OPCUA array max length?

gurkan
2024-02-16
2024-02-19
  • gurkan - 2024-02-16

    We are using codesys 3.5.16.30 and we have a array with strings of length 5000.

    We are having issues subscribing to this variable from an OPCUA client.

    Is there any limit in the OPCUA Server in codesys for how long an array can be on the opcua server?

     
  • paro - 2024-02-17

    I think the amount of data is already relatively high and maybe it has something to do with that?
    Maybe also the CPU load of your device?

    an array with string(5000)? and have you tested with how many array elements it still works?

     
  • gurkan - 2024-02-19

    2000 works.

    When testing with UA Expert there is a timeout from the OPCUA Server when trying to subscribe to the variable

    CPU do not seems to be to affected. The memory(RAM) however is building up

     

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