def conn_opc():
# OPCサーバに接続
cl = Client("opc.tcp://192.168.10.5:51110/CogentDataHub/DataAccess")
# クライアント証明書のapplication_uri
cl.application_uri = "urn:desktop-i50i89m:Cogent DataHub"
# policy設定
print("secPolicy: " + str(secPolicy))
if secPolicy != policies[0]: # None以外の場合SecurityPolicyを設定
mode = ua.MessageSecurityMode.SignAndEncrypt
pc = getattr(security_policies, 'SecurityPolicy' + secPolicy)
# 第二引数：クライアント証明書
cl.set_security(
pc, "/Users/watarium/PycharmProjects/opcua/OPCUA_CL.der",
"/Users/watarium/PycharmProjects/opcua/OPCUAClient.pem",
"/Users/watarium/PycharmProjects/opcua/OPCUAServer.der", mode)
# 認証設定
if setCert == certs[1]: # user/pass
cl.set_user("admin")
cl.set_password("1234")
elif setCert == certs[2]: # certificate
cl.load_private_key(
"/Users/watarium/PycharmProjects/opcua/OPCUAClient.pem")
cl.load_client_certificate(
"/Users/watarium/PycharmProjects/opcua/OPCUA_CL.der")
try:
# 接続
print("Policy: {0}, Certificate: {1}".format(secPolicy, setCert))
print("---------------------Connection start-----------------------")
cl.connect()
sleep(5)
# 情報取得
ep = cl.get_endpoints()
print(ep[0].Server.ApplicationUri)
root = cl.get_root_node()
print("Objects node is: ", root)
print(cl.get_namespace_array())
print(cl.get_namespace_index('urn:win-9hi38ajrojd:Cogent DataHub'))
#これがうまくいかなかった（2019/06/27）
#node = cl.get_node('ns=1;s=xxxxx')
#print(node.get_value())
#node.set_attribute(ua.AttributeIds.Value, 1)
# 切断
cl.disconnect()
print("-------------------Connection Success!!!--------------------")
except Exception as e:
print("---------------------Connection Faild!!---------------------")
print(e)
cl.disconnect()
def test_basic256(self):
client = Client("opc.tcp://" + os.environ['TEST_IP'] + ":" +
os.environ['TEST_PORT'])
client.application_uri = "urn:127.0.0.1:ASNeG:FTestClient"
client.set_security_string(
"Basic128Rsa15,SignAndEncrypt,FTestClient.der,FTestClient.pem")
client.connect()
client.disconnect()
def client_connection(index, server, security_policies_uri, printable=False):
client = Client(server["address"])
try:
best_endpoint = best_endpoint_selection(client, server, security_policies_uri, printable)
client = Client(best_endpoint.EndpointUrl)
client.application_uri = "urn:freeopcua:client"
client.description = "OPCUA-Client-Kafka-Gateway"
client = client_auth(client, server)
policy = best_endpoint.SecurityPolicyUri.split('#')[1]
if policy != "None":
security_string = str(policy) + ',' + str(MessageSecurityMode(best_endpoint.SecurityMode).name) + ',client_certificate.pem' + ',client_key.pem'
client.set_security_string(security_string)
client.connect()
return client
except Exception as ex:
#print(f"\nEXCEPTION in client connection: {ex.__class__, ex.args}")
return
from opcua import Client
from firebase import Firebase
import csv
import time
# url and security
url= 'opc.tcp://127.0.0.1:8080'
client = Client(url)
client.set_security_string("Basic256Sha256,SignAndEncrypt,certificate-example.der,private-key-example.pem") # add "server" certificate.dem file and private-key.pem file (Beckhoff_OpcUaServer.der,Beckhoff_OpcUaServer.pem)
client.application_uri = "urn:example.org:FreeOpcUa:python-opcua" # use the uri of the server. (urn:BeckhoffAutomation:TcOpcUaServer)
# client connection
client.connect()
print('CLIENT CONNECTED SUCCESSFULLY')
# firebase initialization
firebaseConfig = {
# here the firebase configuration should be entered
}
firebase = Firebase(firebaseConfig)
db = firebase.database()
with open('historyAccess_client.csv',mode='a', newline='') as historyAccess:
fieldnames= ['Temperature','Pressure','Flow','Time']
thewriter = csv.DictWriter(historyAccess,fieldnames=fieldnames)
thewriter.writeheader()
while True:
iTemp = client.get_node('ns=2;i=3')
Temperature = iTemp.get_value()
print(f'Temperature is: {Temperature}')
iprssure = client.get_node('ns=2;i=2')
Pressure = iprssure.get_value()
def create_client(uri=sUri):
client = Client(uri)
client.application_uri = "urn:S2OPC:localhost"
return client
import sys
sys.path.insert(0, "..")
import logging
from IPython import embed
from opcua import Client
if __name__ == "__main__":
logging.basicConfig(level=logging.DEBUG)
client = Client("opc.tcp://localhost:53530/OPCUA/SimulationServer/")
client.set_security_string(
"Basic256Sha256,Sign,certificate-example.der,private-key-example.pem")
try:
client.application_uri = "urn:example.org:FreeOpcUa:python-opcua"
client.secure_channel_timeout = 10000
client.session_timeout = 10000
client.connect()
root = client.get_root_node()
objects = client.get_objects_node()
print("childs og objects are: ", objects.get_children())
embed()
finally:
client.disconnect()
from opcua import Client
import flask
import time
import flask
url = "opc.tcp://192.168.1.33:48010" #server url
client = Client(url)
#set security mode and certificate. Use server's certificate instead. Certificate path need to be modified
client.set_security_string(
"Basic256,SignAndEncrypt,C:/Users/RSONG/Documents/InduSoft Web Studio v8.1 Projects/Project/Config/uaserver/own/studio.der,C:/Users/RSONG/Documents/InduSoft Web Studio v8.1 Projects/Project/Config/uaserver/own/studio.pem"
)
#Set client uri to match server's certificate
client.application_uri = "urn:DESKTOP-U34UL7P:Studio:OpcUaServer"
def connect_to_server(client):
connection_times = 0
while True:
connection_times += 1
try:
if connection_times > 100:
raise ValueError('Failed to connect to opcua server')
client.connect()
break
except:
time.sleep(1)
print(f"reconnecting to server, {connection_times} times")
continue
from opcua import Client
from firebase import Firebase
import csv
import time
import datetime
# url and security
url = 'opc.tcp://7.110.226.20:4840'
client = Client(url)
client.set_security_string(
"Basic256Sha256,SignAndEncrypt,Beckhoff_OpcUaServer.der,Beckhoff_OpcUaServer.pem"
) # add "server" certificate.dem file and private-key.pem file (Beckhoff_OpcUaServer.der,Beckhoff_OpcUaServer.pem)
client.application_uri = "urn:BeckhoffAutomation:TcOpcUaServer" # use the uri of the server. (urn:BeckhoffAutomation:TcOpcUaServer)
# client connection
client.connect()
print('CLIENT CONNECTED SUCCESSFULLY')
# firebase initialization
firebaseConfig = {
#the firebase database configuration goes here
}
firebase = Firebase(firebaseConfig)
db = firebase.database()
with open('historyAccess_client.csv', mode='a', newline='') as historyAccess:
fieldnames = ['Temperature', 'Pressure', 'Flow', 'Time']
thewriter = csv.DictWriter(historyAccess, fieldnames=fieldnames)
thewriter.writeheader()
while True:
iTemp = client.get_node('ns=4;s=MAIN.iTemp')
Temperature = iTemp.get_value()
print(f'Temperature is: {Temperature}')
