Rockwell Automation 1772-LV Mini-PLC - 2/15 Programmable Controller (Series B) Programming and Operations - Manual (Page 22)

Mini-PLC-2/15 System:
An Overview
Chapter 3
3Ć3
RUN
Indicator: Green
State: On indicates that the output devices respond to your program when the
processor is in run or run program modes.
Off indicates that the processor is in the program or test modes, either wit the
keyswitch or using the remote mode select function.
Response: On- The processor will begin operations.
Off - When the processor is in the test mode, the program is executed while the
outputs are disabled. When the processor is in the program mode and all outputs
are off, then the program will not execute.
BATTERY LOW
Indicator: Red
State: On and Off blinking indicates a low battery.
Response: The battery low bit, 02700, will cycle on and off when a battery low
voltage condition is detected (the processor can be in any mode). The battery
will continue to provide memory backup for about one week after the indicator
begins to flash.
DC ON
Indicator: Red
State: On indicates that 5.1V DC is present and within the required tolerances.
Response: On - The processor will begin operations. Off - The processor will
not begin operations.
Mode Select Switch
This is keylock switch located on the front of the processor module. This
switch has four positions to indicate the processor’s mode of operation:
PROG
Function: You can enter or edit program instructions.
Response: All output are disabled. Program instructions are not executed.