TechTalk – Rockwell ControlLogix : Effects Of Power Cycle Without PLC Battery

Have ever wondered what would happen if you were to power cycle without the PLC battery on Allen=Bradley ControlLogix? Will the PLC still retain the program and the setpoints in the memory?

This question becomes increasing more critical when your battery has fails (battery voltage drops below lower threshold) due to some unknown reason, and you have a power blackout in your facility where the PLC is installed.

This 4.5 minutes YouTube vilog will answer all your question… Spoiler Alert…. You will lose everything in the PLC…