Rockwell Automation 1772-LS_LSP,D17726.8.6 PROG/OPER MANUAL-MINI PLC-2/05 - Manual (Page 254)

Glossary
Appendix B
BĆ18
State
The logic 0 or 1 condition in processor memory or at a circuit input or output.
Station
Any programmable controller, computer, or data terminal connected to, and
communicating by means of, a data highway.
Storage
See Memory.
Storage Bit
A bit in a data table word which can be set or reset, but is not associated with a
physical I/O terminal point.
Subroutine
A program segment in the ladder diagram that performs a specific task and is
available for use.
Subroutine Area (SBR)
A portion of memory where subroutines are stored.
Syntax
Rules governing the structure of a language.
System
A set of one or more programmable controllers, I/O devices and modules,
computers, the associated software, peripherals, terminals, and communication
networks, that together, provide a means of performing information processing
for controlling machines or processes.
Tasks
A set of instructions, data, and control information capable of being executed by
a CPU to accomplish a specific purpose.
Terminal Address
A 5-, 6-, 7-, 8-, or 9-digit number which identifies a single I/O terminal. It is
also related directly to a specific image table bit address.
Trailing Edge One-Shot
A programming technique that sets a bit for scan when its input condition has
made a true-to-false transition. The true-to-false transition represents the
trailing edge of the input pulse.
True
As related to processor instructions, an enabled logic state.
Underflow Bit
A bit that is set to indicate the result of an operation which is less than the
minimum value that can be contained in a register.