750-312 | Wago MODBUS RTU RS-485 Fieldbus Coupler for WAGO I/O System 750

Wago · Industrial Automation & Electrical

Description  The Wago 750-312 fieldbus coupler is designed to connect the WAGO I/O System 750 as a slave device to a MODBUS RTU network via RS-485. It manages communication between fieldbus systems and modular I/O, supporting reliable data exchange for digital, analog, and specialty modules. This unit is optimized for industrial automation environments requiring stable serial communication and flexible I/O expansion.     Technical Specifications  Condition New/Never Used Surplus Brand Wago Category Industrial Automation Part Number 750-312 Subcategory Fieldbus Couplers Fieldbus Protocol MODBUS RTU Transmission Medium Shielded twisted pair cable (2 × 0.25 mm²) Baud Rate 150 Baud to 19.2 kBd Max. I/O Points 6000 Max. Fieldbus Nodes 99 Field Supply Voltage DC 24 V (-25 % / +30 %) System Supply Voltage DC 24 V (-25 % / +30 %) Current Consumption (5 V System) 350 mA Degree of Protection IP20 Mounting DIN-35 rail Operating Temperature 0 to 55 °C Weight 194.889 g     Information About 750-312 The 750-312 is a MODBUS RTU fieldbus coupler within the WAGO I/O System 750 series, engineered for distributed automation architectures. It supports mixed I/O configurations, enabling simultaneous handling of analog word-based data and digital bit-based signals within a single node. The coupler automatically organizes process images based on the physical order of connected I/O modules, ensuring deterministic data mapping. Designed for industrial control panels and DIN-rail mounting, it integrates power distribution, communication management, and system diagnostics in a compact housing. Key Features: MODBUS RTU Communication: Operates as a slave device on RS-485 networks using MODBUS RTU protocol. Flexible I/O Expansion: Supports digital, analog, and specialty I/O modules within the 750/753 series. High I/O Capacity: Handles up to 6000 I/O points for scalable automation systems. Automatic Process Image Creation: Organizes data according to the physical sequence of installed modules. Integrated Power Distribution: Supplies system and field power via internal power jumper contacts. Robust Electrical Isolation: Provides 500 V isolation between system and field supply for enhanced safety. Wide Operating Temperature Range: Suitable for industrial environments from 0 to 55 °C during operation. DIN-Rail Mountable Design: Compact form factor for efficient installation in control cabinets. Certified Industrial Compliance: Meets CE and marine-related EMC and vibration standards. The 750-312 delivers the reliability and precision required for distributed industrial control and MODBUS-based automation systems.

Brand: Wago · Category: Industrial Automation & Electrical

Key features

• MODBUS RTU Communication: Operates as a slave device on RS-485 networks using MODBUS RTU protocol.
• Flexible I/O Expansion: Supports digital, analog, and specialty I/O modules within the 750/753 series.
• High I/O Capacity: Handles up to 6000 I/O points for scalable automation systems.
• Automatic Process Image Creation: Organizes data according to the physical sequence of installed modules.
• Integrated Power Distribution: Supplies system and field power via internal power jumper contacts.
• Robust Electrical Isolation: Provides 500 V isolation between system and field supply for enhanced safety.
• Wide Operating Temperature Range: Suitable for industrial environments from 0 to 55 °C during operation.
• DIN-Rail Mountable Design: Compact form factor for efficient installation in control cabinets.
• Certified Industrial Compliance: Meets CE and marine-related EMC and vibration standards.

Specifications

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