Why Choose the WAGO 750-890 Modbus TCP Controller?
The WAGO 750-890 is a powerful 4th generation Modbus TCP programmable controller designed for industrial automation, machine control and distributed I/O applications. As part of the advanced WAGO I/O System 750 series, this controller combines PLC functionality, Ethernet networking and modular I/O expansion within a compact DIN rail-mounted platform.
Designed for modern industrial environments, the controller supports Modbus TCP and Modbus UDP communications while integrating seamlessly into Ethernet-based control systems. Its dual Ethernet interfaces and integrated switch enable line topology network configurations, reducing infrastructure requirements and simplifying installation.
Featuring a powerful 32-bit processor, 8 MB program memory, 8 MB data memory and an integrated SD card slot, the 750-890 delivers exceptional performance for demanding automation tasks. It is ideal for machine builders, OEMs and system integrators seeking scalable, reliable and future-ready control solutions.
Key Advantages
Integrated PLC and Modbus TCP controller.
8 MB program memory and 8 MB data memory.
Dual Ethernet interfaces with integrated switch.
Supports Modbus TCP and Modbus UDP communications.
Integrated web server for diagnostics and management.
IEC 61131-3 programming support.
Supports up to 250 I/O modules per node.
Integrated SD card slot for memory expansion and data storage.
Key Features
WAGO I/O System 750 Controller.
4th generation programmable controller.
Modbus TCP and Modbus UDP communication.
Dual 10/100 Mbit/s Ethernet interfaces.
8 MB program memory.
8 MB data memory.
32 KB non-volatile memory.
Integrated SD and SDHC card slot supporting up to 32 GB.
Built-in web server and web visualisation.
Capacitor-backed real-time clock.
24 V DC operation.
DIN rail mounting.
IP20 protection rating.
Advanced Ethernet-Based Industrial Control
The WAGO 750-890 is designed to operate as a high-performance programmable controller within Ethernet automation networks. The integrated Ethernet switch enables simple line topology installations, reducing the need for additional networking hardware while maintaining reliable communications throughout the system.
Support for IEC 61131-3 programming languages including Ladder Diagram, Function Block Diagram, Structured Text and Sequential Function Chart allows engineers to develop sophisticated automation applications. The integrated web server provides convenient diagnostics, monitoring and remote configuration capabilities.
Typical Applications
Industrial machine automation.
Process control systems.
Packaging machinery.
Material handling equipment.
Building automation systems.
Energy monitoring and management.
Distributed Ethernet I/O networks.
OEM machinery and control panels.
Technical Specifications
Voltage
24 V
IP Rating
IP20
Series
I/O System 750
Product type
Modbus TCP Programmable Controller
Generation
4th Generation
Processor
32-bit CPU
Communication protocols
Modbus TCP, Modbus UDP
Ethernet protocols
HTTP(S), BootP, DHCP, DNS, SNTP, SNMP, FTP(S)
Ethernet ports
2 × RJ45
Ethernet speed
10/100 Mbit/s
Program memory
8 MB
Data memory
8 MB
Non-volatile memory
32 KB
Memory card support
SD and SDHC up to 32 GB
Supply voltage
24 V DC
Maximum I/O modules
250 per node
Maximum modules without bus extension
64
Protection rating
IP20
Operating temperature
0°C to +55°C
Mounting type
DIN rail
Dimensions (H × W × D)
approx. 100 × 61.5 × 71.9 mm
Weight
approx. 152 g
HS Code
85371091
Country of Manufacture
Germany
Frequently Asked Questions
What is the WAGO 750-890 used for?
The controller is used for industrial automation applications requiring PLC functionality, Modbus TCP communication and distributed I/O management.
Which communication protocols are supported?
The controller supports Modbus TCP, Modbus UDP and a wide range of Ethernet protocols including HTTP(S), DHCP, DNS, SNMP and FTP(S).
How much memory does the controller provide?
The WAGO 750-890 features 8 MB of program memory, 8 MB of data memory and 32 KB of non-volatile memory.
Does the controller support memory expansion?
Yes, the controller includes an integrated SD and SDHC card slot supporting memory cards up to 32 GB.
Can additional I/O modules be connected?
Yes, the controller supports the complete WAGO 750 and 753 Series modular I/O range and can support up to 250 modules per node depending on the system configuration.
Trusted by Automation Professionals Worldwide
WAGO 4th generation controllers are widely used throughout industrial automation environments where reliable Ethernet communications, scalable I/O integration and advanced PLC functionality are essential for efficient and dependable machine control.
Voltage
24 V
IP Rating
IP20
Series
I/O System 750
Product type
Modbus TCP Programmable Controller
Generation
4th Generation
Processor
32-bit CPU
Communication protocols
Modbus TCP, Modbus UDP
Ethernet protocols
HTTP(S), BootP, DHCP, DNS, SNTP, SNMP, FTP(S)
Ethernet ports
2 × RJ45
Ethernet speed
10/100 Mbit/s
Program memory
8 MB
Data memory
8 MB
Non-volatile memory
32 KB
Memory card support
SD and SDHC up to 32 GB
Supply voltage
24 V DC
Maximum I/O modules
250 per node
Maximum modules without bus extension
64
Protection rating
IP20
Operating temperature
0°C to +55°C
Mounting type
DIN rail
Dimensions (H × W × D)
approx. 100 × 61.5 × 71.9 mm
Weight
approx. 152 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
Trusted Manfacturers
● frequently asked questions
Common questions about our products and support
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
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We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
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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...