Modbus RS485 master - KNX Gateway

DIN-Rail mount modules

CODE: EK-BH1-TP-485

DESCRIPTION

Device working as a gateway (protocol conversion) between a RS485 serial network with Modbus RTU protocol and a KNX (TP) network. Master function on the Modbus RTU network. Mounting in distribution board on EN 60715 rail (4 modular units, each 18 mm). To be used in KNX installations for home and building automation.

FUNCTIONS / FEATURES

Modbus side

  • Electrically insulated RS485 serial communication port, 1-way DIP switch to activate the line terminator (120 Ohm)
  • Modbus master RTU (Remote Terminal Unit) communication
  • Communication speed from 1200 to 115200 baud
  • Device addressing from 0 to 250
  • Register exchange of Coil, Input, and Input Register Holding Register type
  • Reading and writing of single and multiple registers
  • Volatile support memory with �Modbus image� buffer of 1440 bytes

 

KNX side

  • KNX TP (twisted pair) 9600 baud communication port, electrically insulated from power supply
  • Volatile support memory with �image KNX� buffer of 1440 bytes
CONFIGURATION AND COMMISSIONING

A detailed description of the parameters can be found in the application manual of the device. Configuration and commissioning require the application software CGEKBH1TP485.exe