| Terms | Applicable Categories |
|---|---|
| instantaneous contact | Timers |
| instantaneous safety output | Safety Controllers |
| instruction processing time | Programmable Controllers |
| insulation breakdown | General Purpose Relays |
| insulation class | Axial Fans |
| insulation resistance | Push Buttons / Indicator Lamps |
| Basic Switches | |
| Limit Switches | |
| Timers | |
| Temperature Controllers | |
| Power Supplies | |
| General Purpose Relays | |
| Solid-state Relays | |
| integral action | Temperature Controllers |
| integral time | Temperature Controllers |
| interface | Networks |
| interlock device | Safety |
| interlock function | Safety Sensors |
| Internal I/O Area | Programmable Controllers |
| Internal Memory | Programmable Terminals |
| internal stopper | Thumbwheel Switches |
| internally set speed control | Servomotors / Servo Drivers |
| interrupt response time | Programmable Controllers |
| interrupt task | Programmable Controllers |
| intersecting contacts | General Purpose Relays |
| interval operation | Timers |
| intrusion detection | Safety |
| inverse input | Safety Controllers |
| Inverter overload | Inverters |
| IOM Hold Bit | Programmable Controllers |
| IP address | Programmable Controllers |
| isolation | Control |
| isolator | Signal Converters |