpcUa client for the CTS OpcUa server.
It also contains various high level function allowing to turn on and off
leds, run scans, display the CTS status, load MC events in the CTS, etc...
Input:
- angle_cts : the configuration of the CTS (0., 120. or 240. degrees )
'''
def __init__(self, angle_cts):
'''
Initialise function for CTSClient
Input:
- angle_cts : the configuration of the CTS
(0., 120. or 240. degrees)
'''
self.server = Server()
self.cts = camtestsetup.CTS('config/cts_config_' +
str(int(angle_cts)) + '.cfg',
'config/camera_config.cfg',
angle=angle_cts,
connected=True)
com.initialise_can(self.cts)
# optional: setup logging
logging.basicConfig(level=logging.WARN)
self.logger = logging.getLogger("opcua.address_space")
self.logger.setLevel(logging.DEBUG)
self.server.set_endpoint(
"opc.tcp://0.0.0.0:4843/cameratestsetup/server/")
self.server.set_server_name("Camera Test Setup OpcUa Server")
# setup our own namespace
#uri = "http://isdc.unige.ch/"
#idx = self.server.register_namespace(uri)
# get Objects node, this is where we should put our custom stuff
self.objects = self.server.get_objects_node()
## create the ua structure
create_opcua_structure(self.cts, self.objects)
# starting!
ready = True
self.server.start()
def create_Server_Basics(objectName, ems, port):
url = 'opc.tcp://0.0.0.0:' + port
gebName = objectName + ems
server = Server()
server.set_endpoint(url)
server.set_server_name(objectName + '_OPCUA_Server_' + ems)
idx = server.register_namespace(gebName)
'''
server.set_security_policy([
ua.SecurityPolicyType.NoSecurity,
ua.SecurityPolicyType.Basic256Sha256_SignAndEncrypt,
ua.SecurityPolicyType.Basic256Sha256_Sign])
'''
# Root node
objects = server.get_objects_node()
return (server, url, idx, objects)
class ServerPython(object):
def __init__(self):
self._server = None
self.nodes = None
self.get_node = None
self.get_namespace_array = None
def start_server(self, endpoint):
logger.info("Starting python-opcua server")
self._server = Server()
self._server.set_endpoint(endpoint)
self._server.set_server_name("OpcUa Modeler Server")
self.nodes = self._server.nodes
self.get_node = self._server.get_node
self.get_namespace_array = self._server.get_namespace_array
self.load_type_definitions = self._server.load_type_definitions
self.load_enums = self._server.load_enums
# now remove freeopcua namespace, not necessary when modeling and
# ensures correct idx for exported nodesets
ns_node = self._server.get_node(
ua.NodeId(ua.ObjectIds.Server_NamespaceArray))
nss = ns_node.get_value()
ns_node.set_value(nss[:1])
self._server.start()
def stop_server(self):
if self._server is not None:
self._server.stop()
self._server = None
self.get_node = None
self.get_namespace_array = None
def import_xml(self, path):
return self._server.import_xml(path)
def export_xml(self, nodes, uris, path):
exp = XmlExporter(self._server)
exp.build_etree(nodes, uris=uris)
exp.write_xml(path)
class ServerPython(object):
def __init__(self):
self._server = None
self.nodes = None
self.get_node = None
self.get_namespace_array = None
def start_server(self, endpoint):
logger.info("Starting python-opcua server")
self._server = Server()
self._server.set_endpoint(endpoint)
self._server.set_server_name("OpcUa Modeler Server")
self.nodes = self._server.nodes
self.get_node = self._server.get_node
self.get_namespace_array = self._server.get_namespace_array
self.load_type_definitions = self._server.load_type_definitions
self.load_enums = self._server.load_enums
# now remove freeopcua namespace, not necessary when modeling and
# ensures correct idx for exported nodesets
ns_node = self._server.get_node(ua.NodeId(ua.ObjectIds.Server_NamespaceArray))
nss = ns_node.get_value()
ns_node.set_value(nss[:1])
self._server.start()
def stop_server(self):
if self._server is not None:
self._server.stop()
self._server = None
self.get_node = None
self.get_namespace_array = None
def import_xml(self, path):
return self._server.import_xml(path)
def export_xml(self, nodes, uris, path):
exp = XmlExporter(self._server)
exp.build_etree(nodes, uris=uris)
exp.write_xml(path)
class HelloServer:
def __init__(self, endpoint, name, model_filepath):
self.server = Server()
# This need to be imported at the start or else it will overwrite the data
self.server.import_xml(model_filepath)
self.server.set_endpoint(endpoint)
self.server.set_server_name(name)
objects = self.server.get_objects_node()
ESP8266=self.server.get_node("ns=0;i=20005")
print("ESP8266: ")
print(ESP8266)
#death_button=ESP8266.get_children()
watering_status=ESP8266.get_value()
print(watering_status)
switch_method=self.server.get_node("ns=0;i=20006")
freeopcua_namespace = self.server.get_namespace_index("urn:freeopcua:python:server")
# hellower = objects.get_child("0:Hellower")
# hellower_say_hello = hellower.get_child("0:SayHello")
self.server.link_method(switch_method, switch_mtd)
# self.server.link_method(hellower_say_hello, say_hello_xml)
# hellower.add_method(
# freeopcua_namespace, "SayHello2", say_hello, [ua.VariantType.Boolean], [ua.VariantType.String])
# hellower.add_method(
# freeopcua_namespace, "SayHelloArray", say_hello_array, [ua.VariantType.Boolean], [ua.VariantType.String])
def __enter__(self):
self.server.start()
return self.server
def __exit__(self, exc_type, exc_val, exc_tb):
self.server.stop()
from opcua import ua, Server
import asyncio, random, time
from datetime import datetime
server = Server()
server.set_endpoint("opc.tcp://127.0.0.1:4840")
server.set_server_name("OPCUA-Test")
address_space = server.register_namespace("http://andreas-heine.net/UA")
root_node = server.get_root_node()
object_node = server.get_objects_node()
server_node = server.get_server_node()
parameter_obj = object_node.add_object(address_space, "Parameter")
random_node = parameter_obj.add_variable(address_space, "random",
ua.Variant(0, ua.VariantType.UInt64))
etype = server.create_custom_event_type(
address_space, 'MyFirstEvent', ua.ObjectIds.BaseEventType,
[('MyNumericProperty', ua.VariantType.Float),
('MyStringProperty', ua.VariantType.String)])
myevgen = server.get_event_generator(etype, parameter_obj)
vars_obj = object_node.add_object(address_space, "Vars")
var_list = []
for i in range(100):
var = vars_obj.add_variable(
ua.NodeId.from_string(f'ns={address_space};s=DB_DATA.Test.var{i}'),
f'Test.var{i}', 0)
var.set_writable(True)
var_list.append(var)
import sys
sys.path.insert(0, "..")
