Rockwell Automation AutoMax Enhanced Ladder Language Reference Manual - Manual (Page 287)

AĆ15
A.5 Constants
Use constants to specify:
D unchanging values within ladder instruction input parameters
D an element of an array (array[2])
D a bit within an integer or double integer variable (pump.15)
D a bit within an element of an integer or double integer array (array[2].31)
You can include the plus (+) and minus (ć) signs for constants entered in the ladder
instruction parameters.
I
MPORTANT
To enter a hexadecimal value that begins with a letter as a ladder instruction input
parameter, you must enter the value using a leading 0; end the value with an  h or H."
For example, enter 0A5A5H not A5A5H.
A.6 About Initializing Variables
You can choose the value that a variable contains when a program is downloaded to
the Processor or while the program is running. This is useful for loading a preĆdefined
value into a variable for calculations, modifying parameters, or changing a timer's or
counter's preset value. You can change the value of a variable and/or its initial value by:
D setting or forcing the variable
D changing a preset value for a timer or counter via inline editing
D changing the initial value via the Variable Properties dialog box