KNX/Modbus-RTU Gateway

KNX Modbus gateway for bidirectional data exchange between Modbus RTU and KNX devices. It is universally applicable and supports a wide range of Modbus and KNX data types. No additional Modbus supply voltage is required. Power is supplied via the KNX connection. Modbus and KNX are galvanically isolated.

Ideal for integrating additional devices (e.g. PV inverters, wall boxes) into the KNX network via Modbus TCP.

Features:

• KNX Modbus Gateway RTU485 with up to 200 freely configurable channels
• Can be used as a Modbus master or slave. Slave ID can be selected separately for each channel
• Simple scaling settings using mathematical functions. Value range conversions can be set for each channel
• Multi-read functionality on the Modbus side. Read/write function with 2 objects per channel
• Value comparison blocks, each with 4 comparison values and operations
• Message texts for displaying the device status.

Technical data:

• Number of Modbus participants: 32
• Physical Modbus interface: RS485, 2-wire
• Modbus power supply: Integrated via KNX bus
• Modbus transmission mode: RTU, ASCII
• Terminating resistor: 120 Ω, switchable
• Available product databases: from ETS 5
• KNX interface specification: TP-256 with long frame support
• Supply voltage: KNX bus
• Inputs/outputs: 2 mm safety sockets
• Dimensions: 294 x 114 x 60 mm
• Weight: 0.8 kg