Disconnection of server session after 1 minute-TimeoutError

[Alex77]

Hello Guys,

Using your library, my client app consists of reading on a dashboard these nodes : air flow, pressure, temperature and position.

After one minute and few secondes of good function, the server stops to operate and display the following error:

---------------Here a tracback:

Connected to: opc.tcp://192.168.0.10:4840
Starting dashboard...
2023-12-27 13:54:47.471348
2023-12-27 13:54:48.796348
2023-12-27 13:54:50.192348
2023-12-27 13:54:51.483348
2023-12-27 13:54:52.769348
2023-12-27 13:54:54.059348
2023-12-27 13:54:55.394348
2023-12-27 13:54:56.711348
2023-12-27 13:54:58.084348
2023-12-27 13:54:59.477348
2023-12-27 13:55:00.979348
2023-12-27 13:55:02.339348
2023-12-27 13:55:03.656348
2023-12-27 13:55:05.057348
2023-12-27 13:55:06.434348
2023-12-27 13:55:07.813348
2023-12-27 13:55:09.212348
2023-12-27 13:55:10.573348
2023-12-27 13:55:11.970348
2023-12-27 13:55:13.360348
2023-12-27 13:55:14.687475
2023-12-27 13:55:16.061475
2023-12-27 13:55:17.540475
2023-12-27 13:55:18.945475
2023-12-27 13:55:20.353475
2023-12-27 13:55:21.679475
2023-12-27 13:55:23.074475
2023-12-27 13:55:24.476475
2023-12-27 13:55:25.897475
2023-12-27 13:55:27.251475
2023-12-27 13:55:28.581475
Traceback (most recent call last):
File "C:\Disc Alex\DashBoard\Send_to_database.py", line 75, in get_opcua_data
position_dat = position_node.get_value()
^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Disc Alex\DashBoard\venv\Lib\site-packages\opcua\common\node.py", line 155, in get_value
result = self.get_data_value()
^^^^^^^^^^^^^^^^^^^^^
File "C:\Disc Alex\DashBoard\venv\Lib\site-packages\opcua\common\node.py", line 164, in get_data_value
return self.get_attribute(ua.AttributeIds.Value)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Disc Alex\DashBoard\venv\Lib\site-packages\opcua\common\node.py", line 275, in get_attribute
result = self.server.read(params)
^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Disc Alex\DashBoard\venv\Lib\site-packages\opcua\client\ua_client.py", line 347, in read
data = self._uasocket.send_request(request)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Disc Alex\DashBoard\venv\Lib\site-packages\opcua\client\ua_client.py", line 83, in send_request
data = future.result(self.timeout)
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.11_3.11.2032.0_x64__qbz5n2kfra8p0\Lib\concurrent\futures_base.py", line 458, in result
raise TimeoutError()
TimeoutError
Error 4:
disconnection
2023-12-27 13:55:33.559475
2023-12-27 13:55:34.935475
2023-12-27 13:55:36.340475
2023-12-27 13:55:37.648475
2023-12-27 13:55:39.061475
2023-12-27 13:55:40.423475
2023-12-27 13:55:41.816475
2023-12-27 13:55:43.149475
2023-12-27 13:55:44.540475
2023-12-27 13:55:45.935475
2023-12-27 13:55:47.332475
2023-12-27 13:55:48.646475
2023-12-27 13:55:50.051475
2023-12-27 13:55:51.462475
2023-12-27 13:55:52.877475
2023-12-27 13:55:54.212475
2023-12-27 13:55:55.593475
2023-12-27 13:55:57.019475
2023-12-27 13:55:58.405475
2023-12-27 13:55:59.721475
2023-12-27 13:56:01.070475
2023-12-27 13:56:02.430475
2023-12-27 13:56:03.764475
2023-12-27 13:56:05.122475
2023-12-27 13:56:06.525475
2023-12-27 13:56:07.874475
2023-12-27 13:56:09.182475
2023-12-27 13:56:10.552475
2023-12-27 13:56:11.936475
2023-12-27 13:56:13.294475
2023-12-27 13:56:14.623558
2023-12-27 13:56:16.022558
2023-12-27 13:56:17.425558
2023-12-27 13:56:18.778558
2023-12-27 13:56:20.111558
2023-12-27 13:56:21.477558
2023-12-27 13:56:22.859558
2023-12-27 13:56:24.240558
2023-12-27 13:56:25.602558
2023-12-27 13:56:26.996558
2023-12-27 13:56:28.365558
2023-12-27 13:56:29.676558
2023-12-27 13:56:31.057558
2023-12-27 13:56:32.443558
2023-12-27 13:56:33.819558
2023-12-27 13:56:35.144558
2023-12-27 13:56:36.535558
2023-12-27 13:56:37.937558
2023-12-27 13:56:39.315558
2023-12-27 13:56:40.637558
2023-12-27 13:56:42.024558
2023-12-27 13:56:43.425558
2023-12-27 13:56:44.812558
2023-12-27 13:56:46.129558
2023-12-27 13:56:47.545558
2023-12-27 13:56:48.960558
2023-12-27 13:56:50.327558
2023-12-27 13:56:51.658558
2023-12-27 13:56:53.035558
2023-12-27 13:56:54.437558
2023-12-27 13:56:55.826558
2023-12-27 13:56:57.148558
2023-12-27 13:56:58.510558
Traceback (most recent call last):
File "C:\Disc Alex\DashBoard\Suivi_conso.py", line 613, in get_opcua_data
Temperature_remontee = temperature_node.get_value()
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Disc Alex\DashBoard\venv\Lib\site-packages\opcua\common\node.py", line 155, in get_value
result = self.get_data_value()
^^^^^^^^^^^^^^^^^^^^^
File "C:\DiscAlex\DashBoard\venv\Lib\site-packages\opcua\common\node.py", line 164, in get_data_value
return self.get_attribute(ua.AttributeIds.Value)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Disc Alex\DashBoard\venv\Lib\site-packages\opcua\common\node.py", line 275, in get_attribute
result = self.server.read(params)
^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Disc Alex\DashBoard\venv\Lib\site-packages\opcua\client\ua_client.py", line 347, in read
data = self._uasocket.send_request(request)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Disc Alex\DashBoard\venv\Lib\site-packages\opcua\client\ua_client.py", line 83, in send_request
data = future.result(self.timeout)
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.11_3.11.2032.0_x64__qbz5n2kfra8p0\Lib\concurrent\futures_base.py", line 458, in result
raise TimeoutError()
TimeoutError
Error 5:

Process finished with exit code 1

---

Thanks a lot for your help :)

Happy Mery Christmas for all :)