Rockwell Automation 1756-SPESMNRMXT GuardLogix Controllers User Manual - Manuel (Page 123)

Rockwell Automation Publication 1756-UM020I-EN-P - August 2012 123
Store and Load Projects Using Nonvolatile Memory Chapter 8
Immediately after the controller is no longer powered, the OK status
indicator transitions to solid red and remains that way long enough to save
the program.
Figure 30 - OK Status Indicator.
2. Leave the ESM on the controller until the OK status indicator is off.
3. If necessary, remove the ESM from the controller after the OK status
indicator transitions from solid red to off.
Clear the Program from On-board NVS Memory
If your application allows it, follow these steps to clear the program from the
1756-L7
xS controller’s on-board NVS memory.
1. Remove the ESM from the controller.
2. Remove power from the controller by turning off power to the chassis
while the controller is installed in the chassis, or by removing the controller
from a powered chassis.
3. Reinstall the ESM into the controller.
4. Restore power to the controller.
a. If the controller is already installed in the chassis, turn power to the
chassis back on.
b. If the controller is not installed into the chassis, reinstall the controller
into the chassis and turn chassis power back on.
OK FORCE SD RUN
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