Rockwell Automation Publication 1756-RM100F-EN-P - October 2018 67
Replacement Considerations with CompactLogix and Compact GuardLogix Systems Chapter 3
Controller Reset Button
You can reset the controller with the reset button behind the front door on the
controller. You press the button in and hold it during a controller power-up
sequence to reset the controller.
Table 1 1
describes the differences between the reset stages.
Figure 14 - 5380 Controllers - Reset Button
For information on how to use the reset button, see the CompactLogix 5380
and Compact GuardLogix 5380 Controllers User Manual, publication
5069-UM001
.
WARNING: When you press the reset button while power is on, an Electric
Arc can occur. This could cause an explosion in hazardous location
installations. Be sure that power is removed or the area is nonhazardous
before proceeding.
Table 11 - Reset Button Descriptions
Reset
Stage
Definition 5370 Controllers 5380 Controllers
Stage 1 A Stage 1 reset clears the application program and memory, but
retains the IP address and all object attributes designated as
non-volatile.
A Stage 1 reset occurs only if the controller contains a user
application.
Supported Supported
Stage 2 A Stage 2 reset returns the controller to out-of box settings, including
firmware, and clears all network settings.
A Stage 2 reset occurs only if the controller does not contain a user
application, and the current controller firmware is not a 1.x revision.
Not supported Supported
IMPORTANT Remember the following:
• Because port enable/disable status is associated with the application
program, ports become enabled after a Stage 1 reset.
• A reset occurs only when you hold the button while the module powers
up. If you press the reset button during runtime, there is no effect.
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