ZigBee Bridge – ModBus

  • Connecting Modbus devices to the ZigBee network
  • Using Modbus/RTU protocol and RS485 interface
  • Routing function
  • RF power 1mW
  • External antenna


ZigBee – ModBus RS485 ZR-BR-485-EM – Bridge

The ZigBee ZR-BR-485-EM Bridge mainly works connecting through the ZigBee network one or more third party ModBus devices with RS485 interface to any gateway among the ones of the 4-noks range. Thus, the PLC or the PC-SCADA connected to the Gateway can exchange information with the third party ModBus devices without the need of a wired connection. The channel prepared in this way is completely transparent.
Moreover, it can work as repeater and as “father” device for battery powered sensors.

Technical Specs
General characteristics
Chip Ember EM2420
Compatible IEEE 802.15.4
Stack EmberZnet 3.5.x (ZigBee PRO)
RF characteristics Frequency: 2405 MHz ÷ 2480 MHz
Modulation: DSSS
Nominal transmission power: 1mW (0 dBm)
Receiver sensitive: -92 dBm
External antenna gain: 5,5 dB
Outdoor/indoor range: 100m/30m
Supply 12-24 Vcc/Vca (±10%); 100mA; 50/60Hz
Connections Power Supply: plug off morsels (3,81 mm pitch)
RS-485 Interface: plug off morsels (3.81 mm pitch)
Environment Parameters Operating temperature: -10 ÷ +60°C; <80% U.R. non condensing
Storage temperature: -20 ÷ +70°C; <80% U.R. non condensing
Degree of protection: IP 55
Compliant with 2006/95/EEC, 89/336/EEC, 99/5/EEC directives
Product law applied
ETSI EN 300 328: Radio Compatibility for digital wide band transmissions
ETSI EN 301 489: Radio Compatibility
EN 61000-6-2: Electromagnetic Compatibility – Emissions
EN 61000-6-3: Electromagnetic Compatibility – Immunity
EN 60950-1: Electric Security