Rockwell Automation AutoMax Enhanced Ladder Language Reference Manual - Manual (Page 291)

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A.6.4 About Initializing Timer and Counter Variables
You can define the initialization mode for timer and counter preset variables. Choose
between a User Specified Value or Retained Value. The Retained Value is the default
initialization mode. You cannot define an initialization method for the Elapsed timer
element or the Current counter element. These elements are usually reset to 0 at the
start of program scan, unless the timer or counter data structure is defined as global
and nonĆvolatile. If you reference a timer or counter element in a program whose data
structure is not used in a timer or counter instruction within the same program, the
variable uses the No Initialization method. You cannot change it to User Specified Value
or Retained Value. However, if you later add that timer or counter data structure on a
newly added timer or counter instruction, the initialization type of the timer or counter
elements becomes Retained Value. You can then choose either a Retained Value or
User Specified Value initialization. The value contained in the Initial Value field is the
timer's or counter's preset value.
A.6.5 About Initializing Arrays
You can define an initial value for individual elements of an array. The list of available
elements and their current values appears in the Array Index list box.