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IO-D16A3-TO16 – Unitronics XL-EXP,16I,3AI,16TO
Unitronics IO-D16A3-TO16 XL I/O expansion module featuring 16 digital inputs, 3 analogue inputs and 16 transistor outputs with high-speed counter and output functionality for industrial automation applications.
£215.70
Why Choose the Unitronics IO-D16A3-TO16 XL I/O Expansion Module?
The Unitronics IO-D16A3-TO16 is a powerful and flexible XL I/O expansion module designed to extend the functionality of compatible Unitronics PLC and OPLC systems. Combining 16 digital inputs, 3 analogue inputs and 16 transistor outputs within a single compact module, it provides an efficient solution for industrial automation, machine control and OEM equipment applications.
As part of the Unitronics XL I/O range, the IO-D16A3-TO16 features detachable I/O connectors, simplified wiring and seamless integration with local or remote I/O adapter modules. Its combination of digital, analogue and high-speed functionality helps reduce panel space requirements while delivering dependable performance in demanding industrial environments.
With integrated high-speed counter (HSC) and high-speed output (HSO) capabilities, the module is ideal for applications involving encoders, pulse measurement, positioning systems and process control. The transistor outputs provide fast switching performance for automation systems requiring rapid response times.
Key Advantages
- Combines 16 digital inputs, 3 analogue inputs and 16 transistor outputs in one module.
- Includes 1 high-speed counter (HSC) and 1 high-speed output (HSO).
- Fast transistor outputs ideal for automation and motion-related applications.
- Compatible with Unitronics local and remote I/O architectures.
- Detachable terminal connectors simplify installation and maintenance.
- Compact DIN rail-mounted design reduces control panel space requirements.
- Suitable for industrial machinery, OEM systems and process automation.
Key Features
- Unitronics IO-D16A3-TO16 XL expansion module.
- 16 digital inputs.
- 3 analogue current inputs.
- 16 transistor outputs.
- 1 high-speed counter input.
- 1 high-speed output.
- PNP or NPN configurable input wiring.
- LED status indicators for diagnostics and communication monitoring.
- DIN rail mounting with detachable wiring terminals.
High-Speed Control and Flexible I/O Expansion
The IO-D16A3-TO16 is designed for applications requiring both fast digital control and analogue process monitoring. Its combination of transistor outputs and high-speed functionality makes it particularly suitable for systems involving positioning, counting, frequency measurement and rapid switching operations.
The module allows automation engineers to expand PLC capabilities without adding multiple separate modules. By integrating digital inputs, analogue process monitoring and transistor outputs into a single device, it simplifies panel design while improving overall system flexibility.
Typical Applications
- Industrial machinery control.
- Packaging and assembly equipment.
- Material handling systems.
- Conveyor and positioning systems.
- OEM automation panels.
- Process monitoring and control.
- Manufacturing and production equipment.
Technical Specifications
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| Number of I/O | 3 | |
|---|---|---|
| Product Series | Unitronics Vision I/O Expansion | |
| Device Type | Analogue I/O Module | |
| Coil / Supply Voltage | 20.4–28.8 V DC | |
| Digital Inputs | 16 | |
| Digital Outputs | 16 | |
| Analogue I/O | 3 AI / 0 AO | |
| Signal Type / Function | Analogue, Digital | |
| Voltage | 24 V | |
| IP Rating | IP20 | |
| Series | XL I/O Expansion Modules | |
| Product type | Digital and analogue I/O expansion module | |
| Digital inputs | 16 | |
| High-speed counter | 1 HSC | |
| Analogue inputs | 3 | |
| Analogue input type | 0-20mA / 4-20mA | |
| Analogue resolution | 10-bit | |
| Transistor outputs | 16 | |
| High-speed output | 1 HSO | |
| Nominal supply voltage | 24V DC | |
| Operating voltage range | 20.4-28.8V DC | |
| Maximum HSC frequency | 30kHz | |
| Protection rating | IP20 / NEMA 1 | |
| Mounting type | 35mm DIN rail | |
| Dimensions (W × H × D) | 80 × 135 × 60 mm | |
| Weight | Approximately 327 g |
Frequently Asked Questions
What is the Unitronics IO-D16A3-TO16 used for?
The module expands compatible Unitronics PLC systems with 16 digital inputs, 3 analogue inputs and 16 transistor outputs.
Does the module support high-speed applications?
Yes, the IO-D16A3-TO16 includes a high-speed counter input and a high-speed transistor output for applications involving pulse measurement and fast control.
What analogue signals can be connected?
The analogue inputs support industry-standard current signals including 0-20mA and 4-20mA.
What type of outputs are provided?
The module includes 16 transistor outputs for fast switching and control of industrial devices.
How is the module installed?
The IO-D16A3-TO16 is designed for installation on a standard 35mm DIN rail inside industrial control panels.
Trusted by Automation Professionals Worldwide
Unitronics XL I/O expansion modules are widely used in industrial automation systems where reliable control, high-speed signal processing and scalable PLC expansion are essential for machine performance and operational efficiency.
