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.
751-9401 Wago Compact 100 PLC with 2 Analogue/8 Digital Inputs 2 Analogue/4 Digital Outputs
WAGO 751-9401 Compact Controller 100 with 8 digital inputs, 4 digital outputs, 2 analogue inputs, 2 analogue outputs, CANopen, Ethernet, RS-485 communications and Linux-based control functionality.
£461.61
Why Choose the WAGO 751-9401 Compact Controller 100?
The WAGO 751-9401 Compact Controller 100 is a powerful industrial PLC that combines integrated I/O, advanced networking and open automation capabilities within a compact DIN rail-mounted platform. Designed for machine control, building automation, utility applications and Industrial Internet of Things (IIoT) projects, it delivers PLC functionality alongside modern IT and cloud connectivity. The controller features a real-time Linux operating system, dual-core ARM processor and support for CODESYS V3.5 programming.
With 8 digital inputs, 4 digital outputs, 2 analogue inputs, 2 analogue outputs and 2 temperature measurement inputs, the 751-9401 provides versatile onboard I/O without requiring additional expansion modules. Integrated Ethernet, CAN/CANopen and RS-485 communications allow seamless integration into industrial control networks and modern IIoT architectures.
Supporting protocols including Modbus TCP, EtherCAT Master, EtherNet/IP, MQTT and OPC UA, the controller bridges operational technology and information technology, making it suitable for both traditional automation and cloud-connected applications.
Key Advantages
- Compact PLC with integrated digital, analogue and temperature I/O.
- Real-time Linux operating system.
- Dual-core ARM Cortex-A7 processor.
- Dual Ethernet ports for industrial networking.
- Integrated CAN and CANopen communications.
- RS-485 serial interface included.
- CODESYS V3.5 and Node-RED compatibility.
- Designed for automation, IIoT and edge computing applications.
Key Features
- 8 digital inputs.
- 4 digital outputs.
- 2 analogue inputs.
- 2 analogue outputs.
- 2 temperature measurement inputs (Pt1000/Ni1000).
- 2 × RJ45 Ethernet ports.
- CAN and CANopen communications.
- RS-485 serial interface.
- MicroSD card slot.
- ARM Cortex-A7 dual-core processor (650 MHz).
- Real-time Linux with PREEMPT_RT patch.
- CODESYS V3.5 programming environment.
- Node-RED support.
- Web visualisation capabilities.
- Industrial DIN rail mounting.
Built for Modern Industrial Connectivity
The WAGO 751-9401 combines industrial control functionality with advanced networking capabilities. Unlike conventional compact PLCs, it includes CAN/CANopen communications alongside Ethernet and RS-485 interfaces, enabling direct integration with sensors, field devices and distributed control systems. Its open Linux platform also supports Docker-based applications and modern edge computing strategies.
Support for MQTT, OPC UA and industrial Ethernet protocols allows seamless communication between field devices, SCADA systems and cloud platforms. This makes the controller particularly attractive for digitalisation projects and Industry 4.0 deployments.
Typical Applications
- Machine automation.
- Building management systems.
- Industrial process control.
- Energy monitoring.
- Utility and infrastructure projects.
- IIoT gateways.
- Edge computing systems.
- Water and wastewater applications.
Technical Specifications
Tick the specs you need, then view products that match.
| Communication | Ethernet | |
|---|---|---|
| Coil / Supply Voltage | 24 V DC | |
| Digital Inputs | 8 | |
| Digital Outputs | 4 | |
| Analogue I/O | 2 AI / 2 AO | |
| Device Type | CPU / Controller | |
| Voltage | 24 V | |
| IP Rating | IP20 | |
| Series | Compact Controller 100 | |
| Product type | Programmable Logic Controller (PLC) | |
| Processor | Dual-core ARM Cortex-A7, 650 MHz | |
| Operating system | Real-time Linux | |
| Programming software | CODESYS V3.5, Node-RED | |
| Supply voltage | 24 V DC | |
| Digital inputs | 8 | |
| Digital outputs | 4 | |
| Analogue inputs | 2 (16-bit resolution) | |
| Analogue outputs | 2 (12-bit resolution) | |
| Temperature inputs | 2 × Pt1000/Ni1000 | |
| Ethernet ports | 2 × RJ45 | |
| CAN interface | 1 | |
| RS-485 interface | 1 | |
| Memory expansion | MicroSD card slot | |
| Protocols | Modbus TCP/UDP, Modbus RTU, EtherCAT Master, EtherNet/IP, CANopen, OPC UA, MQTT | |
| Mounting | DIN rail | |
| Protection rating | IP20 | |
| Operating temperature | -25°C to +60°C | |
| Dimensions (W × H × D) | 108 × 90 × 55 mm | |
| Weight | Approx. 206 g | |
| HS Code | 85371091 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the WAGO 751-9401 used for?
The 751-9401 is a Compact Controller 100 PLC designed for machine automation, building automation and IIoT applications requiring integrated I/O and advanced communications.
How many I/O points are included?
The controller includes 8 digital inputs, 4 digital outputs, 2 analogue inputs, 2 analogue outputs and 2 temperature measurement inputs.
Which communication interfaces are available?
The unit provides dual Ethernet ports, CAN/CANopen communications, an RS-485 serial interface and a MicroSD expansion slot.
What programming software is supported?
The controller supports CODESYS V3.5 programming and Node-RED applications running on its Linux operating system.
Does the controller support MQTT and OPC UA?
Yes. The 751-9401 supports MQTT and OPC UA communications for modern IIoT and cloud-connected automation systems.
Trusted by Automation Professionals
The WAGO 751-9401 Compact Controller 100 combines PLC control, CANopen networking, industrial Ethernet communications and Linux-based flexibility, making it an excellent platform for modern automation and Industry 4.0 projects.
