Why Choose the Unitronics IO-DI16 Digital Input Expansion Module?
The Unitronics IO-DI16 is a reliable digital input expansion module designed to extend the input capabilities of compatible Unitronics PLC and OPLC control systems. Featuring 16 digital inputs arranged across two input groups, the module provides a cost-effective solution for machine builders, panel manufacturers and automation engineers requiring additional field input connectivity.
Designed for industrial automation environments, the IO-DI16 supports both PNP (source) and NPN (sink) input configurations, providing installation flexibility across a wide range of control systems. Its compact design allows easy integration into existing control panels while maintaining dependable performance in demanding industrial applications.
With 24V DC digital inputs, DIN rail mounting capability and an integrated high-speed counter input, the IO-DI16 is ideal for monitoring switches, sensors, limit devices and pulse signals within automated machinery and process control systems.
Key Advantages
- Provides 16 additional digital inputs for PLC expansion.
- Supports both PNP and NPN wiring configurations.
- Includes high-speed counter functionality on Input 15.
- Compact DIN rail-mounted design saves panel space.
- Simple integration with compatible Unitronics PLC systems.
- Suitable for machine control, monitoring and automation applications.
- Status LEDs simplify diagnostics and commissioning.
Key Features
- Unitronics IO-DI16 digital input expansion module.
- 16 digital inputs in two groups.
- 24V DC input operation.
- PNP (source) or NPN (sink) input configuration.
- Integrated 5kHz high-speed counter input.
- 16-bit counter resolution.
- Communication and input status LED indicators.
- DIN rail or panel mounting options.
- Compatible with selected Unitronics Vision and OPLC systems.
The Unitronics IO-DI16 enables automation engineers to expand PLC input capacity without replacing existing controllers. By adding sixteen digital inputs, the module provides a simple solution for integrating additional sensors, switches, push buttons, proximity devices and other field equipment into industrial control systems.
Its integrated high-speed counter functionality makes it suitable for pulse counting, frequency measurement and encoder-related applications, while flexible PNP/NPN compatibility simplifies installation across different machine architectures.
Typical Applications
- Industrial machinery control.
- Packaging and assembly equipment.
- Conveyor and material handling systems.
- Production line monitoring.
- OEM automation panels.
- Sensor and switch monitoring.
- Pulse counting and frequency measurement.
