Rockwell Automation 9323-PA1E QUICK START GUIDE APS 6.0 - Manual (Page 77)

Preface
APS Quick Start for New Users
G–4
restore: To download (transfer) a program from a personal computer to a SLC.
run mode: When the processor file in the SLC is being executed, inputs are read,
the program is scanned, and outputs are energized and de-energized.
rung: Ladder logic is comprised of a set of rungs. A rung contains input and
output instructions. During Run mode, the inputs on a rung are evaluated to be true
or false. If a path of true logic exists, the outputs are made true. If all paths are
false, the outputs are made false.
save: To upload (transfer) a program stored in memory from a SLC to a personal
computer; OR to save a program to a computer hard disk.
SLC (Small Logic Controller): A controller that comes in 1 of 2 styles: fixed or
modular.
slot: The area in a chassis that a module plugs into.
software: Executable programming package used to develop SLC ladder diagrams.
status: The condition of a circuit or system, represented as logic 0 (OFF) or 1
(ON).
terminal: A point on an I/O module that external I/O devices, such as a pushbutton
or pilot light, are wired to.
true: The status of an instruction that provides a continuous logical path on a ladder
rung.
write: To copy data to a storage device. For example, the processor WRITEs the
information from the output data file to the output modules.
eXamine If Closed (XIC): An input instruction that is logically true when the
status of the bit located at its address is a 1; false when it’s a 0.
eXamine If Open (XIO): An input instruction that is logically true when the status
of the bit located at its address is a 0; false when it’s a 1.