Rockwell Automation 1756-Lx_Mx ControlLogix Controller and Memory Board Installation Instructions - Manuel (Page 36)

36 ControlLogix® Controller and Memory Board
Publication 1756-IN101J-EN-P - November 2004
OK Indicator
Color Description Recommended Action
off No power is applied. When ready, turn on power
to the controller.
flashing
red If the controller is: Then:
a new controller
(just out of the box) The controller requires a
firmware update. See “Update the
Controller” on page 29.
NOT a new
controller
(previously in
operation) Major fault occurred. See “Clear a Major Fault”
on page 37.
solid red The controller detected a non-recoverable fault,
so it cleared the project from memory. See “Clear a
Non-Recoverable Fault” on
page 38.
solid
green The controller is OK None
flashing
green The controller is storing or loading a project to or
from nonvolatile memory. If the controller has a
CompactFlash card, leave
the card in the controller
until the OK LED turns solid
green.