Technical FAQs

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Why do I lose my program when I power cycle the Quantum PLC ?

The most common reason for losing your program after a power cycle is not having the battery plugged in.
The Quantum PLC is shipped with its battery unplugged and it's not uncommon to overlook connecting it during start up.
The battery is located behind the LED window in the double wide Quantum and you can access it by sliding the window upward.

 
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