Store and Load a Project from a Memory Card
Safety controllers support firmware updates and user program storage and retrieval with a memory card.
When you store a safety project on a memory card, we recommend that you select Remote Program as the Load mode. The Load mode specifies the mode that the controller enters after a project load. Before system operation, operator intervention is required to start the controller.
You can initiate a load from a memory card only under these conditions:
- If the controller type specified by the project that is stored on the memory card matches your controller type.
- If the major and minor revisions of the project on the memory card match the major and minor revisions of your controller.IMPORTANT: A revision mismatch helps prevent only user-initiated loads. Controller-initiated loads overwrite the firmware on the controller with the contents of the memory card.
- If your controller is not in Run mode.
Loading a project to a safety-locked controller is allowed only when the safety signature of the project that is stored on the memory card matches the project on the controller. If the signatures do not match or the controller is safety-locked without a safety signature, you must first unlock the controller before attempting to update the controller via a memory card.
IMPORTANT:
If you unlock the controller and initiate a load from the memory card, the safety-lock status, passwords, and safety signature are then set to the values contained on the memory card once the load is complete.
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