68 Rockwell Automation Publication 1756-RM100F-EN-P - October 2018
Chapter 3 Replacement Considerations with CompactLogix and Compact GuardLogix Systems
SD Card Behavior
The controller has changed some behavior when loading a project from the SD
card into a controller. The changes facilitate an easier commissioning of new,
out-of box controllers. All Logix 5000 controllers ship from the factory with
firmware revision 1.x.
With 5380 controllers, the Load Image setting On Uninitialized Memory is
available. This setting replaces the On Corrupt Memory setting that is available
with 5370 controllers.
The general behavior is the same for both settings. The only difference is the
controller behavior when it is in the out-of-box condition, as described in
Table 1 2
.
You can install an SD card that uses On Uninitialized Memory in an out-of the
box controller, that is, one that uses firmware revision 1.x. In this case, at
power-up the image loads both the controller firmware and controller
application.
When you use an SD card with an image in an out-of-box controller (firmware
revision 1.x), at power-up that controller updates its firmware to the revision
stored on the card. The update occurs regardless of the Load Image setting for
the image on the SD card.
The On Power Up, and On Initialized Memory settings also load the
controller application into an out-of box controller.
This table shows what happens at power-up when you insert an SD card that
contains an image into a CompactLogix 5380 and Compact GuardLogix 5380
controller.
5370 Controllers 5380 Controllers
Table 12 - SD Card Settings and Controller Power-up Behavior
Image Setting Controller is in Out-of-Box Condition
(Firmware Revision 1.x)
Firmware > 1.x and Internal Nonvolatile
Memory is Not Valid
(2)
Firmware > 1.x and Internal Nonvolatile
Memory is Valid
(2)
User Initiated Loads Firmware Only
(1)
Does Nothing Does Nothing
On Power Up Loads both Firmware and Application • Loads Firmware if there is a revision mismatch
• Loads Application
• Loads Firmware if there is a revision mismatch
• Loads Application
On Uninitialized
Memory
Loads both Firmware and Application
(1)
• Loads Firmware if there is a revision mismatch
• Loads Application
Does Nothing
(1) Indicates change in behavior from CompactLogix 5370 L3 and older controllers.
(2) “Valid” includes the No Project condition.
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