import time
from opcua import ua, Server
if __name__ == "__main__":
# setup our server
server = Server()
server.set_server_name('hhhh')
server.set_endpoint("opc.tcp://0.0.0.0:4840/freeopcua/server/")
# setup our own namespace, not really necessary but should as spec
uri = "http://examples.freeopcua.github.io"
idx = server.register_namespace(uri)
print 'idx ', idx
# get Objects node, this is where we should put our nodes
objects = server.get_objects_node()
# populating our address space
obj = objects.add_object(idx, "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ")
f1 = obj.add_variable(idx, "F1", 6.7)
f1.set_writable() # Set MyVariable to be writable by clients
f2 = obj.add_variable(idx, "F2", 'hello')
f2.set_writable()
custom_etype = server.nodes.base_event_type.add_object_type(
2, 'MySecondEvent')
custom_etype.add_property(2, 'MyIntProperty',
ua.Variant(0, ua.VariantType.Int32))
@author: mayer
"""
from opcua import Server
import time
import numpy as np
#import requests, json
import random
#from numpy import genfromtxt
# ============================== Building 1 ==============================
Geb = "Building1_"
server1 = Server()
url1 = "opc.tcp://0.0.0.0:4880"
server1.set_endpoint(url1)
server1.set_server_name("MEMAP fortiss Server 1")
name = "MEMAP_Building1"
idx = server1.register_namespace(name)
# Root node
objects = server1.get_objects_node()
# ================= Defining the Namespace Building 1 =====================
#General = objects.add_object(idx, "General")
#Classification = General.add_folder(idx, "Classification")
BuildingClass = General.add_variable(idx, "BuildingClass", 0)
### Demand
Demand = objects.add_object(idx, "Demand")
class StationUAServer:
def __init__(self, pick_by_light):
self._pbl = pick_by_light
self._setup_nodes()
self._generate_tags()
self.ua_server.start()
self._generate_subscriptions()
Thread(target=self._var_updater, daemon=True).start()
def _setup_nodes(self):
# Create server instance
self.ua_server = Server('./opcua_cache')
self.ua_server.set_endpoint('opc.tcp://0.0.0.0:4840/UA/PickByLight')
self.ua_server.set_server_name("Pick By Light Server")
# idx name will be used later for creating the xml used in data type dictionary
# setup our own namespace, not really necessary but should as spec
idx_name = 'http://examples.freeopcua.github.io'
self.idx = self.ua_server.register_namespace(idx_name)
# Set all possible endpoint policies for clients to connect through
self.ua_server.set_security_policy([
ua.SecurityPolicyType.NoSecurity,
ua.SecurityPolicyType.Basic128Rsa15_SignAndEncrypt,
ua.SecurityPolicyType.Basic128Rsa15_Sign,
ua.SecurityPolicyType.Basic256_SignAndEncrypt,
ua.SecurityPolicyType.Basic256_Sign
])
# get Objects node, this is where we should put our custom stuff
objects = self.ua_server.get_objects_node()
# Create objects for the pack tags using the above created packMLBasedObjectType
self.Status = objects.add_folder('ns=2;s=Status', "Status")
self.Command = objects.add_folder('ns=2;s=Command', "Command")
self.Command.add_method('ns=2;s=Command.SelectPort', "SelectPort",
self._select_method,
[ua.VariantType.Int32, ua.VariantType.String],
[ua.VariantType.Boolean])
self.Command.add_method('ns=2;s=Command.DeselectPort', "DeselectPort",
self._deselect_method, [ua.VariantType.Int32],
[ua.VariantType.Boolean])
self.Command.add_method('ns=2;s=Command.DeselectAllPorts',
"DeselectAllPorts", self._deselect_all_method,
[], [ua.VariantType.Boolean])
root = self.ua_server.get_root_node()
DummyFestoObj = root.add_object(
"ns=2;s=|var|CECC-LK.Application.Flexstation_globalVariables",
"DummyFesto")
DummyFestoObj.add_variable(
"ns=2;s=|var|CECC-LK.Application.Flexstation_globalVariables.FlexStationStatus",
"FlexStationStatus",
val=0).set_writable()
DummyFestoObj.add_variable(
"ns=2;s=|var|CECC-LK.Application.FBs.stpStopper1.stAppControl.uiOpNo",
"uiOpNo",
val=0).set_writable()
DummyFestoObj.add_variable(
"ns=2;s=ns=2;s=|var|CECC-LK.Application.AppModul.stRcvData.sOderDes",
"sOderDes",
val="").set_writable()
def _generate_tags(self):
# for all ports generate tags
for port_number, port in self._pbl.get_ports():
# Make a folder with the port_number as the name
b_obj = self.Status.add_object(
'ns=2;s=Status.Port_{}'.format(port_number),
"Port_{}".format(port_number))
content = self._pbl.get_content(port_number)
b_obj.add_variable(
"ns=2;s=Status.Port_{}.Selected".format(port_number),
"Selected", bool())
b_obj.add_variable(
"ns=2;s=Status.Port_{}.WorkFinished".format(port_number),
"WorkFinished", bool())
b_obj.add_variable(
"ns=2;s=Status.Port_{}.Instructions".format(port_number),
"Instructions", "")
b_obj.add_variable(
"ns=2;s=Status.Port_{}.Activity".format(port_number),
"Activity", bool())
b_obj.add_variable(
"ns=2;s=Status.Port_{}.ActivityTimestamp".format(port_number),
"ActivityTimestamp", datetime.fromtimestamp(0))
b_obj.add_variable(
"ns=2;s=Status.Port_{}.LightState".format(port_number),
"LightState", 0)
b_obj.add_variable(
"ns=2;s=Status.Port_{}.ContentDisplayName".format(port_number),
"ContentDisplayName", content['display_name'])
b_obj.add_variable(
"ns=2;s=Status.Port_{}.ContentName".format(port_number),
"ContentName", content['name'])
b_obj.add_variable(
"ns=2;s=Status.Port_{}.ContentDescription".format(port_number),
"ContentDescription", content['description'])
b_obj.add_variable(
"ns=2;s=Status.Port_{}.ContentImagePath".format(port_number),
"ContentImagePath", content['image_path'])
'''
create command tags for clients that does not support ua methods.
'''
b_obj = self.Command.add_object(
'ns=2;s=Command.Port_{}'.format(port_number),
"Port_{}".format(port_number))
b_obj.add_variable(
"ns=2;s=Command.Port_{}.Select".format(port_number), "Select",
bool()).set_writable()
b_obj.add_variable(
"ns=2;s=Command.Port_{}.Deselect".format(port_number),
"Deselect", bool()).set_writable()
b_obj.add_variable(
"ns=2;s=Command.Port_{}.Instructions".format(port_number),
"Instructions", "").set_writable()
b_obj.add_variable(
"ns=2;s=Command.Port_{}.ContentDisplayName".format(
port_number), "ContentDisplayName",
content['display_name']).set_writable()
b_obj.add_variable(
"ns=2;s=Command.Port_{}.ContentName".format(port_number),
"ContentName", content['name']).set_writable()
b_obj.add_variable(
"ns=2;s=Command.Port_{}.ContentDescription".format(
port_number), "ContentDescription",
content['description']).set_writable()
b_obj.add_variable(
"ns=2;s=Command.Port_{}.ContentImagePath".format(port_number),
"ContentImagePath", content['image_path']).set_writable()
'''
Generate some common commands
'''
# Make a folder for the commons
b_obj = self.Command.add_object('ns=2;s=Command.ByContent',
'ByContent')
b_obj.add_variable("ns=2;s=Command.ByContent.Select", "Select",
bool()).set_writable()
b_obj.add_variable("ns=2;s=Command.ByContent.Deselect", "Deselect",
bool()).set_writable()
b_obj.add_variable("ns=2;s=Command.ByContent.Name", "Name",
"").set_writable()
b_obj.add_variable("ns=2;s=Command.ByContent.Instructions",
"Instructions", "").set_writable()
b_obj.add_variable("ns=2;s=Command.ByContent.Result", "Result",
-1).set_writable()
def _generate_subscriptions(self):
