Allen-Bradley controllogix 1756-L55M12, User Manual

Page: 120 / 142

Publication 1756-UM001G-EN-P - January 2007
120 Maintain Nonvolatile Memory
Choose a Controller That
Has Nonvolatile Memory
These ControlLogix controllers have nonvolatile memory.
ControlLogix Controllers and Nonvolatile Memory
Prevent a Major Fault During a Load
If the major and minor revisions of the project in nonvolatile memory
do not match the major and minor revisions of the controller, a major
fault may occur during a load.
Controller Cat. Number Firmware Revision Requires a 1784-CF64 Industrial
CompactFlash memory card
ControlLogix5555 1756-L55M22 10. x or later No
1756-L55M23 8. x or later No
1756-L55M24 8. x or later No
ControlLogix5560M03SE 1756-L60M03SE 13. x or later Yes
ControlLogix5561 1756-L61 12. x or later Yes
ControlLogix5562 1756-L62 12. x or later Yes
ControlLogix5563 1756-L63 11. x or later Yes
ControlLogix5564 1756-L64 16 or later Yes
Controller Consequences
Does not use a
CompactFlash card Make sure that the major and minor revisions of the project in nonvolatile memory match the
major and minor revisions of the controller.
The nonvolatile memory of the controller stores only the project. It does not store the
firmware for the controller.
Uses a CompactFlash
card The CompactFlash card stores the firmware for projects
≥
12.0. Depending on the current
revision of the controller, you may be able to use the CompactFlash card to update the
firmware of the controller and load the project.