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Wago 750-315/300-000 FC Modbus, Rs485 115.2Kbd
WAGO 750-315/300-000 Modbus RTU fieldbus coupler with RS-485 interface for connecting WAGO I/O System 750/753 modules to Modbus automation networks.
£388.94
Why Choose the WAGO 750-315/300-000 Modbus Fieldbus Coupler?
The WAGO 750-315/300-000 is a Modbus RTU fieldbus coupler designed to connect the modular WAGO I/O System 750/753 to a Modbus network via RS-485 communication. Acting as the interface between field devices and the automation controller, the coupler exchanges process data between connected I/O modules and a Modbus master system such as a PLC or SCADA controller.
The coupler automatically detects all connected digital, analogue and speciality modules and creates a local process image based on the order in which modules are installed. Digital signals are transmitted bit-by-bit, while analogue and specialty module data are transferred in words or bytes for efficient communication across the Modbus network. :contentReference
Designed for scalable distributed automation systems, the coupler can support up to 64 connected I/O modules within a single node, enabling flexible control architectures for machine automation, building systems and industrial process applications. :contentReference
Key Advantages
- Reliable Modbus RTU communication via RS-485 interface.
- Automatic detection and configuration of connected I/O modules.
- Supports mixed configurations of digital, analogue and speciality modules.
- Scalable architecture supporting up to 64 modules per node.
- Efficient process data exchange between field devices and PLC systems.
- Compact DIN rail module designed for industrial automation cabinets.
Key Features
- Modbus RTU fieldbus coupler for WAGO I/O System 750/753.
- Communication via RS-485 interface.
- Selectable communication speed up to 115.2 kBd.
- Automatic generation of a local process image for connected modules.
- Supports mixed digital and analogue I/O configurations.
- 9-pin D-Sub fieldbus connector.
- DIN rail mounting for control cabinets.
Industrial Automation Fieldbus Communication
Fieldbus couplers act as the communication interface between distributed I/O modules and automation controllers. The WAGO 750-315/300-000 enables sensors, actuators and automation equipment connected to WAGO I/O modules to communicate with PLC systems over the Modbus RTU protocol.
Within the WAGO I/O System architecture, the coupler automatically constructs the process image of all connected modules. Digital signals are transmitted as bits while analogue data is transmitted as words or bytes, allowing mixed-signal automation installations within a single distributed I/O node. :contentReference
Typical Applications
- Distributed PLC I/O systems using Modbus networks.
- Industrial machine automation.
- Factory automation and production equipment.
- Process monitoring and control systems.
- Integration of sensors, actuators and analogue devices.
Technical Specifications
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| Supported Protocols | Modbus RTU | |
|---|---|---|
| Product Series | WAGO I/O System 750 | |
| Device Type | Communication / Function Module | |
| Coil / Supply Voltage | 24 V DC | |
| Communication | Modbus RTU, RS485 | |
| Voltage | 24 V | |
| IP Rating | IP20 | |
| Series | I/O System 750 / 753 | |
| Device type | Fieldbus coupler | |
| Communication protocol | Modbus RTU | |
| Communication interface | RS-485 | |
| Transmission speed | up to 115.2 kBd | |
| Maximum modules per node | 64 | |
| Maximum fieldbus nodes | up to 247 slaves per master | |
| Supply voltage | 24 V DC | |
| 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 | |
| HS Code | 85176200 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What does the WAGO 750-315/300-000 fieldbus coupler do?
It connects the WAGO I/O System 750/753 to a Modbus RTU network and manages communication between the PLC and connected I/O modules.
How many modules can be connected?
The coupler supports up to 64 connected I/O modules within a single distributed I/O node.
What communication interface is used?
The coupler communicates using the Modbus RTU protocol via an RS-485 interface.
Does the coupler support analogue and digital modules?
Yes. It supports mixed configurations of digital, analogue and specialty modules within the WAGO I/O system.
Where is the coupler installed?
The coupler is installed at the start of a WAGO I/O node on a DIN rail inside a PLC control cabinet or distributed automation system.
Trusted by Automation Engineers
WAGO fieldbus couplers are widely used by machine builders and automation engineers to integrate distributed I/O modules into industrial control networks.
