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FreeOpcUa / python-opcua

LGPL Pure Python OPC-UA Client and Server
http://freeopcua.github.io/
GNU Lesser General Public License v3.0
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Python OPC UA server with Matrikon Tunneller #1010

Open dns28 opened 4 years ago

dns28 commented 4 years ago

Hello everyone,

I have an OPC UA server running fine using this python library. I can access the tags using UaExpert without problems.

Now I need to use Matrikon OPC Tunneller to be able to get data from a OPC DA Client. The tunneller can establish the connection to the OPC UA server but can't create subscriptions. I asked help to Matrikon and they tried to solve the problem but they say that this python OPC UA library is not fully compliant.

The log file from tunneller is below:

04/27 12:09:37.452 CPSTServer::Run Service started. ProgId = [UAProxy.freeopcua_python_server.1] 04/27 12:09:51.969 CFOPCServer::CreateInstance Creating new instance of the OPC Server 04/27 12:09:51.985 Com2UaOpcServer::Init Initializing OPC Server object for the client : DESKTOP-PGTCHBV\siemens. 04/27 12:09:51.985 Com2UaSession::Connect Security Policy URI: http://opcfoundation.org/UA/SecurityPolicy#None 04/27 12:09:51.985 Com2UaSession::Connect Session User Identity Token Type: Anonymous 04/27 12:09:52.047 Com2UaSession::GetOperationLimits Vendor info: Matrikon International +1-780-945-4011 http://www.matrikonopc.com 04/27 12:09:52.063 Com2UaSession::GetOperationLimits Maximum Monitored Items Per Call: 4294967295 04/27 12:09:52.078 Com2UaSession::GetOperationLimits Maximum Nodes Per Browse Call: 4294967295 04/27 12:09:52.094 Com2UaSession::GetOperationLimits Maximum Nodes Per Read Call: 4294967295 04/27 12:09:52.110 Com2UaSession::GetOperationLimits Maximum Nodes Per Write Call: 4294967295 04/27 12:09:52.110 Com2UaSession::Connect Session: Matrikon OPC UA Proxy from OPC Client DESKTOP-PGTCHBV\siemens\1 created successfully. MaxRequestMessageSize: 65536, RequestedSessionTimeout: 1200000, RevisedSessionTimeout: 1200000 04/27 12:09:52.110 Com2UaBranch::Init Obtained server. 04/27 12:09:52.110 Com2UaOpcServer::CreateBrowser Initializing browser for client : DESKTOP-PGTCHBV\siemens 04/27 12:09:52.110 Com2UaBranch::Init Obtained browser. 04/27 12:09:52.110 Com2UaBranch::Init Rebrowsing. 04/27 12:09:52.829 Com2UaBranch::Init Rebrowsed. 04/27 12:09:52.829 CPSTServer::ClientUp CLIENT CONNECTION: DESKTOP-PGTCHBV\siemens, 1 clients connected. 04/27 12:09:52.829 CFOPCServer::CreateInstance Object creation result code is [0x0] 04/27 12:09:55.985 IsLicensed License state is changed from UNLICENSED to LICENSED. 04/27 12:09:55.985 Com2UaSubscription::CreateUaSubscription CreateSubscription successful for group: Group0. UA Server SubscriptionId: 2912, UA Client SubscriptionId: 18468, Requested Publishing Interval: 1000 04/27 12:09:55.985 ComOpcGroup2UaSubscription::CreateUaSubscription Subscription 2912 created successfully for group: Group0 04/27 12:09:56.032 Com2UaSubscription::SetPublishingMode SetPublishingMode failed for group: Group0. Error Message: 0x80400000: Requested operation is not implemented 04/27 12:09:56.048 Com2UaSubscription::ModifySubscription ModifySubscription failed for group: Group0 since UA server returned invalid publishing interval: 0.000000. Reseting publishing interval to existing value. Error Message: 0x0: Success 04/27 12:09:56.063 Com2UaSubscription::SetPublishingMode SetPublishingMode failed for group: Group0. Error Message: 0x80400000: Requested operation is not implemented 04/27 12:09:56.079 Com2UaSubscription::SetPublishingMode SetPublishingMode failed for group: Group0. Error Message: 0x80400000: Requested operation is not implemented 04/27 12:09:56.095 Com2UaSubscription::DeleteUaSubscription DeleteSubscriptions response result: 0x0: Success. Group Name: Group0 04/27 12:09:56.095 Com2UaSubscription::DeleteUaSubscription UA Subscription deleted for group: Group0

Has anyone experience working with this library with Matrikon OPC Tunneller?

Your help is much appreciated.

zerox1212 commented 4 years ago

Maybe the server doesn't have SetPublishingMode implemented. I'm not sure what this does; would need to check UA spec.

brubbel commented 4 years ago

The fastest way to get help here is to provide an example, which describes the exact steps to reproduce the problem. In this case, the setup of the freeopcua server, matrikon tunneller, plus a dummy DA device to connect to.

dns28 commented 4 years ago

Hi everyone,

The code of the python OPC UA server is attached. opc_server.txt

Basically it takes data from a database and creates one OPC UA tag for each row of the results. The OPC UA server implementation is pretty much the server sample code provided in GitHub.

This works fine with UaExpert. Do I need to add something to support subscriptions?

Many thanks