What is Firmware?

Definition

Permanent software embedded in the memory of a drive, PLC, or controller that controls its core operating functions. Firmware updates can fix bugs, add features, and improve performance; corrupted firmware is a common repair scenario.

Related Terms

Flash Memory

A non-volatile storage technology that retains data without power and can be ele...

CPU Module

The central processing unit of a PLC system that executes the control program, m...

Non-Volatile Memory

Memory that retains stored data even when power is removed, including flash, EEP...

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