Wago 750-815/300-000 Controller Modbus, Rs485 115.2Kbd

Why Choose the WAGO 750-815/300-000 MODBUS RTU Controller?

The WAGO 750-815/300-000 is a compact MODBUS RTU programmable controller designed for distributed automation systems built on the WAGO I/O System 750. It combines PLC functionality with a MODBUS fieldbus interface, allowing control logic execution and communication with field devices across industrial networks.

Using an RS-485 communication interface with speeds up to 115.2 kBd, the controller exchanges process data with higher-level systems or supervisory controllers. At the same time, it manages all connected digital, analogue and speciality I/O modules within the WAGO modular automation platform. :contentReference

The controller supports IEC 61131-3 programming, enabling engineers to develop automation logic using common PLC languages such as Ladder Diagram, Structured Text and Function Block Diagram. This makes the device ideal for machine control, process automation and distributed remote I/O systems. :contentReference

Key Advantages

• Integrated PLC controller with MODBUS RTU communication.
• RS-485 interface supporting speeds up to 115.2 kBd.
• Supports IEC 61131-3 programming languages.
• Direct integration with modular WAGO I/O System 750 modules.
• Reliable distributed automation architecture.
• Compact DIN-rail installation for industrial control cabinets.

Key Features

• MODBUS RTU programmable controller.
• RS-485 communication interface.
• Communication speeds from 150 Bd to 115.2 kBd.
• PLC programming via WAGO-I/O-PRO (CODESYS-based).
• Access to all fieldbus and I/O process data.
• LED indicators for communication and diagnostic status.
• DIN-rail mounting according to EN 60715.
• Compatible with the full WAGO 750 I/O module range.

Technical Specifications

• Manufacturer: WAGO
• Series: WAGO I/O System 750
• Model: 750-815/300-000
• Controller type: MODBUS RTU programmable controller
• Communication interface: RS-485
• Communication protocol: MODBUS RTU
• Maximum baud rate: 115.2 kBd
• Programming standard: IEC 61131-3
• Programming software: WAGO-I/O-PRO
• Cycle time: < 3 ms for 1000 bit instructions
• Supply voltage: 24 V DC
• Memory size: approx. 32 kB
• Mounting: DIN-35 rail
• Operating temperature: 0 to 55 °C
• Protection rating: IP20
• Expandable I/O: Supports multiple WAGO 750 series I/O modules

MODBUS Control in Industrial Automation

MODBUS RTU is widely used in industrial automation for communication between controllers, sensors, drives and supervisory systems. By using serial RS-485 communication, automation networks can connect devices over long distances with reliable data transmission.

The WAGO 750-815/300-000 controller integrates PLC logic execution and MODBUS communication in a single device, enabling engineers to implement decentralised control architectures while maintaining efficient fieldbus communication across industrial systems. :contentReference

Typical Applications

• Distributed industrial automation systems.
• MODBUS-based machine control networks.
• Process monitoring and control installations.
• Remote I/O stations within industrial plants.
• Energy management and building automation systems.

Trusted by Automation Engineers

WAGO MODBUS controllers are widely used in industrial automation systems to provide reliable distributed PLC control and modular I/O integration across industrial communication networks.