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IO-PT400 – Unitronics 4 PT100/NI100 inputs module
MPN: IO-PT400
Alt. SKU: IOPT400
Special Price
£226.69
£188.91
Regular Price
£266.70
Why Choose the Unitronics IO-PT400 Temperature Input Expansion Module?
The Unitronics IO-PT400 is a dedicated temperature input expansion module designed for use with compatible Unitronics Vision™ and OPLC PLC controllers. It provides four RTD temperature inputs, enabling accurate monitoring and control of temperature-dependent processes within industrial automation systems.
The module supports widely used RTD sensor types including Pt100, Ni100 and Ni120, allowing integration with many industrial temperature measurement systems. It connects to the PLC through a dedicated I/O expansion adapter, allowing additional temperature inputs to be added without replacing the base controller.
Designed for reliability in control cabinets, the IO-PT400 can be mounted on a standard 35 mm DIN rail or screw-mounted onto a panel. It provides stable temperature data acquisition that can be used for process monitoring, alarm handling and closed-loop control within PLC programs.
Key Features
- 4 RTD temperature inputs for industrial process monitoring.
- Supports Pt100, Ni100 and Ni120 RTD sensors.
- Designed for Unitronics Vision and OPLC PLC systems.
- 12-bit analogue resolution for accurate measurement.
- LED indicator for module operating status.
- Expandable architecture for scalable PLC I/O systems.
- DIN-rail or panel mounting for industrial control cabinets.
Technical Specifications
- Manufacturer: Unitronics
- Model: IO-PT400
- Type: Temperature input expansion module
- Number of inputs: 4 RTD inputs
- Supported sensors: Pt100, Ni100, Ni120
- Analogue resolution: 12-bit
- Input wiring: 2-wire, 3-wire or 4-wire RTD connections
- Power consumption: approx. 0.09 W
- Power supply: supplied via PLC expansion adapter (5 VDC)
- Status indication: RUN LED
- Mounting: 35 mm DIN rail or screw mount
- Dimensions: approx. 80 × 93 × 60 mm
- Operating temperature: 0 °C to 50 °C
- Protection rating: IP20
Industrial Temperature Monitoring
Temperature sensing is critical for many automation processes including manufacturing, HVAC, environmental control and equipment protection. The IO-PT400 module enables PLC systems to collect temperature data directly from RTD sensors and use this information for process control, alarms and monitoring.
By expanding the PLC with dedicated temperature inputs, engineers can implement accurate process control and improve system reliability in applications where thermal management is essential.
Typical Applications
- Industrial process temperature monitoring.
- HVAC and environmental control systems.
- Machine thermal protection systems.
- Food, chemical and pharmaceutical processing.
- Automation systems requiring RTD temperature sensing.
Frequently Asked Questions
What is the Unitronics IO-PT400 used for?
The IO-PT400 is an expansion module that adds four RTD temperature inputs to compatible Unitronics PLC controllers.
Which sensors are supported by the IO-PT400?
The module supports Pt100, Ni100 and Ni120 RTD temperature sensors.
How many temperature inputs are available?
The IO-PT400 provides four analogue RTD inputs for temperature measurement.
How is the IO-PT400 installed?
The module mounts on a DIN rail or panel and connects to the PLC via a Unitronics expansion adapter.
Trusted by Automation Engineers
Unitronics temperature input modules provide reliable RTD measurement capability, allowing engineers to integrate precise temperature monitoring directly into PLC automation systems.
| Packed Quantity | 1 |
|---|---|
| Manufacturer | Unitronics |
| Manufacturer Part Number | IO-PT400 |
| Alternative Product SKU | IOPT400 |
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