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.
Summary of Contents for 1756-ENBT ControlLogix
Page 38: ...18 ControlLogix DC 10 31 2V Input Module Publication 1756 IN031D EN P February 2003 Notes ...
Page 39: ...ControlLogix DC 10 31 2V Input Module 19 Publication 1756 IN031D EN P February 2003 Notes ...
Page 63: ...ControlLogix Voltage Current Input Module 23 Publication 1756 IN039D EN P February 2003 Notes ...
Page 151: ...ControlLogix Voltage Current Output Module 19 Publication 1756 5 42 September 1999 ...
