Rockwell Automation 1772-LS_LSP,D17726.8.6 PROG/OPER MANUAL-MINI PLC-2/05 - Manual (Page 249)

Glossary
Appendix B
BĆ13
Module
An interchangeable, plug-in item containing electronic components.
Module Addressing
A method of identifying the I/O modules installed in a chassis.
Module Group
Adjacent I/o modules which relate 16-I/O terminals to a single 16-bit image
table word.
Module Slot
A location for installing an I/O module.
Monitor
1) A CRT display. 2) To observe an operation.
Monitoring Controller
Used in an application where the process is continually checked to alert the
operator of possible application malfunctions.
Most Significant Bit (MSB)
The bit representing the greatest value of a nibble, byte, or word.
Most Significant Digit (MSD)
The digit representing the greatest value of a byte or word.
Motor Controller
A device or group of devices that serve to govern, in a predetermined manner,
the electrical power delivered to a motor.
Motor Starter
See Motor Controller.
MSB
See Most Significant Bit.
MSD
See Most Significant Digit.
Multiple-Rung Display
A feature that allows a number of rungs of program logic to be displayed
simultaneously on the industrial terminal.
Noise
Unwanted disturbances imposed upon a signal that tend to obscure its
data content.
Noise Immunity
The ability to function in the presence of noise.