Publication 1763-UM001E-EN-P - June 2015
Installing Your Controller 31
Using the Battery
The MicroLogix 1100 controller is equipped with a replaceable battery. The
Battery Low indicator on the LCD display of the controller shows the status of
the replaceable battery. When the battery is low, the indicator is set (displayed
as a solid rectangle). This means that either the battery wire connector is
disconnected, or the battery may fail within 2 weeks if it is connected. When
the battery level is acceptable, the indicator is clear (displayed as an empty
rectangle).
The MicroLogix 1100 controller ships with the battery wire
connector connected.
Ensure that the battery wire connector is inserted into the
connector port if your application needs battery power. For
example, when using a real-time clock (RTC), or to store
the program in the controller's memory for an extended
period of time while the power is removed.
See Lithium Battery (1763-BA) in the appendix B, for more
information on installation, handling, usage, storage, and
disposal of the battery.
SeeRTC Battery Operation on page 140, for more
information on the use of the battery in relation with RTC.
When the controller’s Battery Low indicator is set
(displayed as a solid rectangle) with the battery wire
connector connected, we recommend strongly to install a
new battery immediately.
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