https://forge.codesys.com/forge/talk/Engineering/thread/7d9775b8a0/2023-04-04T09:42:37.462000ZRecent posts to CODESYS OPC DA Server SL Memory Issue2023-04-04T09:42:37.462000Z2023-04-04T09:42:37.462000Zalexgooihttps://forge.codesys.com/u/alexgooi/https://forge.codesys.comc5e4ba823b15e71ca1a65db61cf2353724689ab8

<div class="markdown_content"><p>Dear Forum, </p> <p>We are currently running into a problem that the CODESYS OPC DA server is running out of RAM (larger than 2 GB). </p> <p>We have a setup of 10 Codesys controllers which features around 300.000 discoverable tags per controller.<br/> We are only interested in 10 percent of the tags to be communicated to the OPC-server, this is due to the fact the program consists of arrays of objects which on their part implements arrays of objects, <strong>simply reducing the number of discoverable tags is not an option</strong></p> <p>The OPC-DA server loads all the discoverable tags, is it possible to:</p> <p>1 let the OPC-DA server only load the tags that are requested by the SCADA/MES system.<br/> 2 let the OPC-DA server claim more memory.<br/> 3 run 2 OPC-DA servers in parallel? </p> <p>Thank you in advance</p></div>