Allen-Bradley controllogix 1756-L55M12 - Maintain a 1756-BATM Battery Module; Check the BAT LED Indicator

Publication 1756-UM001G-EN-P - January 2007
128 Maintain the Battery
Maintain a 1756-BATM
Battery Module
Use the 1756-BATM battery module with any 1756-L55Mx or 1756-L6x,
series A controller. The battery module is highly recommended for the
higher-memory controllers.
When the 1756-BATA battery is about 50% discharged, the controller
provides these warnings:
• Solid red BAT LED
• Minor fault (type 10, code 10).
Check the BAT LED Indicator
To check the BAT LED indicator, perform this procedure.
1. Turn on the chassis power.
Controller Project 1756-BATM Battery Module
1756-L55M12 Permitted
1756-L55M13 Permitted
1756-L55M14 Highly recommended
1756-L55M16 Highly recommended
1756-L55M22 Stored in nonvolatile memory Not required but permitted
Not stored in nonvolatile memory Permitted
1756-L55M23 Stored in nonvolatile memory Not required but permitted
Not stored in nonvolatile memory Permitted
1756-L55M24 Stored in nonvolatile memory Not required but permitted
Not stored in nonvolatile memory Highly recommended
1756-L63 Stored in nonvolatile memory—
requires a 1784-CF64 Industrial
CompactFlash card
Not required but permitted
Not stored in nonvolatile memory Highly recommended
BAT LED