https://forge.codesys.com/forge/talk/Engineering/thread/743065faa8/2023-08-23T21:24:26.972000ZRecent posts to OPC UA Server limitations, large array crashes runtime2023-08-23T21:24:26.972000Z2023-08-23T21:24:26.972000Zjandersonhttps://forge.codesys.com/u/janderson/https://forge.codesys.comdffa099cd23f41131c8073905475fd306fc6001b

<div class="markdown_content"><p>when using an array of structs, the runtime crashes. but when using an array of LREALS, it'll do 100k at least</p></div>

2023-08-23T19:48:13.354000Z2023-08-23T19:48:13.354000Zjandersonhttps://forge.codesys.com/u/janderson/https://forge.codesys.com8c7d91b79c7c55c8d0780ee512229e078cece4ce

<div class="markdown_content"><p>What are the limitations of the OPC UA Server? <br/> I am trying to get data off my PLC that is acquired at high rates (~50k samples/s) so I am storing them in arrays and trying to get the arrays off the PLC. </p> <p>When I attempt to read a ~200k element array through OPC UA the server and runtime crashes (requiring tools -&gt; update linux arm64 -&gt; start runtime).</p> <p>Is there a better way to get highspeed data off? The ACDatalog library seems a bit irritating to use so I would prefer to go through OPC UA.</p></div>