GW-KNX1 Unitronics KNX to Modbus Gateway

GW-KNX1 Unitronics KNX to Modbus Gateway

Unitronics GW-KNX1 KNX gateway for integrating Unitronics PLCs with KNX building automation systems using KNX, Modbus RTU and Modbus TCP communications.

SKU: GW-KNX1Alt SKU: GWKNX1MPN: GW-KNX1
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Why Choose the Unitronics GW-KNX1 KNX Gateway?

The Unitronics GW-KNX1 is a powerful KNX to Modbus gateway designed to seamlessly integrate Unitronics PLCs with KNX-based building automation systems. It enables communication between Unitronics Vision and UniStream controllers and devices operating on KNX networks, making it ideal for building management, HVAC, lighting control and energy management applications.

Designed specifically for building automation integration, the GW-KNX1 automatically converts Modbus communications into KNX protocol communications, allowing PLC-based automation systems to communicate with KNX-enabled devices. Configuration is simplified through dedicated KNX configuration tools available within Unitronics software environments.

Its compact industrial design, support for multiple communication protocols and wide operating temperature range make the GW-KNX1 an ideal solution for both commercial building automation and industrial infrastructure projects requiring reliable interoperability between PLCs and KNX systems.

Key Advantages

  • Provides seamless integration between Unitronics PLCs and KNX networks.
  • Converts Modbus communications to KNX automatically.
  • Compatible with both UniStream and Vision PLC platforms.
  • Supports building management and smart building applications.
  • Simple configuration using dedicated Unitronics KNX tools.
  • Supports Ethernet and RS-485 communications.
  • Industrial-grade design for long-term reliability.

Key Features

  • Unitronics GW-KNX1 KNX Gateway.
  • KNX communication support.
  • Modbus RTU communication support.
  • Modbus TCP communication support.
  • PLC interface via Modbus RS-485.
  • Ethernet connectivity through RJ45 port.
  • Dedicated KNX network interface.
  • Configuration tools available in UniLogic and VisiLogic.
  • Industrial gateway architecture.

Connect PLC Systems to KNX Building Networks

The GW-KNX1 enables Unitronics PLCs to exchange data directly with KNX-enabled building automation devices. This allows lighting systems, HVAC equipment, security systems and energy management devices to be integrated into a unified automation platform.

By translating Modbus communications into KNX protocol communications, the gateway simplifies system integration and enables industrial PLCs to become part of modern smart building infrastructures without requiring complex custom development.

Typical Applications

  • Building Management Systems (BMS).
  • KNX building automation networks.
  • HVAC control systems.
  • Lighting automation.
  • Energy monitoring and management.
  • Commercial building infrastructure.
  • Smart building projects.
  • Industrial facility management.

Technical Specifications

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Supported Protocols KNX, Modbus RTU
Device Type Communication / Function Module
Coil / Supply Voltage 9–30 V DC
Communication KNX, Modbus RTU
Voltage 30 V
Product type KNX to Modbus Gateway
Supported protocols KNX, Modbus RTU, Modbus TCP
PLC interface Modbus RS-485
Ethernet port 1 × RJ45
KNX connection Dedicated KNX interface
Serial communication RS-485
Supply voltage 9-30 V DC or 12-24 V AC
Nominal supply voltage 12 V DC / 24 V DC
Operating temperature -40°C to +75°C
Connectors RJ45, 6-pin and 3-pin terminals
Application Building automation integration
Mounting Control panel installation

Frequently Asked Questions

What is the Unitronics GW-KNX1 used for?

The GW-KNX1 is used to connect Unitronics PLCs to KNX building automation networks, enabling communication between Modbus-based controllers and KNX devices.

Which communication protocols does the GW-KNX1 support?

The gateway supports KNX, Modbus RTU and Modbus TCP communications.

Which Unitronics PLCs are compatible with the GW-KNX1?

The gateway is designed to work with compatible Unitronics Vision and UniStream PLC platforms.

How is the GW-KNX1 configured?

Configuration is performed using dedicated KNX configuration tools available within Unitronics UniLogic and VisiLogic software environments.

What applications commonly use the GW-KNX1?

The gateway is commonly used in building automation projects including HVAC control, lighting management, energy monitoring and smart building systems.

Trusted by Building Automation Professionals

Unitronics communication gateways are widely used by automation engineers and system integrators to connect industrial PLC systems with modern building automation networks, providing reliable interoperability and simplified integration.