Rockwell Automation 1772-LS_LSP,D17726.8.6 PROG/OPER MANUAL-MINI PLC-2/05 - Manual (Page 246)

Glossary
Appendix B
BĆ10
I/O Terminal
A terminal on the I/O module. One I/O terminal has a corresponding bit
address in the data table.
Isolated I/O Module
A module which has each input or output electrically isolated from every other
input or output on that module.
K
10=lK=1024. used to denote size of memory and can be expressed in bits,
bytes, or words. Example: 2K = 2048.
k
Kilo, A prefix used with units of measurement to designate quantities a 100
times as great.
Keying
keying bands installed on backplane connectors to ensure that only one type of
module can be inserted into a keyed connector.
Ladder Diagram
An industry standard for representing control systems.
Ladder Diagram Programming
A method of writing a user program in a format similar to a relay
ladder diagram.
Language
A set of symbols and rules used for representing a communicating information.
Latching Relay
A relay that maintains a given position by mechanical or electrical means until
released mechanically or electrically.
Leading Edge One-Shot
A programming technique that sets a bit for one scan when its input condition
has made a false-to-true transition. The false-to-true transition represents the
leading edge of the input pulse.
Least Significant Bit (LSB)
The bit that represents the smallest value in a nibble, byte, or word.
Least Significant Digit (LSD)
the bit that represents the smallest value in a byte or word.
LED
Light-Emitting Diode.
LED Display
An illuminated visual readout composed of alphanumeric character segments.