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OPCUA_Client can't connect

Forum: Engineering 🇬🇧

Created: 2021-09-28

Updated: 2021-10-07

weii - 2021-09-28

I tried to use OPC UA client Example to connect it with OPC UA Simulation Server.
But they can’t continue when they are connected (as shown in the file), why???

Inked1_LI.jpg

Inked2_LI.jpg

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eschwellinger - 2021-09-28

Since 3.5SP17 release this OPC UA Client exmaple is not really needed.
Just add DataSource Manager is the recommended to have an easy OPC UA client solution.

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1

OPCUA_Client.jpg

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- weii - 2021-09-29
  
  thanks.
  I try to work.
  
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mauda - 2021-09-29

Dear eschwellinger,

thank you for your Description. I try to connect to an Codesys OPC UA Server, which is running on a Raspberry Pi 4B, via the DataSource Manager. Everytime, when I want to connect with the server, I get the following Error-Diagnostics:

"The server is not supporting the requested Message Security Mode or Security Policy - Error-ID: 7003"

I am using the Server according the following instructions https://help.codesys.com/webapp/_cds_runtime_opc_ua_server;product=codesys;version=3.5.17.0 with certificates.

The OPC UA Client is configured without any Security Mode or Security Policy - I tried every configuration - nothing worked.

Can you provide some help for this problem?

Thank you in Advance

Last edit: mauda 2021-09-29

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Thomas - 2021-09-29

Dear Mauda,
do you have configured the anonymos login:

https://faq.codesys.com/display/CDSFAQ/OPC+UA+Server%3A+Anonymous+login

Regards

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- mauda - 2021-10-01
  
  Dear Thomas,
  
  thank you for your help. After trying out this configuration for the device, I got the following error code:
  
  "Error in the OPC UA function BadDataUnavailable, Error-ID: 268468382".
  
  What is wrong with my configuration?
  
  I tried to connect with the UA Expert to verify my OPC UA Server Settings. It works without any problems!
  
  Thank you in Advance!
  
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eschwellinger - 2021-10-05

Hi,
attached a project example two PI's - communication with OPC UA - PI MC is OPCUA-Server PI SL is OPCUA-Client.

Last edit: eschwellinger 2021-10-05

OPCUAServer_und_Client_PI.project

UAServer_andClient_onPI.jpg

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- weii - 2021-10-07
  
  Dear eschwellinger,
  
  Which version is yours, please?
  My Visualation can't be run.
  
  My version is 3.5SP17
  
  1.png
  
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