Rockwell Automation 1775-MX_S4A,D17756.3.1 User Manual PLC-3 BACKUP CONC(OR.DU1 - Manual (Page 6)

Preface
P-2
Information that is especially important to note is identified by three labels:
WARNING
CAUTION
Important
WARNING: tells you of circumstances or practices that can
lead to personal injury as well as damage to equipment.
CAUTION: tells you of circumstances or practices that can
lead to damage of equipment.
Important: provides you with information that is important for the
successful application of the PLC-3 backup system.
Some terms used in this manual may be unfamiliar to you. We list these
terms with a brief definition of each.
Bit terminology - the states of logic bits are defined as follows:
ON = Set = 1 = high state
OFF = Reset = 0 = low state
Channel configuration - using LIST functions or message instructions to
assign specific parameters to the I/O channels on scanner modules.
Communication adapter module - refers to the 1775-KA module used in
PLC-3 and PLC-3/10 processors.
Memory communication module - refers to the 1775-MX module used in
PLC-3 processors.
Processor - refers to a PLC-3 or PLC-3/10 programmable controller
system consisting of a power supply, chassis, modules, cables, and all other
components needed to achieve an operational system.
Programming terminal - refers to an industrial terminal system, e.g.,
Allen-Bradley -T4, -T47, -T50, or -T60 terminals, or an AT-type computer
with 6200 software.
Scanner module - refers to 1775-S4A or -S5 modules used in PLC-3
processors and/or 1775-SR or -SR5 modules used in PLC-3/10 processors.
WARNINGS, CAUTIONS and
Important Information
Terms and Conventions