Making runtime changes

Changes made to the development environment that can be transferred to the application while it is running are commonly called runtime edits.
Runtime edits fall into four groups:
  • Changes that take effect immediately.
  • Changes that require a non-disruptive action, such as reopening a graphic display, before they take effect.
  • Changes that require a disruptive action, such as restarting a server or a runtime client, before they take effect.
  • Changes that cause adverse effects immediately.
Warnings have been added to
FactoryTalk
 to tell users if making a particular change in the development environment will adversely affect the runtime system. If the change is made through a dialog box, a warning icon appears next to the component where the change can be made. When the mouse cursor hovers over the icon, the following warning is displayed:
Modifying this data at run time could cause unexpected results. See 'Making run-time changes in FactoryTalk applications' in the online help.
If the change is made through a menu item, a warning message is displayed when the user clicks the menu item.
When you see the icon or warning message, it indicates that if the change is made while the application is running, it will have one or more of the following adverse effects:
  • One or more of the runtime clients (for example, the
    FactoryTalk View SE
     Client) might become unresponsive (for example, does not respond to mouse input).
  • One or more of the runtime clients might stop displaying correct data (for example, a changing tag value is not reflected in the client).
  • One or more of the
    FactoryTalk View
     processes could fail.
Changes that cause adverse affects
Changes that might cause adverse effects include the following:
  • Editing the name of a computer hosting a
    FactoryTalk Linx
     or OPC server
  • Editing the redundancy properties of a
    FactoryTalk Linx
     server
  • Deleting a server (OPC,
    FactoryTalk Linx
    , or HMI)
  • Deleting an area
  • Modifying
    FactoryTalk Linx
     shortcut information
  • Modifying the contents of the
    FactoryTalk Linx
    Communications
     tab
  • Disabling
    FactoryTalk
     alarms and events support while a
    FactoryTalk View SE
     Display Client is running and displaying
    FactoryTalk
     alarm and event information
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