# Create UA subscriber node for the box. Set self as handler.
sub = self.ua_server.create_subscription(100, self)
# Subscribe to the Select tag and all the content tags
for port_number, port in self._pbl.get_ports():
ac = self.ua_server.get_node(
"ns=2;s=Command.Port_{}.Select".format(port_number))
sub.subscribe_data_change(ac)
ac = self.ua_server.get_node(
"ns=2;s=Command.Port_{}.Deselect".format(port_number))
sub.subscribe_data_change(ac)
b = self.ua_server.get_node(
"ns=2;s=Command.Port_{}.ContentDisplayName".format(
port_number))
sub.subscribe_data_change(b)
c = self.ua_server.get_node(
"ns=2;s=Command.Port_{}.ContentName".format(port_number))
sub.subscribe_data_change(c)
d = self.ua_server.get_node(
"ns=2;s=Command.Port_{}.ContentDescription".format(
port_number))
sub.subscribe_data_change(d)
e = self.ua_server.get_node(
"ns=2;s=Command.Port_{}.ContentImagePath".format(port_number))
sub.subscribe_data_change(e)
a = self.ua_server.get_node("ns=2;s=Command.ByContent.Select")
sub.subscribe_data_change(a)
a = self.ua_server.get_node("ns=2;s=Command.ByContent.Deselect")
sub.subscribe_data_change(a)
a = self.ua_server.get_node("ns=2;s=Command.ByContent.Name")
sub.subscribe_data_change(a)
a = self.ua_server.get_node(
"ns=2;s=Command.ByContent.Instructions")
sub.subscribe_data_change(a)
def _event_notification(self, event):
logger.warning(
"Python: New event. No function implemented. {}".format(event))
def _select_method(self, parrent, port_number, instructions):
r = self._pbl.select_port(port_number.Value,
instructions=instructions.Value)
return [ua.Variant(value=r, varianttype=ua.VariantType.Boolean)]
def _deselect_method(self, parrent, port_number):
r = self._pbl.deselect_port(port_number.Value)
return [ua.Variant(value=r, varianttype=ua.VariantType.Boolean)]
def _deselect_all_method(self, parrent):
r = self._pbl.deselect_all()
return [ua.Variant(value=r, varianttype=ua.VariantType.Boolean)]
def datachange_notification(self, node, val, data):
"""UA server callback on data change notifications
Arguments:
node {Node} -- [description]
val {[type]} -- [description]
data {[type]} -- [description]
"""
logger.debug("New data change event. node:{}, value:{}".format(
node, val))
# Sorry about these lines of code, but I don't see any nicer way of determining the port number than from
# the identifier string. Then splitting it up to isolate the port number.
# Example "Status.Port_2.Selected" is split into ['Status', 'Port_2', 'Selected'] then 'Port_2' is split into
# ['Port', '2'] and then the '2' is turned into an intiger.
path_list = str(node.nodeid.Identifier).split(".")
# We can safely assume that the last term is the tag that updated.
tag = path_list[-1]
# Figure out the port number
port_number = None
if 'Port' in path_list[1]:
port_number = int(path_list[1].split("_")[-1])
""" Switch for each possible tag"""
# If the command tag "Select" changes go select that port with the instructions saved in the command tag.
if tag == 'Select' and port_number:
if val == True:
node = self.ua_server.get_node(
"ns=2;s=Command.Port_{}.Instructions".format(port_number))
instructions = node.get_value()
self._pbl.select_port(port_number, instructions=instructions)
# Reset the select flag
node = self.ua_server.get_node(
"ns=2;s=Command.Port_{}.Select".format(port_number))
node.set_value(False)
elif tag == 'Deselect' and port_number:
if val == True:
self._pbl.deselect_port(port_number, work_finished=True)
# Reset the select flag
node = self.ua_server.get_node(
"ns=2;s=Command.Port_{}.Deselect".format(port_number))
node.set_value(False)
elif tag == 'ContentDisplayName' and port_number:
self._pbl.set_content_key(port_number, 'display_name', str(val))
elif tag == 'ContentName' and port_number:
self._pbl.set_content_key(port_number, 'name', str(val))
elif tag == 'ContentDescription' and port_number:
self._pbl.set_content_key(port_number, 'description', str(val))
elif tag == 'ContentImagePath' and port_number:
self._pbl.set_content_key(port_number, 'image_path', str(val))
elif tag == 'Select' and 'ByContent' in path_list[1]:
if val == True:
instructions = self.ua_server.get_node(
"ns=2;s=Command.ByContent.Instructions").get_value()
name = self.ua_server.get_node(
"ns=2;s=Command.ByContent.Name").get_value()
_, selected_port = self._pbl.select_content(
name=name, instructions=instructions)
# Reset the select flag
node = self.ua_server.get_node(
"ns=2;s=Command.ByContent.Select")
node.set_value(False)
node = self.ua_server.get_node(
"ns=2;s=Command.ByContent.Result")
node.set_value(selected_port)
elif tag == 'Deselect' and 'ByContent' in path_list[1]:
if val == True:
name = self.ua_server.get_node(
"ns=2;s=Command.ByContent.Name").get_value()
self._pbl.deselect_content(name=name, work_finished=True)
# Reset the select flag
node = self.ua_server.get_node(
"ns=2;s=Command.ByContent.Deselect")
node.set_value(False)
def _var_updater(self):
while True:
sleep(0.1)
# for all boxes update tags
for port_number, port in self._pbl.get_ports():
# get the object in the packml status object using our unique idx
node = self.ua_server.get_node(
"ns=2;s=Status.Port_{}.Activity".format(port_number))
node.set_value(port.activity)
node = self.ua_server.get_node(
"ns=2;s=Status.Port_{}.ActivityTimestamp".format(
port_number))
node.set_value(port.activity_timestamp)
node = self.ua_server.get_node(
"ns=2;s=Status.Port_{}.LightState".format(port_number))
node.set_value(port.get_light())
state = self._pbl.get_port_state(port_number)
node = self.ua_server.get_node(
"ns=2;s=Status.Port_{}.Selected".format(port_number))
node.set_value(state.selected)
node = self.ua_server.get_node(
"ns=2;s=Status.Port_{}.WorkFinished".format(port_number))
node.set_value(state.work_finished)
node = self.ua_server.get_node(
"ns=2;s=Status.Port_{}.Instructions".format(port_number))
node.set_value(state.select_instructions)
content = self._pbl.get_content(port_number)
node = self.ua_server.get_node(
"ns=2;s=Status.Port_{}.ContentDisplayName".format(
port_number))
node.set_value(content['display_name'])
node = self.ua_server.get_node(
"ns=2;s=Status.Port_{}.ContentName".format(port_number))
node.set_value(content['name'])
node = self.ua_server.get_node(
"ns=2;s=Status.Port_{}.ContentDescription".format(
port_number))
node.set_value(content['description'])
