188 Rockwell Automation Publication 1769-UM022C-EN-P - June 2018
Chapter 13 Store and Load Programs with a Secure Digital Card
You can load the stored project from nonvolatile memory to the user memory
of the controller:
•On every power-up
• Whenever there is no project in the controller and it powers up
• Anytime through the programming software
If a SD card is installed, you can view the contents of the card on the
Nonvolatile Memory tab of the Controller Properties dialog box. If a safety
application is stored on the card, the safety-lock status and the safety task
signature are shown.
IMPORTANT Nonvolatile memory stores the contents of the user memory at the time
that you store the project:
• Changes that you make after you store the project are not reflected in
nonvolatile memory.
• If you make changes to the project but do not store those changes, you
overwrite them when you load the project from nonvolatile memory. If
this occurs, you have to upload or download the project to go online.
• If you want to store changes, such as online edits or tag values, store
the project again after you make the changes.
ATTENTION: Do not remove the SD card while the controller is reading from
or writing to the card, as indicated by a flashing green SD status indicator.
This could corrupt the data on the card or in the controller, as well as corrupt
the latest firmware in the controller. Leave the card in the controller until the
SD status indicator turns solid green.
WARNING: When you insert or remove the SD card while power is on, an
electrical arc can occur. This could cause an explosion in hazardous location
installations.
Be sure that power is removed or the area is nonhazardous before proceeding.
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