Rockwell Automation AutoMax Enhanced Ladder Editor - Manual (Page 89)

GĆ1
Appendix G
Glossary
Accept: To approve the edit made to an online program. Rungs
that have been added, deleted, or modified must be
accepted and verified before they can be downloaded to
a Processor.
BitĆindexed variable: A variable referencing a bit within an integer
or double integer variable. For example, pump.15
references bit 15 within the integer variable "pump."
Commit: To allow the Editor to verify and download changes made
to an online program. You must accept online changes
before you can commit them. You can commit online
changes immediately after you accept them or while the
program is in Test Mode.
Data Structure: Data structures contain a collection of Boolean and
double integer data and are used for the timer and
counter data types.
ElementĆindexed variable: A variable referencing an element within
an array variable. For example, panel[11] references an
element 11 within the array variable "panel." An element
can be a Boolean, integer, or double integer.
Global Variables: Global variables can be referenced by ladder,
Control Block, or BASIC programs in a rack. Global
variables can refer to memory locations, physical I/O
locations, or network locations. Global memory variables
can be of any data type supported by the Editor. If you
type in the first letter of a variable using upper case, the
default scope will be global. The names of global
variables appear in upper case.
Local Variables: Local variables are those that can only be used in
the program in which they are defined. No other
programs can reference them. If you type in the first letter
of a variable name using lower case, the default scope
will be local. The names of local variables appear in lower
case.
Match: As applied to the Resolve Variable Descriptions
command, a global variable in a ladder program that
uses the same name as one in Variable Configurator.
For example, the Editor would determine that a global
variable called PUMP_STATUS used in a ladder program
is a match to a global variable called PUMP_STATUS
present in the Variable Configurator.
The data type of a variable is not a factor when
determining whether the global variables match.