ControlLogix® Controller and Memory Board
27
Publication
1756-IN101J-EN-P - November 2004
Check the OK LED
1.
What color is the OK LED?
2.
Is this a ControlLogix5555 controller?
If:
Then:
Actions:
solid green
The controller is OK and its
firmware has been updated.
No further actions are required.
However, the revision of firmware
must be compatible with your
revision of RSLogix 5000 software.
flashing red
The controller is OK but it requires a
firmware update.
Go to “Determine Which Firmware
Revisions to Use” on page 10.
solid red
The memory board of the controller
may not be compatible with the
revision of firmware.
Go to step 2.
If:
Then:
No
The controller is not operational. Contact your Rockwell
Automation representative or local distributor.
Yes
Go to step 3.
42525
OK LED
Summary of Contents for 1756-ENBT ControlLogix
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Page 39: ...ControlLogix DC 10 31 2V Input Module 19 Publication 1756 IN031D EN P February 2003 Notes ...
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