| Terms | Applicable Categories |
|---|---|
| a constant read-in system | Counters |
| absolute | Rotary Encoders |
| absolute command | Servomotors / Servo Drivers |
| absolute maximum value | Push Buttons / Indicator Lamps |
| absolute-value alarm | Temperature Controllers |
| AC relay | General Purpose Relays |
| acceleration time | Inverters |
| acceleration/deceleration time | Inverters |
| access right | Programmable Controllers |
| accuracy | Digital Panel Indicators |
| accuracy of operating time | Timers |
| activation | General Purpose Relays |
| active power | Control |
| adjuster setting | Photoelectric Sensors |
| adjustment level | Temperature Controllers |
| advanced function setting level | Temperature Controllers |
| Air Cleaning Systems | Air Cleaning / Static Electricity Components |
| Alarm History | Programmable Terminals |
| alarm hysteresis | Temperature Controllers |
| alarm latch | Temperature Controllers |
| alarm operation | Temperature Controllers |
| alarm with standby sequence | Temperature Controllers |
| Alarm/Event Display | Programmable Terminals |
| alarm/event function | Programmable Terminals |
| alarm/event settings | Programmable Terminals |
| Alarm/Event Summary & History | Programmable Terminals |
| alarm/event summary and history functional object | Programmable Terminals |
| allowable load resistance | Control |
| allowable switching time for mode selector input | Safety Controllers |
| alternate | Push Buttons / Indicator Lamps |
| alternate action | Push Buttons / Indicator Lamps |
| alternative operation | Level Switches |
| ambient illuminance | Photoelectric Sensors |
| ambient operating humidity | Power Supplies |
| ambient operating temperature | Power Supplies |
| ambient operating temperature and humidity | Solid-state Relays |
| Amplifier Unit connector | Photoelectric Sensors |
| analog data allocation | Networks |
| analog frequency | Inverters |
| analog input | Temperature Controllers |
| analog line | Networks |
| Analog Meter | Programmable Terminals |
| analog reference | Inverters |
| analog signal | Temperature Controllers |
| annunciator | Digital Panel Indicators |
| Temperature Controllers | |
| anode arc | General Purpose Relays |
| apparent power | Control |
| applicable load inertia | Servomotors / Servo Drivers |
| application condition | Basic Switches |