| Terms | Applicable Categories |
|---|---|
| offset | Temperature Controllers |
| ON/OFF Button | Programmable Terminals |
| ON/OFF operation | Temperature Controllers |
| ON/OFF ratio | Counters |
| ON-delay operation | Timers |
| one heater burnout detection | Power Controllers |
| one-turn adjuster | Photoelectric Sensors |
| online editing | Programmable Controllers |
| open collector | Temperature Controllers |
| Inverters | |
| open-collector output | Rotary Encoders |
| opening force | General Purpose Relays |
| opening speed | General Purpose Relays |
| operand | Programmable Controllers |
| operating bounce time | General Purpose Relays |
| operating capacity | Limit Switches |
| Operating Force | Safety Limit Switches |
| operating position repeat accuracy | Limit Switches |
| operating resistance | Limit Switches |
| Level Switches | |
| operating sensitivity | Limit Switches |
| operating speed | Safety Limit Switches |
| operating time | Timers |
| operating voltage | Solid-state Relays |
| Level Switches | |
| operation command | Inverters |
| Operation Log | Programmable Terminals |
| operation mode | Counters |
| Programmable Controllers | |
| operation part | Limit Switches |
| operation time monitor | Networks |
| optical data link | Networks |
| optical fiber sensor | Photoelectric Sensors |
| optical output | Networks |
| optical power | Networks |
| optically synchronized | Photoelectric Sensors |
| Optional Card | Inverters |
| origin | Inverters |
| origin retrun | Inverters |
| output circuit | Rotary Encoders |
| output current | Inverters |
| output current capacity | Limit Switches |
| output duty ratio | Rotary Encoders |
| output frequency | Inverters |
| output hold time | Power Supplies |
| output impedance | Control |
| output phase | Rotary Encoders |
| output phase-loss detection | Inverters |
| output resistance | Counters |
| output response time | Rotary Encoders |