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AVEVA™ Plate and Bar Nesting

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Effect of Modifications on Dynamic Rules

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  • Last UpdatedMay 24, 2022
  • 1 minute read

A dynamic rule will automatically respond to changes which affect the attributes referred to in the rule.

For example, we set a rule on YLEN of /MYBOX to be (YLEN OF /FRED * 2). Thus if YLEN on /FRED changes then YLEN on /MYBOX will be updated automatically. However there are reasons why the automatic propagation of dynamic rules may fail, as follows:

  1. The elements are in different DBs and the DB containing /MYBOX is not in the MDB

  2. The elements are in different DBs and the DB containing /MYBOX is read only

  3. It is not possible to claim /MYBOX

  4. /MYBOX is locked

  5. There is a DAC preventing the change

Note also that only static rules are not automatically updated. For these reasons there are commands to verify that rule results are up to date.