Wago 750-650/003-000 Rs232 C Interface, Adjust

Why Choose the WAGO 750-650/003-000 RS-232 Serial Interface Module?

The WAGO 750-650/003-000 is a compact RS-232 serial interface module designed for integration with the WAGO I/O System 750. It enables PLC controllers and automation systems to communicate with industrial devices that use the RS-232 communication standard, including barcode scanners, printers, weighing systems and measurement equipment.

By integrating RS-232 connectivity directly within a WAGO fieldbus node, the module allows legacy serial equipment to be incorporated into modern distributed automation architectures. This simplifies system design while allowing controllers to exchange data with serial instruments used in production, laboratory and industrial monitoring environments.

The interface provides reliable full-duplex serial communication with configurable communication parameters, allowing engineers to adapt the module to a wide range of serial devices used in automation systems.

Key Advantages

• Integrated RS-232 serial communication interface.
• Allows PLC communication with serial instruments and legacy devices.
• Full-duplex communication for simultaneous transmit and receive.
• Electrical isolation between system bus and field signals.
• Compact module for WAGO I/O System 750 installations.
• Maintenance-free wiring using CAGE CLAMP® spring terminals.

Key Features

• RS-232 serial interface module.
• Full-duplex TxD/RxD communication channel.
• Supports baud rates up to approximately 115.2 kBd.
• Configurable communication parameters including parity and stop bits.
• Integrated data buffers for stable communication.
• Status LEDs for transmit, receive and module diagnostics.
• Designed for integration with WAGO I/O System 750 controllers.
• DIN rail mounting for modular industrial automation systems.

Technical Specifications

• Manufacturer: WAGO
• Series: I/O System 750
• Model: 750-650/003-000
• Module type: RS-232 serial communication interface
• Communication protocol: RS-232
• Transmission mode: Full duplex
• Maximum baud rate: approx. 115.2 kBd
• Input buffer: approx. 128 bytes
• Output buffer: approx. 128 bytes
• System supply voltage: 5 V DC via internal system bus
• Isolation voltage: approx. 500 V between system and field
• Connection technology: WAGO CAGE CLAMP® spring terminals
• Mounting: DIN-35 rail
• Protection rating: IP20
• Operating temperature: 0 to 55 °C
• Module width: approx. 12 mm

Serial Communication in Industrial Automation

RS-232 communication continues to be widely used in industrial environments for connecting specialised equipment and legacy instrumentation. Devices such as barcode scanners, printers, laboratory analysers and weighing systems frequently rely on serial communication for reliable data transfer.

The WAGO 750-650/003-000 allows these serial devices to be integrated directly into PLC automation platforms. By transferring serial data through the fieldbus controller, engineers can connect serial instruments to modern automation networks and centralise machine monitoring and data collection.

Typical Applications

• Connecting barcode scanners and industrial printers.
• Integrating weighing systems and laboratory instruments.
• Communication with legacy RS-232 industrial devices.
• Factory data acquisition systems.
• Industrial monitoring and diagnostics.

Trusted by Automation Engineers

WAGO I/O System 750 communication modules enable automation engineers to integrate serial instruments, sensors and legacy equipment into modern PLC-based control systems.