https://forge.codesys.com/forge/talk/Engineering/thread/aedd014bce/2022-11-24T18:46:09.420000ZRecent posts to OpcUa Client Error 70012022-11-24T18:46:09.420000Z2022-11-24T18:46:09.420000Zi-campbellhttps://forge.codesys.com/u/i-campbell/https://forge.codesys.com651828b97a5ff670f59083248b122361a5763dc8

<div class="markdown_content"><p>There is a hard-coded limit of ten TLSContexts in the runtime. So if you don't use encryption, you should be able to connect to a few more, maybe 60?</p> <p>If you need more, well its convincing CODESYS that you need more and have them to change the magic number in a future release.</p></div>

2022-11-24T18:35:55.926000Z2022-11-24T18:35:55.926000Zvaladiskottashttps://forge.codesys.com/u/valadiskottas/https://forge.codesys.com5152b899fb6e7860913137f6971a29bbd8c2952a

<div class="markdown_content"><p>Hello,<br/> I have a similar problem.<br/> I have 30 PLCs Raspberry Pi (V4.5.0.0) which are running OpcUA Server.<br/> My OpcUA Client runs on windows pc (CodeSys Control win64 V3.5.18.20).<br/> My problem is that the Client cannot be connected too more than 10 Servers at the same time.<br/> The Servers that failed to be connect have the error message:<br/> Communication failure in data sources OPC UA library. Exact error was not specified. Error ID 7001.<br/> All Servers are Tested and communicate well with the client if are not exceed the number of 10 at the same time!!</p></div>

2022-10-28T17:14:58.641000Z2022-10-28T17:14:58.641000Zpavledjohttps://forge.codesys.com/u/pavledjo/https://forge.codesys.com448bf44f863ef96516d9e70a817df1f1f465948b

<div class="markdown_content"><p>Hello, <br/> I am using Codesys V3.5 SP18 Patch 18.<br/> I am trying to make OpcUa Server/Client on two PLCs. Configured the server normally and read all variables from server using UA Expert.<br/> But when starting client on Codesys trough datasource i got error 7001.<br/> Communication failure in data sources OPC UA library. Exact error was not specified.<br/> Does anybody have idea what problem could be?</p></div>