Why Choose the WAGO 750-653/025-018 RS-485 Serial Interface Module?
The WAGO 750-653/025-018 is a compact RS-485 / RS-422 serial communication interface module designed for integration with the WAGO I/O System 750. It enables PLC controllers and distributed automation systems to communicate reliably with field devices such as drives, sensors, meters and instrumentation that operate on RS-485 serial networks.
By providing a direct serial interface within the WAGO I/O node, the module allows industrial equipment to be connected to fieldbus-based control architectures without requiring additional gateways. This simplifies system integration while enabling dependable communication between PLC controllers and serial field devices.
With strong interference immunity and galvanic isolation between field signals and the system bus, the module ensures stable communication even in electrically noisy industrial environments.
Key Advantages
Integrated RS-485 / RS-422 serial communication interface.
Reliable communication with industrial sensors and instruments.
Supports long communication distances up to approximately 1000 m.
High immunity to electrical interference.
Extended temperature range for industrial environments.
Compact module for WAGO I/O System 750 installations.
Key Features
RS-485 / RS-422 serial interface.
Adjustable communication parameters.
Baud rate range from 1.2 kBd to 19.2 kBd.
Default communication speed of 9.6 kBd.
Configurable parity and data format.
Full-duplex communication channel (TxD / RxD).
Status LEDs for transmit, receive and module diagnostics.
DIN rail mounting for modular automation systems.
RS-485 Communication in Industrial Automation
RS-485 communication is widely used in industrial control systems because it allows multiple devices to share a single communication bus while supporting long cable distances. It is commonly used for protocols such as Modbus RTU and other distributed automation networks.
The WAGO 750-653/025-018 provides a reliable connection between RS-485 field devices and PLC automation systems. By transferring serial communication through the fieldbus controller, engineers can integrate instrumentation, controllers and monitoring devices into modern distributed automation architectures.
Typical Applications
Connecting Modbus RTU field devices.
Integration of industrial drives and controllers.
Communication with energy meters and monitoring equipment.
Distributed industrial automation networks.
Industrial process monitoring and diagnostics.
Technical Specifications
IP Rating
IP20
Series
I/O System 750
Module type
RS-485 serial interface
Supported signals
RS-485 / RS-422
Baud rate range
1.2 to 19.2 kBd
Default baud rate
9.6 kBd
Data format
configurable (7/8 data bits, 1/2 stop bits)
Parity
selectable
Maximum line length
approx. 1000 m using twisted pair cable
Input buffer
approx. 120 bytes
Output buffer
approx. 16 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® terminals
Mounting
DIN-35 rail
Protection rating
IP20
Operating temperature
−20 to +60 °C
Module width
approx. 12 mm
HS Code
85389099
Country of Manufacture
Germany
Frequently Asked Questions
What is the WAGO 750-653/025-018 used for?
The module provides an RS-485 communication interface allowing PLC controllers to communicate with industrial devices connected to RS-485 networks.
What communication standards does the module support?
The module supports RS-485 and RS-422 serial communication standards.
What baud rates are supported?
The interface supports communication speeds from approximately 1.2 kBd to 19.2 kBd, with 9.6 kBd as the default configuration.
How far can RS-485 communication reach?
RS-485 communication can typically reach distances of up to approximately 1000 metres using twisted pair cable.
Which automation platforms support this module?
The module integrates with WAGO I/O System 750 fieldbus couplers and programmable controllers.
Trusted by Automation Engineers
WAGO I/O System 750 communication modules enable automation engineers to integrate serial field devices and distributed instrumentation into reliable PLC-based control systems.
IP Rating
IP20
Series
I/O System 750
Module type
RS-485 serial interface
Supported signals
RS-485 / RS-422
Baud rate range
1.2 to 19.2 kBd
Default baud rate
9.6 kBd
Data format
configurable (7/8 data bits, 1/2 stop bits)
Parity
selectable
Maximum line length
approx. 1000 m using twisted pair cable
Input buffer
approx. 120 bytes
Output buffer
approx. 16 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® terminals
Mounting
DIN-35 rail
Protection rating
IP20
Operating temperature
−20 to +60 °C
Module width
approx. 12 mm
HS Code
85389099
Country of Manufacture
Germany
No documents available for this product.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...