Rockwell Automation AutoMax Enhanced Ladder Language Reference Manual - Manual (Page 298)

BĆ2
Within a BASIC program, you may want to:
D determine if a timer has expired
D change a timer's preset
To change the preset value by using a BASIC statement
D Enter a statement in this format:
NAME!(2)=new_preset_value
where NAME! is the name of the global timer variable whose preset you want to
change
The value of 2 is the location of the element TPreset within a Timer data type.
Example:
TIMER1!(2)=2000
This statement sets the preset value for the variable TIMER1! to 2000.
To determine if a timer has expired by monitoring element Q in a BASIC program
D Use the BASIC function BIT_SET@ to test the value of Q.
Example:
IF BIT_SET@(TIMER1!(3),15) THEN 250
This statement examined bit 15 of element 3 in the global variable TIMER1.