node = self.ua_server.get_node(
"ns=2;s=Status.Port_{}.ContentImagePath".format(
port_number))
node.set_value(content['image_path'])
led_b.off()
def event_notification(self, event):
print("Python: New event", event)
if __name__ == "__main__":
global ledR, ledG, ledB, switch1, switch2, rotaryVal, rangeVal, flameVal, sinGen
led_r.off()
led_g.off()
led_b.off()
server = Server()
server.set_endpoint("opc.tcp://0.0.0.0:4840/pi-box")
server.set_server_name("OPC-UA Pi Box")
# set all possible endpoint policies for clients to connect through
server.set_security_policy([
ua.SecurityPolicyType.NoSecurity,
ua.SecurityPolicyType.Basic256Sha256_SignAndEncrypt,
ua.SecurityPolicyType.Basic256Sha256_Sign
])
idx = server.register_namespace("opcua-pi-box")
# get Objects node, this is where we should put our nodes
objects = server.get_objects_node()
myobj = objects.add_object(idx, "OPCUA-PI-BOX")
ledR = myobj.add_variable(idx, "Led_R", False, ua.VariantType.Boolean)
ledR.set_writable()
def main():
# logging.basicConfig(level=logging.ERROR)
# logger=logging.getLogger("opcua.server.internal_subscription")
# logger.setLevel(logging.ERROR)
read = open('config.txt', 'r')
configs = read.readlines()
read.close()
server = Server()
endpoint = configs[0].split('@')[1].rstrip('\n')
servername = configs[1].split('@')[1].rstrip('\n')
kafkaservers = configs[2].split('@')[1].replace("'", "").replace(
"\"", "").rstrip('\n')
kafkaserver = kafkaservers[1:-1].split(',')
kafkatopic = configs[3].split('@')[1].rstrip('\n')
eventname = configs[4].split('@')[1].rstrip('\n')
# auto_offset_reset='earlist'
consumer = KafkaConsumer(kafkatopic, bootstrap_servers=kafkaserver)
server.set_endpoint(endpoint)
server.set_server_name(servername)
print("Program running......")
print("Please do not close this page")
# 证书
# server.load_certificate("certificate-example.der")
# server.load_private_key("private-key-example.pem")
# 安全策略
server.set_security_policy([
ua.SecurityPolicyType.NoSecurity,
# ua.SecurityPolicyType.Basic256Sha256_SignAndEncrypt,
# ua.SecurityPolicyType.Basic256Sha256_Sign
])
uri = "http://taiji.com.cn"
idx = server.register_namespace(uri)
objs = server.get_objects_node()
myobj = objs.add_object(idx, "MyObject")
# 节点
taglists = readFile("node.csv")
for taglist in taglists:
# myobj.add_variable(idx, taglist, 6.7).set_writable()
myobj.add_variable(idx, taglist, random.random()).set_writable()
# myobj.add_variable(idx, taglist, 6.7)
attrs = readFile("ae_attr.csv")
custom_etype = server.nodes.base_event_type.add_object_type(idx, eventname)
for attr in attrs:
custom_etype.add_property(2, attr, ua.Variant("",
ua.VariantType.String))
myevent = server.get_event_generator(custom_etype, myobj)
server.start()
try:
rootnode = server.get_root_node().get_child(
["0:Objects", "{}:MyObject".format(idx)])
rootnodes = rootnode.get_variables()
nodeAll = {}
for i in range(len(rootnodes)):
nodeId = rootnodes[i]
nodeName = rootnodes[i].get_browse_name().Name
nodeAll.update({nodeName: nodeId})
for message in consumer:
recv = message.value.decode("utf8")
# print("recvevent=",recv)
if recv[0] == '{' and recv[-1] == '}':
nodeKafka = json.loads(recv)
# print("nodeKafka=", nodeKafka)
comName = nodeKafka.keys() & nodeAll.keys()
for row in comName:
rootnode.get_child(["2:{}".format(row)
]).set_value(nodeKafka[row])
else:
recv = recv.replace('\n', '').replace('\r', '')
datas = recv.split("|")[1:]
# print("datas=", datas)
if len(datas) == 9:
for i in range(len(attrs)):
# exec("myevent.event.{}='{}'".format(attrs[i], datas[i].replace('\n', '').replace('\r', '')))
exec("myevent.event.{}='{}'".format(
attrs[i], datas[i]))
myevent.trigger()
else:
# continue
f = open('ErrorAE.bak', 'a', encoding='utf8')
f.write(recv)
f.write('\n')
f.close
# print("mysecondevgen=",mysecondevgen)
# print("mysecondevgen=", myevent.event)
except Exception as e:
print(e)
finally:
server.stop()
print("OPCUA: New data change event", displayname, val)
if displayname == "Connect":
self.connection(val)
def event_notification(self, event):
print("OPCUA: New event", event)
if __name__ == "__main__":
server = Server("./cache/cache")
server.set_endpoint("opc.tcp://0.0.0.0:4840/dobotopcua/server/")
server.set_server_name("Dobot FreeOpcUa Server")
# server.set_security_policy([
# ua.SecurityPolicyType.NoSecurity,
# ua.SecurityPolicyType.Basic256Sha256_SignAndEncrypt,
# ua.SecurityPolicyType.Basic256Sha256_Sign])
# server.load_certificate("my_cert.der")
# server.load_certificate("my_cert.pem")
# server.load_private_key("my_private_key.pem")
# set up namespace
uri = "http://opcfoundation.org/UA/"
idx = server.register_namespace(uri)
class OPCServer(object):
def __init__(self, settings):
super(OPCServer, self).__init__()
server_settings = settings.get("server")
objects = settings.get("objects")
self._endpoint = server_settings["endpoint"]
self._name = server_settings["name"]
self._namespace = server_settings["namespace"]
self._init_server()
for o in objects:
self._add_object(o["name"])
for variable, value in o["ro_variables"].items():
self._add_variable(o["name"], variable, value)
for variable, value in o["rw_variables"].items():
self._add_variable(o["name"], variable, value, True)
def start(self):
if self._server:
self._server.start()
def _init_server(self):
self._server = Server()
self._server.set_endpoint(self._endpoint)
self._server.set_server_name(self._name)
self._index = self._server.register_namespace(self._namespace)
_log.info("Index: %r" % (self._index,))
self._objects_node = self._server.get_objects_node()
_log.info("Node: %r" % (self._objects_node))
self._objects = {}
_log.info("Endpoints: %r" % (self._server.get_endpoints()))
def stop(self):
self._server.stop()
def _add_object(self, object_name):
self._objects[object_name] = { 'object': self._objects_node.add_object(self._index, object_name), 'variables' : {}}
def _add_variable(self, object_name, variable_name, value, writable=False):
obj = self._objects.get(object_name, None)
if obj.get('object', None):
var = self._objects_node.add_variable(self._index, variable_name, str(value))
obj['variables'][variable_name] = var
if writable:
var.set_writable()
return True
return False
def _get_variable(self, object_name, variable_name):
obj = self._objects.get(object_name)
if obj.get('object', None):
var = obj['variables'].get(variable_name, None)
return var
