WAGO 750-304 INTERBUS fieldbus coupler for the WAGO I/O System 750 enabling communication between distributed I/O modules and PLC systems.
£418.99
The WAGO 750-304 is an INTERBUS fieldbus coupler designed to connect the modular WAGO I/O System 750 to an INTERBUS network. Acting as the communication interface between field devices and the automation controller, the coupler manages all connected I/O modules and transfers process data between the field level and the control system.
The coupler automatically detects and configures connected digital, analogue and specialty I/O modules, creating a local process image that represents the system’s inputs and outputs. This process image is then transmitted over the INTERBUS network to the PLC or control system for monitoring and control. :contentReference
Supporting up to 64 I/O modules per node and up to 4096 I/O points, the 750-304 provides a scalable solution for industrial automation, machine control and distributed I/O installations. :contentReference
Fieldbus couplers act as the central communication interface between distributed I/O modules and automation controllers. The WAGO 750-304 connects field-level devices to an INTERBUS network, enabling real-time exchange of process data between sensors, actuators and PLC systems.
Within the WAGO I/O System 750 architecture, the coupler automatically manages the data flow of connected modules. Digital signals are transmitted bit-by-bit while analogue signals are transferred word-by-word, allowing mixed module configurations within a single distributed I/O node. :contentReference
| Voltage | 24 V |
|---|---|
| IP Rating | IP20 |
| Series | I/O System 750 |
| Device type | Fieldbus coupler |
| Communication protocol | INTERBUS |
| Transmission speed | 500 kBd |
| Maximum modules per node | 64 |
| Maximum I/O points | approx. 4096 |
| Process image size | up to 64 bytes input / 64 bytes output |
| Supply voltage | 24 V DC (−15% to +20%) |
| Power jumper contact current | up to 10 A |
| Fieldbus connection | 9-pin D-Sub connector |
| Mounting | DIN rail (EN 60715) |
| Operating temperature | approx. 0 °C to +55 °C |
| Ingress protection | IP20 |
The coupler connects the WAGO I/O System 750 to an INTERBUS network and manages communication between the PLC and connected I/O modules.
The coupler can support up to 64 I/O modules within a single node.
The system can support up to 4096 I/O points, depending on the connected modules and system configuration.
The 750-304 communicates using the INTERBUS fieldbus protocol.
The coupler is installed at the start of a WAGO I/O node on a DIN rail within PLC control cabinets or distributed automation systems.
WAGO fieldbus couplers are widely used by machine builders and automation engineers to integrate distributed I/O modules into industrial control networks.
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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...