Rockwell Automation 1756-Lx_Mx ControlLogix Controller and Memory Board Installation Instructions - Manuel (Page 28)

28 ControlLogix® Controller and Memory Board
Publication 1756-IN101J-EN-P - November 2004
3. Did you replace a memory board with a memory board that
has a different catalog number? For example, did you replace
a 1756-M13 memory board with a 1756-M23 memory board?
4. Re-install the previous memory board.
5. Update the firmware of the controller to a revision that is
compatible with the memory board that you intend to install.
See “Determine Which Firmware Revisions to Use” on
page 10.
6. Install the new memory board.
7. What color is the OK LED?
If: Then:
No The controller is not operational. Contact your Rockwell
Automation representative or local distributor.
Yes Go to step 4.
If: Then:
solid green No further actions are required. However, the revision of
firmware must be compatible with your revision of RSLogix 5000
software.
solid red The controller is not operational. Contact your Rockwell
Automation representative or local distributor.