return None
def set_value(self, object_name, variable_name, value):
var = self._get_variable(object_name, variable_name)
if var:
var.set_value(str(value))
return True
return False
def get_value(self, object_name, variable_name):
var = self._get_variable(object_name, variable_name)
if var:
return var.get_value()
return None
# logger = logging.getLogger("opcua.uaprocessor")
# logger.setLevel(logging.DEBUG)
# now setup our server
server = Server()
# Bearbeitungszentrum anlegen, mit BearbeitungscenterDB-Klasse als parameter
center = Bearbeitungscenter(opcuaDB)
# Registrieren der zu erfassenden Signale
signal.signal(signal.SIGALRM, center.updateServer) # signal 14
signal.signal(signal.SIGTERM, center.unregisterServer) # signal 15
# server.disable_clock()
# server.set_endpoint("opc.tcp://localhost:4840/freeopcua/server/")
server.set_endpoint("opc.tcp://0.0.0.0:4840/freeopcua/server/")
server.set_server_name("Fräsmaschine01 Server")
# Anlegen der möglichen Endpunktrichtlinien für Clients fest,
# über die eine Verbindung hergestellt werden soll
server.set_security_policy([
ua.SecurityPolicyType.NoSecurity,
ua.SecurityPolicyType.Basic256Sha256_SignAndEncrypt,
ua.SecurityPolicyType.Basic256Sha256_Sign,
])
# Adressraum festlegen
uri = "http://freeopcua.github.io"
idx = server.register_namespace(uri)
# Erstellen eines neuen Knotentyp, den wir in unserem Adressraum instanziieren können
dev = server.nodes.base_object_type.add_object_type(idx, "MyDevice")
dev.add_variable(idx, "sensor1", 1.0).set_modelling_rule(True)
logging.basicConfig(level=logging.WARN)
#logger = logging.getLogger("opcua.address_space")
# logger.setLevel(logging.DEBUG)
#logger = logging.getLogger("opcua.internal_server")
# logger.setLevel(logging.DEBUG)
#logger = logging.getLogger("opcua.binary_server_asyncio")
# logger.setLevel(logging.DEBUG)
#logger = logging.getLogger("opcua.uaprocessor")
# logger.setLevel(logging.DEBUG)
# now setup our server
server = Server()
#server.disable_clock()
#server.set_endpoint("opc.tcp://localhost:4840/freeopcua/server/")
server.set_endpoint("opc.tcp://0.0.0.0:4840/freeopcua/server/")
server.set_server_name("FreeOpcUa Example Server")
# set all possible endpoint policies for clients to connect through
server.set_security_policy([
ua.SecurityPolicyType.NoSecurity,
ua.SecurityPolicyType.Basic128Rsa15_SignAndEncrypt,
ua.SecurityPolicyType.Basic128Rsa15_Sign,
ua.SecurityPolicyType.Basic256_SignAndEncrypt,
ua.SecurityPolicyType.Basic256_Sign
])
# setup our own namespace
uri = "http://examples.freeopcua.github.io"
idx = server.register_namespace(uri)
# create a new node type we can instantiate in our address space
dev = server.nodes.base_object_type.add_object_type(0, "MyDevice")
def uaserver():
parser = argparse.ArgumentParser(
description=
"Run an example OPC-UA server. By importing xml definition and using uawrite command line, it is even possible to expose real data using this server"
)
# we setup a server, this is a bit different from other tool so we do not reuse common arguments
parser.add_argument(
"-u",
"--url",
help="URL of OPC UA server, default is opc.tcp://0.0.0.0:4840",
default='opc.tcp://0.0.0.0:4840',
metavar="URL")
parser.add_argument(
"-v",
"--verbose",
dest="loglevel",
choices=['DEBUG', 'INFO', 'WARNING', 'ERROR', 'CRITICAL'],
default='WARNING',
help="Set log level")
parser.add_argument(
"-x",
"--xml",
metavar="XML_FILE",
help="Populate address space with nodes defined in XML")
parser.add_argument("-p",
"--populate",
action="store_true",
help="Populate address space with some sample nodes")
parser.add_argument(
"-c",
"--disable-clock",
action="store_true",
help=
"Disable clock, to avoid seeing many write if debugging an application"
)
parser.add_argument(
"-s",
"--shell",
action="store_true",
help="Start python shell instead of randomly changing node values")
parser.add_argument("--certificate", help="set server certificate")
parser.add_argument("--private_key", help="set server private key")
args = parser.parse_args()
logging.basicConfig(format="%(levelname)s: %(message)s",
level=getattr(logging, args.loglevel))
server = Server()
server.set_endpoint(args.url)
if args.certificate:
server.load_certificate(args.certificate)
if args.private_key:
server.load_private_key(args.private_key)
server.disable_clock(args.disable_clock)
server.set_server_name("FreeOpcUa Example Server")
if args.xml:
server.import_xml(args.xml)
if args.populate:
@uamethod
def multiply(parent, x, y):
print("multiply method call with parameters: ", x, y)
return x * y
uri = "http://examples.freeopcua.github.io"
idx = server.register_namespace(uri)
objects = server.get_objects_node()
myobj = objects.add_object(idx, "MyObject")
mywritablevar = myobj.add_variable(idx, "MyWritableVariable", 6.7)
mywritablevar.set_writable(
) # Set MyVariable to be writable by clients
myvar = myobj.add_variable(idx, "MyVariable", 6.7)
myarrayvar = myobj.add_variable(idx, "MyVarArray", [6.7, 7.9])
myprop = myobj.add_property(idx, "MyProperty", "I am a property")
mymethod = myobj.add_method(
idx, "MyMethod", multiply,
[ua.VariantType.Double, ua.VariantType.Int64],
[ua.VariantType.Double])
server.start()
try:
if args.shell:
embed()
elif args.populate:
count = 0
while True:
time.sleep(1)
myvar.set_value(math.sin(count / 10))
myarrayvar.set_value(
[math.sin(count / 10),
math.sin(count / 100)])
count += 1
else:
while True:
time.sleep(1)
finally:
server.stop()
sys.exit(0)
def getdata(parent, rfid):
#Test data later from database
db_value = 1234
print(f"Method 'getdata' got called with inputParameter: {rfid}")
return (
ua.Variant(rfid, ua.VariantType.UInt64), #RFID
ua.Variant(db_value, ua.VariantType.UInt64) #Value from database
)
if __name__ == "__main__":
"""
OPC-UA-Server Setup
"""
server = Server()
server.set_endpoint("opc.tcp://127.0.0.1:4840")
server.set_server_name("PythonOpcUaServer")
security_policy = [
ua.SecurityPolicyType.NoSecurity,
#ua.SecurityPolicyType.Basic256Sha256_SignAndEncrypt,
#ua.SecurityPolicyType.Basic256Sha256_Sign
]
server.set_security_policy(security_policy)
policyIDs = [
"Anonymous", "Basic256Sha256", "Username"
]
server.set_security_IDs(policyIDs)
address_space = server.register_namespace("http://andreas-heine.net/UA")
"""
OPC-UA-Modeling
"""
def run(nodejson, endpoint, namespace, description):
# now setup our server
server = Server()
