Rockwell Automation GMLC Reference Manual - Manual (Page 894)

Publication GMLC-5.2 - November 1999
How Commander Uses the Motion Controller’s Memory 857
How the Motion Controller Uses Memory
When the setup menus in the motion controller are used to edit the setup
parameters, the question “Load Setups from App Module?” is asked.
Answering “YES” copies the power-up setup parameter values from the
application memory into working memory. While in the setup menu, it is
the working parameter values that change, not the power-up values. At
the conclusion of the setup menus, the question “Save Setups to App
Module?” appears. Answering “YES” copies the working setup parameter
values (presumably now properly set) into application memory for use
whenever the controller powers-up. Because working memory clears
whenever either power to the motion controller ceases or you press the
RESET button, always save the working setups into application memory
after using the setup menus.
A default set of values is contained in the firmware for initializing the
setup parameters to a known state whenever necessary. The iCODE .I
command stores these default setup parameter values in both the
application and working memory. This is why you need to unlock the
memory before using the .I command. See the Initializing Your Motion
Controller chapter for more information on the .I command.
How Commander Uses the Motion Controller’s Memory
Commander also accesses these three memory areas when diagrams,
scripts, etc. are uploaded and downloaded, as shown below.