Rockwell Automation 1772-L8_LW_LWP_LX_LXP,D17726.5.8 User Manual - Manual (Page 30)

Hardware Features
Chapter 3
3-4
Figure 3.1
Without a Power Supply
10294-I
PROC
F
A
U
L
T R
U
N
BATT
INTFC
BATTERY
INSTALLED
MINI-PLC-2/17
RUN
R/P
MEM
STORE
PROC indicator lights green for normal operation
and red for a processor fault. Off indicates that
you are in Program Mode or a possible runĆtime
error. You reset this LED by cycling power.
BATT (Red) lights when battery should be replaced.
Key Switch selects one of four positions:
PROG: Program
R/P: Run/Program
RUN: Run
MEM STORE: Transfer program to MEM STORE backup EEPROM
Battery backup helps protect stored memory.
Interface Port allows you to connect information sources such as
a 1770ĆT3 terminal, handĆheld terminal. Data Highway  or
Report Generation module.