#server.set_endpoint("opc.tcp://localhost:4840/freeopcua/server/")
server.set_endpoint(endpoint)
server.set_server_name(description)
# setup our own namespace
uri = namespace
idx = server.register_namespace(uri)
# get Objects node, this is where we should put our custom stuff
objects = server.get_objects_node()
variables = {}
nodeId = 5
def add_variable(f, vals, nodeId):
for x in vals:
k = x if isinstance(x, str) or isinstance(x, unicode) else x.keys()[0]
#v = f.add_variable("ns=6;i=600%d" % nodeId, k, ua.Variant([], ua.VariantType.Float))
v = f.add_variable("ns=6;i=600%d" % nodeId, x, ua.Variant([], ua.VariantType.Float))
# nodeid, browsename, value, [variant type]
#v = f.add_variable("ns=6;s=%s" % x, x, ua.Variant([], ua.VariantType.Float))
v.set_writable()
variables[k] = v
nodeId = nodeId+1
return nodeId
def add_folder(p, pid, val, nodeId):
for n, v in val.items():
mf = p.add_folder("ns=%d;i=%d00%d" % (pid, pid, nodeId), n)
#mf = p.add_folder("ns=%d;s=%s" % (pid, n), n)
if isinstance(v, list) or isinstance(v, tuple):
nodeId = add_variable(mf, v, nodeId+1)
else:
nodeId = add_folder(mf, pid+1, v, nodeId+1)
return nodeId
# populating our address space
add_folder(objects, 5, nodejson, nodeId)
'''
myobj = objects.add_object(idx, "MyObject")
myvar = myobj.add_variable(idx, "MyVariable", 6.7)
myvar.set_writable() # Set MyVariable to be writable by clients
myarrayvar = myobj.add_variable(idx, "myarrayvar", [6.7, 7.9])
myarrayvar = myobj.add_variable(idx, "myStronglytTypedVariable", ua.Variant([], ua.VariantType.UInt32))
myprop = myobj.add_property(idx, "myproperty", "I am a property")
mymethod = myobj.add_method(idx, "mymethod", func, [ua.VariantType.Int64], [ua.VariantType.Boolean])
inargx = ua.Argument()
inargx.Name = "x"
inargx.DataType = ua.NodeId(ua.ObjectIds.Int64)
inargx.ValueRank = -1
inargx.ArrayDimensions = []
inargx.Description = ua.LocalizedText("First number x")
inargy = ua.Argument()
inargy.Name = "y"
inargy.DataType = ua.NodeId(ua.ObjectIds.Int64)
inargy.ValueRank = -1
inargy.ArrayDimensions = []
inargy.Description = ua.LocalizedText("Second number y")
outarg = ua.Argument()
outarg.Name = "Result"
outarg.DataType = ua.NodeId(ua.ObjectIds.Int64)
outarg.ValueRank = -1
outarg.ArrayDimensions = []
outarg.Description = ua.LocalizedText("Multiplication result")
multiply_node = myobj.add_method(idx, "multiply", multiply, [inargx, inargy], [outarg])
'''
# starting!
server.start()
#print("Available loggers are: ", logging.Logger.manager.loggerDict.keys())
return server, variables
Out2 = 12345
return (ua.Variant(Out1, ua.VariantType.Int64),
ua.Variant(Out2, ua.VariantType.Int64))
if __name__ == "__main__":
"""
OPC-UA-Server Setup
"""
server = Server()
endpoint = "opc.tcp://127.0.0.1:4840"
server.set_endpoint(endpoint)
servername = "Python-OPC-UA"
server.set_server_name(servername)
address_space = server.register_namespace("http://andreas-heine.net/UA")
uri = "urn:opcua:python:server"
server.set_application_uri(uri)
server.load_certificate("certificate.pem")
server.load_private_key("key.pem")
server.set_security_policy([
# ua.SecurityPolicyType.NoSecurity,
# ua.SecurityPolicyType.Basic128Rsa15_Sign,
# ua.SecurityPolicyType.Basic128Rsa15_SignAndEncrypt,
# ua.SecurityPolicyType.Basic256Sha256_Sign,
ua.SecurityPolicyType.Basic256Sha256_SignAndEncrypt
])
policyIDs = ["Username"]
# connDb = sqlite3.connect('f:\scadapy\config\db\srvDb.db')
cursor = connDb.cursor()
for row in cursor.execute(
'SELECT ip,port,tty,speed,timeout FROM servers where id =' +
idServ):
serverSlave = row[0]
portSlave = row[1]
serialPort = row[2]
ttySpeed = row[3]
timeOut = row[4]
server = Server()
server.set_endpoint("opc.tcp://" + serverSlave + ":" + portSlave +
"/srv/")
server.set_server_name("Server")
server.load_certificate(pathFolder + "server_cert.der")
server.load_private_key(pathFolder + "server_private_key.pem")
uri = "http://opcua.server.ru"
idx = server.register_namespace(uri)
objects = server.get_objects_node()
cursor.execute(
"select ip,reg,toAdr,fromCount,comment,login,password from master_http where serverId = "
+ idServ)
dt = cursor.fetchall()
units = len(dt)
for i in range(0, len(dt)):
reg.append(i)
def uaserver():
parser = argparse.ArgumentParser(description="Run an example OPC-UA server. By importing xml definition and using uawrite command line, it is even possible to expose real data using this server")
# we setup a server, this is a bit different from other tool so we do not reuse common arguments
parser.add_argument("-u",
"--url",
help="URL of OPC UA server, default is opc.tcp://0.0.0.0:4840",
default='opc.tcp://0.0.0.0:4840',
metavar="URL")
parser.add_argument("-v",
"--verbose",
dest="loglevel",
choices=['DEBUG', 'INFO', 'WARNING', 'ERROR', 'CRITICAL'],
default='WARNING',
help="Set log level")
parser.add_argument("-x",
"--xml",
metavar="XML_FILE",
help="Populate address space with nodes defined in XML")
parser.add_argument("-p",
"--populate",
action="store_true",
help="Populate address space with some sample nodes")
parser.add_argument("-c",
"--disable-clock",
action="store_true",
help="Disable clock, to avoid seeing many write if debugging an application")
parser.add_argument("-s",
"--shell",
action="store_true",
help="Start python shell instead of randomly changing node values")
parser.add_argument("--certificate",
help="set server certificate")
parser.add_argument("--private_key",
help="set server private key")
args = parser.parse_args()
logging.basicConfig(format="%(levelname)s: %(message)s", level=getattr(logging, args.loglevel))
server = Server()
server.set_endpoint(args.url)
if args.certificate:
server.load_certificate(args.certificate)
if args.private_key:
server.load_private_key(args.private_key)
server.disable_clock(args.disable_clock)
server.set_server_name("FreeOpcUa Example Server")
if args.xml:
server.import_xml(args.xml)
if args.populate:
@uamethod
def multiply(parent, x, y):
print("multiply method call with parameters: ", x, y)
return x * y
uri = "http://examples.freeopcua.github.io"
idx = server.register_namespace(uri)
objects = server.get_objects_node()
myobj = objects.add_object(idx, "MyObject")
mywritablevar = myobj.add_variable(idx, "MyWritableVariable", 6.7)
mywritablevar.set_writable() # Set MyVariable to be writable by clients
myvar = myobj.add_variable(idx, "MyVariable", 6.7)
