Omron CX-SUPERVISOR - SCRIPT REFERENCE REV2.0 Reference Manual page 43

CHAPTER 4 – CX-Supervisor Script Language
Note: Changing an alias definition after it has been used in an expression or script will not
automatically change the result in the script. The appropriate script or expression
where that alias is used must be accessed and recompiled by pressing the OK button in
order to apply the changes.
Page 30
OMRON
Revision 2.0