Omron NB Series Operation Manual page 462

5 Maintenance and Abnormality Handling
Backup of application
When the unit needs to be repaired due to the occurrence of some faults or to be replaced by the
substitute, be sure to make backup of the applications and keep it in a safe location.
Spare part of Unit
It is recommended to prepare the spare part of NB Unit in advance in order to repair the system
when the faults occurred in NB Unit or the screen is not clear due to the backlight life expires.
Replace of battery
The lithium battery is used for the backup of the non-screen data such as calendar data, clock data
etc.
The life of the battery is approximate 5 years at 25 ° (1 year = 365 days × 12 hours /day). If the
C
battery is used at high temperature, its life will be reduced. Please replace the battery after the data
backup according to the operating environment.
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NB-Series Programmable Terminals NB-Designer Operation Manual(V106) 5-3