myarrayvar = myobj.add_variable(idx, "MyVarArray", [6.7, 7.9])
myprop = myobj.add_property(idx, "MyProperty", "I am a property")
mymethod = myobj.add_method(idx, "MyMethod", multiply, [ua.VariantType.Double, ua.VariantType.Int64], [ua.VariantType.Double])
server.start()
try:
if args.shell:
embed()
elif args.populate:
count = 0
while True:
time.sleep(1)
myvar.set_value(math.sin(count / 10))
myarrayvar.set_value([math.sin(count / 10), math.sin(count / 100)])
count += 1
else:
while True:
time.sleep(1)
finally:
server.stop()
sys.exit(0)
class ROSServer:
def __init__(self):
self.namespace_ros = rospy.get_param("/rosopcua/namespace")
self.topicsDict = {}
self.servicesDict = {}
self.actionsDict = {}
rospy.init_node("rosopcua")
self.server = Server()
self.server.set_endpoint("opc.tcp://0.0.0.0:21554/")
self.server.set_server_name("ROS ua Server")
self.server.start()
# setup our own namespaces, this is expected
uri_topics = "http://ros.org/topics"
# two different namespaces to make getting the correct node easier for get_node (otherwise had object for service and topic with same name
uri_services = "http://ros.org/services"
uri_actions = "http://ros.org/actions"
idx_topics = self.server.register_namespace(uri_topics)
idx_services = self.server.register_namespace(uri_services)
idx_actions = self.server.register_namespace(uri_actions)
# get Objects node, this is where we should put our custom stuff
objects = self.server.get_objects_node()
# one object per type we are watching
topics_object = objects.add_object(idx_topics, "ROS-Topics")
services_object = objects.add_object(idx_services, "ROS-Services")
actions_object = objects.add_object(idx_actions, "ROS_Actions")
while not rospy.is_shutdown():
# ros_topics starts a lot of publisher/subscribers, might slow everything down quite a bit.
ros_services.refresh_services(self.namespace_ros, self,
self.servicesDict, idx_services,
services_object)
ros_topics.refresh_topics_and_actions(self.namespace_ros, self,
self.topicsDict,
self.actionsDict, idx_topics,
idx_actions, topics_object,
actions_object)
# Don't clog cpu
time.sleep(60)
self.server.stop()
quit()
def find_service_node_with_same_name(self, name, idx):
rospy.logdebug("Reached ServiceCheck for name " + name)
for service in self.servicesDict:
rospy.logdebug(
"Found name: " +
str(self.servicesDict[service].parent.nodeid.Identifier))
if self.servicesDict[service].parent.nodeid.Identifier == name:
rospy.logdebug("Found match for name: " + name)
return self.servicesDict[service].parent
return None
def find_topics_node_with_same_name(self, name, idx):
rospy.logdebug("Reached TopicCheck for name " + name)
for topic in self.topicsDict:
rospy.logdebug(
"Found name: " +
str(self.topicsDict[topic].parent.nodeid.Identifier))
if self.topicsDict[topic].parent.nodeid.Identifier == name:
rospy.logdebug("Found match for name: " + name)
return self.topicsDict[topic].parent
return None
def find_action_node_with_same_name(self, name, idx):
rospy.logdebug("Reached ActionCheck for name " + name)
for topic in self.actionsDict:
rospy.logdebug(
"Found name: " +
str(self.actionsDict[topic].parent.nodeid.Identifier))
if self.actionsDict[topic].parent.nodeid.Identifier == name:
rospy.logdebug("Found match for name: " + name)
return self.actionsDict[topic].parent
return None
class TestServer:
lang = "cs"
def __init__(self, endpoint, name):
parser = argparse.ArgumentParser()
parser.add_argument("--start_state", "-s", type=int, default=0)
args = parser.parse_args()
start_state = args.start_state
root_dir = os.path.join(os.path.dirname(__file__),
os.path.pardir).replace('\\', '/')
print(root_dir)
variants_file = os.path.join(root_dir, "utils",
"next_states.json").replace('\\', '/')
variants_file_desc = os.path.join(root_dir, "utils",
"state_description.json").replace(
'\\', '/')
with open(variants_file, encoding="utf-8") as f:
self.state_descriptions = json.load(f, encoding="utf-8")[self.lang]
with open(variants_file_desc, encoding="utf-8") as f:
self.next_state_description = json.load(
f, encoding="utf-8")[self.lang]
self.server = Server()
# self.server.import_xml(model_filepath) # normally, definition would be loaded here
self.server.set_endpoint(endpoint) # specify the endpoint (address)
self.server.set_server_name(name) # specify server name (whatever)
objects = self.server.get_objects_node(
) # get the object containing entity
myobj = objects.add_object(4, "DATA") # create new object
horse = myobj.add_object(4, "horse") # create new object
self.mic_active = horse.add_variable(4, "request", False)
self.mic_active.set_writable()
response_string = horse.add_variable(4, "response", "")
response_string.set_writable()
self.actual_state = horse.add_variable(4, "actual_state", True)
self.actual_state_num = self.actual_state.add_variable(4, "number", 0)
self.actual_state.add_variable(4, "ready", True)
next_state_choice = horse.add_variable(4, "next_state_choice", True)
self.request_var = next_state_choice.add_variable(4, "request", False)
self.request_var.set_writable()
dt = ua.DataValue(ua.Variant(
0, ua.VariantType.Int16)) # to ensure correct data type
self.state_num = next_state_choice.add_variable(4, "state_num", dt)
self.state_num.set_writable()
self.next_state_possibilities = horse.add_variable(
4, "next_state_possibilities", [1, 70, 80])
self.change_state(start_state)
print(
f"Server is in state {self.actual_state_num.get_value()} and the possibilities are {type(self.next_state_possibilities.get_value())}"
)
self.start() # start the server
self.mic_active.set_value(False)
subHandler = SubHandler(self)
sub = self.server.create_subscription(500, subHandler)
handle = sub.subscribe_data_change(self.request_var)
handle_response = sub.subscribe_data_change(response_string)
handle_actual = sub.subscribe_data_change(self.actual_state_num)
# while True:
try:
print("Server started.")
while True:
# print("mic mic", self.mic_active.get_value())
# time.sleep(10) # the variable "mic_active" will be changed periodically every 10 seconds in this loop
# change the mic_active (if True -> False, if False -> True)
# mic_active.set_value(not mic_active.get_value())
inp = readInput("", timeout=10)
if inp == "q":
break
elif inp == "r":
self.mic_active.set_value(True)
print(
f"Variable 'mic_active' changed to {self.mic_active.get_value()}."
