KNX Bridge – ModBus

  • ModBus bridge to KNX based bus systems
  • Customizable Gateway Platform
  • KNX Objects: max 255*
  • KNX – RS485/RS232 – IP Multiprotocol
  • Configuration via embedded webserver / WLAN
  • Easy firmware update
  • OPTIONAL: KNX IP Tunneling Server to interface KNX bus to ETS (GW KNX-485 ETS)
  • OPTIONAL: Optoisolated serial port**** (upon specification)


KNX Bridge- Bridge

The KNX-ZBC is a bridge between the KNX bus and a RS485 Modbus RTU world. Thanks to this device all the
ZB-Connection sensors are now available to KNX installers and System Integrators. It can be used in combination with devices such as environmental sensors (temperature, humidity, light and CO2), energy meters, I/O. etc.
With KNX-ZBC it is possible to have a wireless arm in your installation with the capablity to install a battery
powered sensor in the place where it is needed or where it is more convenient. Third parties ModBus device are also easy to include in the installation. Meters like energy, flow, pressure, gas, water and any electronic devices based on ModBus are now easily installable into your systems.

Technical Specs
2 X CPU on Board: 1 x 8051 + 1 x MSP430 with on chip RAM & FLASH
Power Supply
12÷24Vac/dc LPS/PELV and/or isolated PoE
Operating Temperature Range
-25°C to +85°C**
Very Low Power Consumptions
External FLASH
2 Mbit
KNX Objects
max 255*
KNX Communication Objects supported
DPT1 to DPT23
KNX Addresses
Programmable by embedded web server
Serial Interface
2 x RS485 (PFADGK000001)
1 x RS485 + 1 x RS232 (PFADGK00002)
2 x RS232 (PFADGK000003)
Supported Protocols
By embedded serial ports: Custom serial and IP protocols ***
TCP/IP Connectivity through RJ45 Ethernet Port
DNS Support for remote monitoring and update
Via embedded web server on LAN and WLAN
Off-line configuration & backup with CSV standard files
Firmware upgradable via web server
Size & Weight
4 DIN Rail Modules (w*h*d) 70 x 90 x 58 [mm]
Reference Norms
EN 55024 Immunity Characteristics
EN 55022 Radio Disturbance Characteristics – Radiated & Conducted Emissions
IEC/EN 61000-3-2 Harmonics Current Emissions
IEC/EN 61000-3-3 Voltage Fluctuations and Flicker
EN 61000-4-2 Electrostatic Discharge Immunity
IEC/EN 61000-4-4 Electrical Fast Transient/Burst Immunity
IEC/EN 61000-4-5 Immunity to Surge
IEC/EN 61000-4-11 Immunity to Voltage Dips/Interruptions
EN 61000-4-3 Radiated RF Susceptibility
IEC/EN 61000-4-6 Immunity to Conducted Disturbances