Rockwell Automation 1756-SPESMNRMXT GuardLogix Controllers User Manual - Manuel (Page 119)

Rockwell Automation Publication 1756-UM020I-EN-P - August 2012 119
Chapter
8
Store and Load Projects Using Nonvolatile
Memory
Using Memory Cards for
Nonvolatile Memory GuardLogix controllers, revision 18 or later, support a memory card for
nonvolatile memory. Nonvolatile memory lets you keep a copy of your project on
the controller. The controller does not need power or a battery to keep this copy.
You can load the stored project from nonvolatile memory to the user memory of
the controller:
• On every powerup
• Whenever there is no project in the controller and it powers up
• Anytime through RSLogix 5000 software
Topic Page
Using Memory Cards for Nonvolatile Memory 119
Storing a Safety Project 120
Loading a Safety Project 121
Use Energy Storage Modules (1756-L7xS controllers only) 122
Estimate the ESM Support of the WallClockTime 124
Manage Firmware with Firmware Supervisor 124
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, tag values, or a ControlNet
network schedule, store the project again after you make the changes.