Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
IO-AI8 – Unitronics 8 Analog Input module
Unitronics IO-AI8 analogue input expansion module featuring 8 analogue inputs with 14-bit conversion for industrial automation and process monitoring applications.
£187.43
Why Choose the Unitronics IO-AI8 Analog Input Expansion Module?
The Unitronics IO-AI8 is a high-performance analogue input expansion module designed to extend the monitoring capabilities of compatible Unitronics OPLC and Vision controllers. Featuring 8 analogue inputs, the module enables accurate acquisition of voltage and current signals from industrial sensors, transmitters and process instrumentation.
Designed for industrial automation applications, the IO-AI8 supports multiple analogue signal ranges including 0-10V, 0-20mA and 4-20mA. This flexibility allows engineers to integrate a wide range of field devices into PLC systems whilst maintaining reliable and accurate process monitoring.
The module connects to compatible Unitronics controllers via an expansion adapter and can be mounted directly onto a DIN rail or panel. Its compact design, configurable inputs and industrial-grade construction make it ideal for process control, building automation, utilities and manufacturing environments.
Key Advantages
- Provides 8 analogue input channels for process monitoring.
- Supports 0-10V, 0-20mA and 4-20mA signals.
- 14-bit analogue conversion for accurate measurement.
- Compatible with selected Unitronics Vision and OPLC systems.
- DIN rail or panel mounting flexibility.
- Industrial-grade design for demanding environments.
- Ideal for sensors, transmitters and instrumentation devices.
Key Features
- Unitronics IO-AI8 Expansion Module.
- 8 analogue inputs.
- Input ranges: 0-10V, 0-20mA, 4-20mA.
- 14-bit analogue resolution.
- Configurable voltage or current inputs.
- Communication status LED indicator.
- Input status indicators.
- Expansion adapter connectivity.
- DIN rail or panel mounting.
Accurate Analogue Signal Acquisition
The IO-AI8 enables PLC systems to acquire precise analogue measurements from pressure transmitters, temperature sensors, flow meters, level sensors and other industrial instrumentation. Its 14-bit conversion capability delivers excellent measurement accuracy for demanding automation applications.
Each channel can be configured for voltage or current operation, providing flexibility when integrating mixed sensor types into a single automation platform. This helps reduce system complexity whilst maintaining reliable process visibility.
Typical Applications
- Process automation systems.
- Water and wastewater treatment plants.
- HVAC control systems.
- Energy management systems.
- Industrial machinery monitoring.
- Building automation installations.
- Manufacturing process control.
- Data acquisition systems.
Technical Specifications
Tick the specs you need, then view products that match.
| Signal / Input Range | 0–10 V, 0–20 mA, 4–20 mA | |
|---|---|---|
| Device Type | Analogue I/O Module | |
| Analogue I/O | 8 AI / 0 AO | |
| Signal Type / Function | Analogue | |
| Number of I/O | 8 | |
| Product Series | Unitronics Vision I/O Expansion | |
| IP Rating | IP20 | |
| Product type | Analog Input Expansion Module | |
| Analog inputs | 8 | |
| Input signal ranges | 0-10V, 0-20mA, 4-20mA | |
| Resolution | 14-bit conversion | |
| Power consumption | Approx. 0.2W @ 5VDC | |
| Current consumption | 40mA maximum | |
| Protection rating | IP20 | |
| Mounting type | DIN rail or panel mounting | |
| Dimensions (H × W × D) | Approx. 93 × 80 × 60 mm | |
| Operating temperature | 0°C to +50°C | |
| Certifications | CE, UL, EAC |
Frequently Asked Questions
What is the Unitronics IO-AI8 used for?
The IO-AI8 is an analogue input expansion module that adds eight analogue input channels to compatible Unitronics PLC systems.
What analogue signals can the module accept?
The module supports 0-10V, 0-20mA and 4-20mA analogue input signals.
How many analogue inputs does the IO-AI8 provide?
The module provides 8 analogue input channels for monitoring sensors and instrumentation devices.
What resolution does the module offer?
The IO-AI8 features 14-bit analogue conversion for accurate signal acquisition and process monitoring.
How is the module installed?
The module can be mounted on a DIN rail or directly onto a panel and connects to the PLC via a Unitronics expansion adapter.
Trusted by Automation Engineers Worldwide
Unitronics analogue expansion modules are widely used in industrial automation systems where accurate signal acquisition, reliable operation and seamless PLC integration are critical to process performance.
