Wago 750-815/325-000 Controller Modbus, Rs485 115.2Kbd

Why Choose the WAGO 750-815/325-000 MODBUS RTU Controller?

The WAGO 750-815/325-000 is a rugged MODBUS RTU programmable controller designed for distributed automation systems built on the WAGO I/O System 750. This controller combines a MODBUS fieldbus coupler with integrated PLC functionality, enabling decentralised control and efficient communication between field devices and higher-level control systems. :contentReference

Communication takes place via an RS-485 interface supporting MODBUS RTU with data rates up to 115.2 kBd, allowing reliable long-distance industrial network communication. The controller can directly access all fieldbus and connected I/O module data, providing flexible automation control for machine and process applications. :contentReference

Application logic is developed using the IEC 61131-3 PLC programming standard within the WAGO-I/O-PRO (CODESYS-based) environment, allowing engineers to create automation programs using common languages such as Ladder Diagram, Function Block Diagram and Structured Text. :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.
• Designed for modular WAGO I/O System 750 installations.
• Enables decentralised automation control architecture.
• Compact DIN-rail design for industrial control cabinets.

Key Features

• MODBUS RTU programmable controller.
• Communication via RS-485 fieldbus interface.
• Baud rate range from 150 Bd to 115.2 kBd.
• PLC programming via WAGO-I/O-PRO (CODESYS-based).
• Direct access to fieldbus and local I/O process data.
• Programmable response to fieldbus communication failures.
• Status LEDs for diagnostics and communication monitoring.
• DIN-rail mounting according to EN 60715.

Technical Specifications

• Manufacturer: WAGO
• Series: WAGO I/O System 750
• Model: 750-815/325-000
• Controller type: MODBUS RTU programmable controller
• Communication protocol: MODBUS RTU
• Communication interface: RS-485
• Maximum baud rate: 115.2 kBd
• Processor: 16-bit CPU
• Programming standard: IEC 61131-3
• Programming software: WAGO-I/O-PRO (CODESYS V2.3)
• Program memory: 32 kB
• Data memory: 32 kB
• Maximum fieldbus nodes: up to 247
• Maximum I/O points: approx. 6000
• Maximum modules per node: 64
• Fieldbus segment length: up to 1200 m
• Supply voltage: 24 V DC
• Typical input current: approx. 500 mA
• Operating temperature: −20 to +60 °C
• Protection rating: IP20
• Mounting: DIN-35 rail

MODBUS RTU Control in Industrial Automation

MODBUS RTU is widely used in industrial automation networks for communication between controllers, sensors, drives and supervisory systems. Using the RS-485 physical layer allows reliable long-distance communication across factory or process environments while supporting multiple nodes on a single network segment. :contentReference

The WAGO 750-815/325-000 integrates PLC control and MODBUS communication in one compact device, enabling decentralised control architectures where automation tasks can be distributed across multiple intelligent nodes throughout a production facility. :contentReference

Typical Applications

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

Trusted by Automation Engineers

WAGO MODBUS controllers are widely used in industrial automation systems to deliver reliable PLC control and modular I/O integration across distributed RS-485 communication networks.