Why Choose the Unitronics IO-DI8-TO8 Digital I/O Expansion Module?
The Unitronics IO-DI8-TO8 is a compact and high-performance digital I/O expansion module designed to extend the capabilities of compatible Unitronics Vision and OPLC control systems. Combining 8 digital inputs and 8 transistor outputs within a single module, it provides a fast and efficient solution for industrial automation, machine control and OEM equipment applications.
Designed for 24V DC control systems, the IO-DI8-TO8 supports both PNP (source) and NPN (sink) digital input configurations. The module features 8 PNP transistor outputs for high-speed switching applications, making it particularly suitable for controlling solenoids, indicators, relays and other electronic devices requiring rapid response times.
With integrated 5kHz high-speed counter functionality, short-circuit protected outputs and DIN rail mounting capability, the IO-DI8-TO8 delivers dependable performance for industrial control systems where speed, reliability and flexible expansion are essential.
Key Advantages
- Combines 8 digital inputs and 8 transistor outputs in one compact module.
- Designed for 24V DC industrial control systems.
- Supports both PNP and NPN input wiring.
- Includes 5kHz high-speed counter and frequency measurement functionality.
- Fast transistor outputs provide rapid switching performance.
- Short-circuit protection on all outputs.
- Compact DIN rail-mounted design reduces panel space requirements.
Key Features
- Unitronics IO-DI8-TO8 digital I/O expansion module.
- 8 digital inputs.
- 8 PNP transistor outputs.
- 24V DC nominal operation.
- PNP (source) or NPN (sink) input compatibility.
- Input 7 supports 5kHz high-speed counting.
- 16-bit counter resolution.
- Integrated short-circuit protection.
- LED status indicators for inputs and outputs.
- DIN rail or panel mounting options.
Fast Digital Control for Industrial Automation
The Unitronics IO-DI8-TO8 enables automation engineers to expand PLC functionality with both additional inputs and high-speed transistor outputs. Unlike relay-based modules, transistor outputs provide rapid switching performance, making the module ideal for applications requiring fast response times and frequent switching cycles.
Its integrated high-speed counter and frequency measurement capability supports encoder monitoring, pulse counting and speed measurement applications, while short-circuit protected transistor outputs help improve overall system reliability.
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.
