Rockwell Automation 2706-M1 MESSAGEVIEW 421 HARDWARE MANUAL - Manual (Page 113)

7–5 Troubleshooting and Maintenance
Publication 2706–816
The MessageView contains a small lithium battery used by the real
time clock, and to maintain application and Historical Event Stack
memory when the terminal is turned off. The battery has a typical
life expectancy of 5 to 10 years.
The battery is tested every time the terminal is powered up or reset,
as part of the Power On Self Test (POST). It may also be tested
separately using the Front Panel Editor (FPE) Self Tests. See
Page 3–25.
Contact an Allen-Bradley Field Service Center for battery
replacement.
!
ATTENTION: Remove the MessageView terminal
from a hazardous environment before replacing the
battery. Contact Allen-Bradley Field Service Center for
Battery Replacement.
!
ATTENTION: The battery module contains lithium.
Do not attempt to dispose of it in a fire or incinerator, it
may explode. Follow disposal regulations in your area
for lithium battery disposal.
Replacing the Battery
Module