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IO-DI16-L – Unitronics 16 digital inputs module (12V)
MPN: IO-DI16-L
Alt. SKU: IODI16L
Special Price
£130.31
£108.59
Regular Price
£153.30
Why Choose the Unitronics IO-DI16-L Digital Input Expansion Module?
The Unitronics IO-DI16-L is a compact digital input expansion module designed for use with Unitronics Vision series PLC controllers. It expands PLC capability by adding additional digital input channels for monitoring switches, sensors and other field devices used in industrial automation systems.
The module provides 16 digital inputs arranged in two groups and supports both PNP (source) and NPN (sink) wiring. Unlike the standard IO-DI16 model, the IO-DI16-L operates with a 12 V DC nominal input voltage, making it suitable for automation systems using lower-voltage digital sensors or control circuits.
Designed for flexible installation, the IO-DI16-L can be mounted directly onto a 35 mm DIN rail or screw-mounted inside a control cabinet. The module connects to Unitronics PLCs through an expansion adapter and includes LED indicators for input status and communication diagnostics.
Key Features
- 16 digital inputs for monitoring industrial sensors and switches.
- 12 V DC nominal input voltage for low-voltage control systems.
- Supports both PNP (source) and NPN (sink) wiring configurations.
- 1 high-speed counter input capable of pulse and frequency measurement.
- LED indicators show real-time input status.
- Compatible with Unitronics Vision PLC expansion systems.
- Compact DIN-rail mountable industrial module.
Technical Specifications
- Manufacturer: Unitronics
- Model: IO-DI16-L
- Product type: Digital input PLC expansion module
- Digital inputs: 16 inputs (in two groups)
- Input configuration: PNP (source) or NPN (sink)
- Nominal input voltage: 12 V DC
- Input voltage range: approx. 10.2–15.6 V DC
- High-speed counter: up to 5 kHz, 16-bit counting
- Response time: approx. 10 ms typical
- Mounting: 35 mm DIN rail or panel mount
- Protection rating: IP20 / NEMA 1
- Operating temperature: 0 °C to 50 °C
- Dimensions: approx. 80 × 93 × 60 mm
- Weight: approx. 141 g
Typical Applications
- Monitoring digital sensors in PLC automation systems.
- Machine control panels using 12 V digital inputs.
- Integration of pushbuttons, limit switches and proximity sensors.
- Manufacturing and packaging equipment.
- Expansion of digital input capacity for Unitronics Vision PLC installations.
Frequently Asked Questions
What is the Unitronics IO-DI16-L used for?
The IO-DI16-L expands a PLC system by adding sixteen digital inputs used to monitor switches, sensors and other discrete field devices.
What is the difference between IO-DI16 and IO-DI16-L?
The IO-DI16-L uses a 12 V DC input voltage, while the IO-DI16 is designed for 24 V DC systems.
How many inputs does the module provide?
The module provides sixteen digital inputs organised into two groups.
Does the module support high-speed counting?
Yes. One input channel can operate as a high-speed counter capable of measuring pulse signals up to approximately 5 kHz.
How is the IO-DI16-L installed?
The module can be mounted on a standard 35 mm DIN rail or screw-mounted directly to a control panel.
Trusted by Automation Engineers
Unitronics digital expansion modules are widely used in industrial automation systems to increase PLC input capacity while maintaining reliable monitoring of field devices and sensors.
| Packed Quantity | 1 |
|---|---|
| Manufacturer | Unitronics |
| Manufacturer Part Number | IO-DI16-L |
| Alternative Product SKU | IODI16L |
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