Wago 750-890/040-000 PLC - ETHERNET Programmable Fieldbus Controller Multitasking MODBUS/TCP/IP SD memory card, XTR - Extreme version Dark Gray

Why Choose the WAGO 750-890/040-000 Modbus TCP Controller?

The WAGO 750-890/040-000 is a robust 4th-generation Modbus TCP programmable controller designed for demanding industrial automation environments using the modular WAGO I/O System 750. This controller combines high-performance PLC processing, industrial Ethernet communication and scalable modular I/O integration in a compact DIN-rail device.

Featuring two Ethernet interfaces with an integrated switch, the controller supports efficient line-topology network wiring, eliminating the need for additional external switches or hubs. Both ports support Auto-Negotiation and Auto-MDI(X), ensuring fast and reliable Ethernet communication within automation networks. :contentReference

The 750-890/040-000 XTR version is designed for harsh industrial environments, providing extended temperature tolerance and enhanced resistance to electrical interference, shock and vibration. This makes it suitable for demanding applications such as outdoor automation systems, energy infrastructure and heavy industrial machinery. :contentReference

Key Advantages

• High-performance 4th-generation Modbus TCP PLC controller.
• Extreme environment (XTR) version for harsh industrial conditions.
• Dual Ethernet interfaces with integrated switch for line topology networking.
• Supports the modular WAGO I/O System 750 and 753 Series.
• Integrated web server for configuration and diagnostics.
• Expandable architecture enabling scalable automation systems.

Key Features

• Modbus TCP programmable controller.
• 32-bit CPU with multitasking PLC processing.
• 2 × RJ-45 Ethernet interfaces (10/100 Mbit/s).
• Integrated Ethernet switch supporting line topology.
• Supports Modbus TCP and Modbus UDP communication.
• Integrated web server for configuration and system diagnostics.
• SD / SDHC memory card slot for program transfer and data storage.
• DIN-rail mounting for industrial control cabinets.

Technical Specifications

• Manufacturer: WAGO
• Series: WAGO I/O System 750
• Model: 750-890/040-000
• Product type: Modbus TCP programmable controller (XTR version)
• Controller generation: 4th generation
• Processor: 32-bit CPU
• Program memory: approx. 8 MB
• Non-volatile memory: approx. 32 kB
• Programming standard: IEC 61131-3
• Programming environment: WAGO-I/O-PRO (CODESYS based)
• Communication protocols: Modbus TCP, Modbus UDP
• Ethernet protocols: HTTP(S), BootP, DHCP, DNS, SNTP, SNMP, FTP(S)
• Ethernet interfaces: 2 × RJ-45 (10/100 Mbit/s)
• Memory expansion: SD / SDHC memory card slot (up to 32 GB)
• Supply voltage: 24 V DC
• Maximum I/O modules: up to 64 modules without bus extension
• Operating temperature: approx. −40 °C to +70 °C (XTR version)
• Mounting: DIN rail
• Protection rating: IP20

Industrial Modbus Ethernet Connectivity

Modbus TCP is widely used across industrial automation networks to connect PLC controllers, sensors, actuators and supervisory control systems. The WAGO 750-890/040-000 controller combines Ethernet networking with PLC processing to enable distributed control architectures where local controllers manage field devices while exchanging data with SCADA platforms or higher-level control systems. :contentReference

Through the modular architecture of the WAGO I/O System 750, engineers can connect digital inputs, analogue modules and specialised communication interfaces to build scalable automation solutions suitable for machine automation, energy infrastructure and industrial process systems. :contentReference

Typical Applications

• Industrial machine automation systems.
• Distributed PLC and remote I/O architectures.
• Modbus TCP industrial communication networks.
• Process monitoring and manufacturing automation.
• Automation in harsh or extreme environmental conditions.

Trusted by Automation Engineers

WAGO Modbus TCP controllers are widely used by automation engineers to implement reliable distributed control systems with modular I/O expansion and industrial Ethernet networking.