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.
