Which term describes the memorized OFF state that maintains an OFF condition until a subsequent action?

• A. Memorized ON
• B. Set & Hold
• C. Reset Coil
• D. Memorized OFF

Answer: (D)

Memorized OFF describes a memory function in control logic that preserves an OFF condition once the output has been driven to OFF, and it will stay OFF until another action explicitly changes it. This means the system keeps the OFF state as a stored condition, guarding against transient input changes that might otherwise turn things ON unexpectedly. It’s the exact way to express that the output is remembering OFF and won’t change back to ON until a deliberate command or event occurs.

Memorized ON would describe preserving an ON state, which isn’t the scenario here. A reset coil is a component used to force a reset, not a description of the stored state itself. Set & Hold describes latching behavior where a set input maintains a state, but it doesn’t specifically denote that the stored state is OFF.