Why Choose the Unitronics IO-DI8-TO8-L Digital I/O Expansion Module?
The Unitronics IO-DI8-TO8-L is a compact and high-performance digital I/O expansion module designed to increase the functionality of compatible Unitronics Vision and OPLC control systems. Combining 8 digital inputs and 8 transistor outputs within a single module, it provides a reliable and space-saving solution for industrial automation, OEM machinery and machine control applications.
Designed specifically for 12V DC control systems, the IO-DI8-TO8-L supports both PNP (source) and NPN (sink) digital input configurations. Its 8 PNP transistor outputs deliver fast switching performance, making the module ideal for controlling indicators, solenoids, relays and other electronic devices requiring rapid and reliable operation.
With integrated 5kHz high-speed counter functionality, short-circuit protected outputs and flexible DIN rail mounting, the IO-DI8-TO8-L offers dependable performance in demanding industrial environments where speed, accuracy and scalability are essential.
Key Advantages
- Combines 8 digital inputs and 8 transistor outputs in one compact module.
- Designed specifically for 12V DC automation systems.
- Supports both PNP and NPN sensor wiring.
- Integrated 5kHz high-speed counter and frequency measurement.
- Fast transistor outputs provide rapid switching performance.
- Built-in short-circuit protection improves system reliability.
- Compact DIN rail-mounted design saves valuable control panel space.
Key Features
- Unitronics IO-DI8-TO8-L digital I/O expansion module.
- 8 digital inputs.
- 8 PNP transistor outputs.
- 12V DC nominal operation.
- PNP (source) or NPN (sink) input compatibility.
- Input 7 supports 5kHz high-speed counting.
- 16-bit counter resolution.
- Integrated output short-circuit protection.
- LED status indicators for inputs, outputs and fault conditions.
- DIN rail or panel mounting options.
Fast Digital Control for Industrial Automation
The Unitronics IO-DI8-TO8-L enables automation engineers to expand PLC functionality with both additional digital inputs and high-speed transistor outputs. Unlike relay-based modules, transistor outputs provide rapid switching performance, making the module suitable for applications requiring frequent operation and precise control.
Its integrated high-speed counter functionality supports pulse counting, encoder monitoring and frequency measurement tasks, while short-circuit protected outputs help maximise system uptime and operational reliability. The module is particularly suited to 12V DC control architectures commonly found in specialised machinery and OEM equipment.
Typical Applications
- Industrial machinery automation.
- Packaging and assembly equipment.
- Conveyor control systems.
- Pulse counting and encoder monitoring.
- Positioning and motion control systems.
- OEM machinery and control panels.
- Manufacturing and production equipment.
- Process automation systems.
