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EX90-DI8-RO8 – Unitronics 8 in / 8 out digital module
Unitronics EX90-DI8-RO8 I/O expansion module featuring 8 digital inputs and 8 relay outputs for industrial automation and control systems.
£151.73
Why Choose the Unitronics EX90-DI8-RO8 I/O Expansion Module?
The Unitronics EX90-DI8-RO8 is a robust I/O expansion module designed to extend the functionality of compatible Unitronics OPLC controllers. Featuring 8 digital inputs and 8 relay outputs, this module provides a reliable and cost-effective solution for expanding industrial automation systems without increasing controller complexity.
Designed for use with Unitronics Vision and M90 series control systems, the EX90-DI8-RO8 enables engineers and machine builders to add additional field devices, sensors and control outputs quickly and efficiently. Its integrated communication interface simplifies installation while maintaining dependable performance in demanding industrial environments.
With source-type digital inputs, relay outputs rated for industrial loads and DIN rail mounting, the EX90-DI8-RO8 is ideal for machine control, material handling, manufacturing systems and OEM automation applications requiring additional digital I/O capacity.
Key Advantages
- Provides 8 digital inputs and 8 relay outputs in a single module.
- Compatible with selected Unitronics OPLC controllers.
- Relay outputs suitable for switching industrial loads.
- Compact DIN rail-mounted design.
- Integrated communication interface for simple installation.
- Supports high-speed counting and frequency measurement functions.
- Reliable operation in industrial environments.
Key Features
- Unitronics EX90-DI8-RO8 Expansion Module.
- 8 digital inputs (PNP/source type).
- 8 relay outputs.
- 24 V DC operation.
- RJ45 communication interface.
- High-speed counter capability on Input 7.
- LED status indicators for communication and I/O status.
- DIN rail mounting.
- Supplied with communication cable.
Expand Digital Control Capabilities with Ease
The EX90-DI8-RO8 enables automation engineers to increase system input and output capacity without replacing the primary controller. By providing additional digital inputs and relay outputs, the module allows greater flexibility when integrating sensors, switches, alarms, valves and control devices into industrial automation systems.
The module includes a high-speed counter and frequency measurement capability via Input 7, making it suitable for applications requiring pulse counting, speed monitoring and encoder-based feedback.
Typical Applications
- Industrial machine automation.
- Packaging and processing equipment.
- Material handling systems.
- Manufacturing production lines.
- Building management systems.
- OEM machinery.
- Water and wastewater control.
- General industrial control panels.
Technical Specifications
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| Signal / Input Range | 24 V DC | |
|---|---|---|
| Device Type | Digital I/O Module | |
| Coil / Supply Voltage | 20.4–28.8 V DC | |
| Digital Inputs | 8 | |
| Digital Outputs | 8 | |
| Output Type | Relay | |
| Signal Type / Function | Digital | |
| IP Rating | IP20 | |
| Product type | Digital I/O Expansion Module | |
| Series | EX90 Expansion Modules | |
| Digital inputs | 8 PNP (source) | |
| Digital outputs | 8 Relay Outputs | |
| Input voltage | 24 V DC | |
| Supply voltage range | 20.4 to 28.8 V DC | |
| Maximum current consumption | 150 mA @ 24 V DC | |
| Typical power consumption | 2.5 W | |
| Mounting type | 35 mm DIN Rail | |
| Protection rating | IP20 | |
| Operating temperature | 0°C to +50°C | |
| Storage temperature | -20°C to +60°C | |
| Dimensions (W × H × D) | 110 × 122 × 55 mm | |
| Weight | Approx. 212 g |
Frequently Asked Questions
What is the Unitronics EX90-DI8-RO8 used for?
The EX90-DI8-RO8 is used to expand the digital input and output capacity of compatible Unitronics PLC systems by adding 8 digital inputs and 8 relay outputs.
How many inputs and outputs does the module provide?
The module provides 8 digital inputs and 8 relay outputs.
What type of digital inputs are included?
The EX90-DI8-RO8 features PNP (source) digital inputs designed for use with 24 V DC industrial control circuits.
Does the module support high-speed counting?
Yes. Input 7 can operate as a high-speed counter or frequency measurement input, depending on application requirements.
How is the EX90-DI8-RO8 mounted?
The module is designed for installation on a standard 35 mm DIN rail inside industrial control cabinets.
Trusted by Automation Engineers Worldwide
Unitronics I/O expansion modules are widely used in industrial automation systems where reliable expansion, flexible control and dependable machine operation are essential for long-term performance.
