WAGO 750-843 Ethernet programmable fieldbus controller with integrated PLC functionality, MODBUS/TCP communication and modular I/O expansion for industrial automation applications.
SKU:750-843Alt SKU:750843MPN:750-843
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The WAGO 750-843 is a compact and reliable Ethernet programmable fieldbus controller designed for industrial automation, machine control and distributed I/O applications. As part of the trusted WAGO I/O System 750 series, this controller combines PLC functionality with Ethernet communications, providing an efficient and scalable solution for modern automation systems.
The controller supports Ethernet TCP/IP networking and MODBUS/TCP communication, allowing seamless integration with HMIs, SCADA systems, industrial PCs and networked automation devices. Its decentralised architecture enables local signal processing, reducing network traffic and improving overall system responsiveness.
Designed for OEMs, panel builders and automation engineers, the WAGO 750-843 offers reliable operation, IEC 61131-3 programming support and flexible expansion through the extensive range of WAGO 750 Series I/O modules. The controller is ideal for applications requiring dependable Ethernet-based control and distributed automation.
Key Advantages
Integrated PLC and Ethernet controller in a compact housing.
Supports Ethernet TCP/IP and MODBUS/TCP communication.
Compatible with the modular WAGO I/O System 750.
Supports IEC 61131-3 programming standards.
DIN rail mounting for simple panel installation.
Decentralised control architecture improves performance.
Reliable operation in demanding industrial environments.
Key Features
WAGO I/O System 750 Ethernet Controller.
Integrated PLC functionality.
10 Mbit Ethernet interface.
Support for MODBUS/TCP and TCP/IP networking.
24 V DC power supply.
Expandable with up to 64 I/O modules.
RJ45 Ethernet connection.
IEC 61131-3 compliant programming.
DIN rail mounting.
IP20 protection rating.
Reliable Ethernet Automation Control
The WAGO 750-843 enables efficient communication between field devices, controllers and supervisory systems using standard Ethernet technologies. By processing signals locally and supporting modular I/O expansion, the controller helps improve machine efficiency while simplifying system design.
Its Ethernet connectivity makes it particularly suitable for networked automation environments where rapid communication, remote diagnostics and scalable control architectures are essential. The flexible programming environment allows engineers to develop customised automation strategies for a wide range of industrial applications.
Typical Applications
Industrial machine automation.
Material handling systems.
Packaging and production machinery.
Building automation systems.
Energy management applications.
Process control installations.
Remote I/O systems.
OEM machine building projects.
Technical Specifications
Voltage
24 V
IP Rating
IP20
Series
I/O System 750
Product type
Ethernet Programmable Fieldbus Controller
Protocols
MODBUS/TCP, TCP/IP, UDP
Supply voltage
24 V DC
Ethernet interface
RJ45
Ethernet speed
10 Mbit/s
Programming standard
IEC 61131-3
Maximum I/O modules
Up to 64
Protection rating
IP20
Operating temperature
0°C to +55°C
Mounting type
DIN rail
Dimensions (W × H × D)
approx. 51 × 65 × 100 mm
Weight
approx. 197 g
HS Code
85371091
Country of Manufacture
Germany
Frequently Asked Questions
What is the WAGO 750-843 used for?
The controller is used for industrial automation applications requiring PLC functionality, Ethernet networking and distributed I/O control.
Which communication protocols are supported?
The controller supports Ethernet TCP/IP communication and MODBUS/TCP networking for industrial automation systems.
What power supply does the controller require?
The WAGO 750-843 operates from a standard 24 V DC industrial power supply.
Can additional I/O modules be connected?
Yes, the controller supports expansion using the WAGO I/O System 750 modular I/O range.
Does the controller support IEC 61131-3 programming?
Yes, the controller supports IEC 61131-3 programming for industrial control applications.
Trusted by Automation Engineers Worldwide
WAGO Ethernet controllers are widely used throughout industrial automation environments where dependable communications, modular expansion and reliable machine control are required for long-term operational performance.
Voltage
24 V
IP Rating
IP20
Series
I/O System 750
Product type
Ethernet Programmable Fieldbus Controller
Protocols
MODBUS/TCP, TCP/IP, UDP
Supply voltage
24 V DC
Ethernet interface
RJ45
Ethernet speed
10 Mbit/s
Programming standard
IEC 61131-3
Maximum I/O modules
Up to 64
Protection rating
IP20
Operating temperature
0°C to +55°C
Mounting type
DIN rail
Dimensions (W × H × D)
approx. 51 × 65 × 100 mm
Weight
approx. 197 g
HS Code
85371091
Country of Manufacture
Germany
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...