)
elif inp == "w":
self.mic_active.set_value(False)
print(
f"Variable 'mic_active' changed to {self.mic_active.get_value()}."
)
except KeyboardInterrupt:
print("User requested interruption.")
except Exception:
exc_type, exc_value, exc_traceback = sys.exc_info()
traceback.print_exception(exc_type,
exc_value,
exc_traceback,
limit=2,
file=sys.stdout)
sub.unsubscribe(handle) # cancel subscription
sub.unsubscribe(handle_response) # cancel subscription
sub.unsubscribe(handle_actual) # cancel subscription
sub.delete()
def change_state(self, next_state):
current_state = str(self.actual_state_num.get_value())
print(f"Changing state from {current_state} to {next_state}.")
if current_state in self.state_descriptions:
self.next_state_possibilities.set_value(
self.state_descriptions[current_state])
self.actual_state_num.set_value(next_state)
def check_current_state(self):
state = str(self.actual_state_num.get_value())
if state in self.state_descriptions:
next_states = self.state_descriptions[state]
# self.next_state_possibilities = horse.add_variable(4, "next_state_possibilities", next_states)
self.next_state_possibilities.set_value(next_states)
# self.next_state_possibilities.set_value = next_states
if len(next_states) == 1:
next_state = next_states[0]
# print(self.next_state_description)
if str(next_state) in self.next_state_description:
print(
f"Current state {state} has single next state: {next_state}"
)
print(self.next_state_possibilities)
print(self.actual_state)
self.mic_active.set_value(True)
else:
print(
f"Current state {state} does not require user input, skipping to next state: {next_state}"
)
self.actual_state_num.set_value(next_state)
self.mic_active.set_value(False)
else:
print(
f"Current state {state} has multiple choices: {next_states}"
)
self.mic_active.set_value(True)
else:
print("Current state is not in the state description file!")
def start(self):
self.server.start()
return self.server
def stop(self):
self.server.stop()
logging.basicConfig(level=logging.WARN)
#logger = logging.getLogger("opcua.address_space")
# logger.setLevel(logging.DEBUG)
#logger = logging.getLogger("opcua.internal_server")
# logger.setLevel(logging.DEBUG)
#logger = logging.getLogger("opcua.binary_server_asyncio")
# logger.setLevel(logging.DEBUG)
#logger = logging.getLogger("opcua.uaprocessor")
# logger.setLevel(logging.DEBUG)
# now setup our server
server = Server()
#server.disable_clock()
#server.set_endpoint("opc.tcp://localhost:4840/freeopcua/server/")
server.set_endpoint("opc.tcp://0.0.0.0:4840/freeopcua/server/")
server.set_server_name("FreeOpcUa Example Server")
# setup our own namespace
uri = "http://examples.freeopcua.github.io"
idx = server.register_namespace(uri)
# create a new node type we can instantiate in our address space
dev = server.nodes.base_object_type.add_object_type(0, "MyDevice")
dev.add_variable(0, "sensor1", 1.0)
dev.add_property(0, "device_id", "0340")
ctrl = dev.add_object(0, "controller")
ctrl.add_property(0, "state", "Idle")
# populating our address space
# First a folder to organise our nodes
while True:
client.loop()
if __name__ == "__main__":
client = mqtt.Client()
client.on_connect = on_connect
client.on_message = on_message
client.connect(server_url, server_port, 60)
time.sleep(.1)
send_thread = threading.Thread(target=loop)
send_thread.start()
server = Server()
server.set_endpoint(f"opc.tcp://{opc_url}:4840/eztelemetry/server/")
server.set_server_name("EZTelemetry")
# set all possible endpoint policies for clients to connect through
server.set_security_policy([
ua.SecurityPolicyType.NoSecurity,
ua.SecurityPolicyType.Basic256Sha256_SignAndEncrypt,
ua.SecurityPolicyType.Basic256Sha256_Sign
])
# setup our own namespace
uri = "http://colton.levelops.com"
idx = server.register_namespace(uri)
# populating our address space
# First a folder to organise our nodes
device_folder = server.nodes.objects.add_folder(idx, "Devices")
# starting!
class OpcUaConnectorGeneralTest(ConnectorTestBase):
def test_number_one(self):
self._create_connector("connection_test.json")
self.assertTrue(self.connector is not None)
self.check_or_create_server()
self.connector.open()
def check_or_create_server(self):
if not hasattr(self, "test_server"):
self.test_server = Server()
self.__server_thread = Thread(target=self.__server_run, name="Test OPC UA server", args=(self.test_server,))
self.assertTrue(self.test_server is not None)
def __server_run(self, test_server):
self.test_server = test_server
class SubHandler(object):
def datachange_notification(self, node, val, data):
print("Python: New data change event", node, val)
def event_notification(self, event):
print("Python: New event", event)
@uamethod
def multiply(parent, x, y):
return x * y
self.test_server.set_endpoint("opc.tcp://0.0.0.0:4840/freeopcua/server/")
self.test_server.set_server_name("Test Server")
self.test_server.set_security_policy([
ua.SecurityPolicyType.NoSecurity,
ua.SecurityPolicyType.Basic256Sha256_SignAndEncrypt,
ua.SecurityPolicyType.Basic256Sha256_Sign])
uri = "http://127.0.0.1"
idx = self.test_server.register_namespace(uri)
device = self.test_server.nodes.objects.add_object(idx, "Device1")
name = self.test_server.nodes.objects.add_variable(idx, "serialNumber", "TEST")
name.set_writable()
temperature_and_humidity = device.add_object(idx, "TemperatureAndHumiditySensor")
temperature = temperature_and_humidity.add_variable(idx, "Temperature", 56.7)
humidity = temperature_and_humidity.add_variable(idx, "Humidity", 68.7)
battery = device.add_object(idx, "Battery")
battery_level = battery.add_variable(idx, "batteryLevel", 24)
device.add_method(idx, "multiply", multiply, [ua.VariantType.Int64, ua.VariantType.Int64], [ua.VariantType.Int64])
self.test_server.start()
try:
while self.server_running:
sleep(.1)
finally:
self.test_server.stop()
def stop_test_server(self):
self.server_running = False
def tearDown(self):
super().tearDown()
self.stop_test_server()
import sys
import psutil
sys.path.insert(0, "..")
import time
from opcua import ua, Server
from opcua.server.history_sql import HistorySQLite
if __name__ == "__main__":
# setup our server
server = Server()
server.set_endpoint("opc.tcp://0.0.0.0:4840/freeopcua/server/")
server.set_server_name("PTB Metrology Cloud Measuring Device")
# setup our own namespace, not really necessary but should as spec
uri = "http://examples.freeopcua.github.io"
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, "System Load",
ua.Variant(psutil.cpu_percent(interval=1), ua.VariantType.Double))
myvar.set_writable() # Set MyVariable to be writable by clients
