RSLogix 5000 batteries

JLN · Sep 17, 2008

Can anyone tell me how long the backup batteries should last in a Logix 5000 controller? After powering down the processor for Hurricane evacuation, I get back (6 days)and processors have lost their programs. Thanks

LJBMatt · Sep 17, 2008

Depends on the processor. L6x series should hold for months at a minimum. L55 will eat batteries pretty quickly with a new battery only lasting a couple of weeks with no power. Rockwell's website has a matrix for estimated battery life.

http://www.ab.com/en/epub/catalogs/12762/2181376/2416247/360807/1837516/tab4.html

JLN · Sep 17, 2008

PLC batteries

The batteries we have is 1756-BATA which are the large dual batteries 3.6v, 19AH. This application is offshore Gulf of Mexico, located in an outdoor Stainlees Steel panel which will get pretty hot.

LJBMatt · Sep 17, 2008

From their website it looks like a minimum of 146 days but this depends on your processor model and condition of the batteries. Looks like the BATM with the BATA battery is your best bet. Maybe replace them with fresh batteries next time you have to close up shop.

TConnolly · Sep 17, 2008

We built a welding bot for repairing riser pipes for offshore rigs with an L55. Everytime we shipped it anywhere the operator had to reload the program - the thing ate batteries, always kept it powered up in storage. The BATM helped for local shipping, but when it was bound for South America it was hopeless. Bot V 2.0 used an L61 and no problems at all.

JLN · Sep 17, 2008

We are using the BATM and the battery was replaced within minutes before powering down just to be sure ............

RSLogix 5000 batteries

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