Online Firmware Updates

You can update firmware for redundancy systems, including Logix SIS, while the system is online by using the Redundancy System Update (RSU) feature. The RSU feature is not required to update firmware when the system is offline.
To access release notes for each redundancy firmware revision, see the Product Compatibility and Download Center at rok.auto/pcdc.
The RSU feature has these restrictions:
  • RSU can only update redundancy bundles to other redundancy bundles.
  • RSU cannot jump major revisions. You can use RSU to update the system to only the next major revision. If the target revision is multiple major revisions later than the current revision, you must repeat the RSU process multiple times.
  • RSU can only update a redundancy system to a later firmware bundle.
  • RSU cannot move a redundancy system to an earlier firmware bundle.
  • RSU cannot upgrade a redundancy system to a new controller family. For example, you cannot use RSU to upgrade from a
    ControlLogix®
     5580 controller to a
    ControlLogix®
     5590 controller.
  • The firmware of every module in the system must be at the same revision or higher in the bundle being updated to. See the Knowledgebase Technote
    ControlLogix: Redundancy Firmware Bundle Revision History
    .
  • A replacement controller must have memory equal to or greater than the memory in the original controller.
  • Do not exceed 520 class 3 messages or HMI connections when you attempt to do an update with RSU or the lock for update could fail.
If the lock for update fails when you attempt to use RSU, see the Knowledgebase Technote
Lock for Update Fails
.
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