Project Description

ZigBee Modbus Bridge Print datasheet

A ZigBee wireless device for connecting third party Modbus RS485 devices to a ZigBee Modbus Gateway
Main technical specifications
  • Connects third party Modbus/RTU devices to the ZigBee radio network
  • Modbus / RTU protocol
  • RS485 interface for connection to the PLC/Scada
  • Routing functionality
  • External antenna
  • Building energy management systems
  • Building automation and industrial control systems

Wireless connection device between a ZigBee Gateway and one or more third party Modbus devices connected to the Bridge via 485.

The ZigBee Bridge simplifies the connection of third party devices as it does not require cables to connect to the PLC/Scada. This facilitates installation in large buildings.

Information is exchanged between the PLC (or PC-Scada) connected to the Gateway and the third party Modbus devices via the ZigBee wireless network, with no cables required.

Thanks to mains power, the device can also function as a ZigBee signal repeater and as a parent device for battery powered sensors.

Connection diagram
Models available
Image Code Description
ZR-B-P485-EM ZR-B-P485-EM High power, amplified ZigBee-RS485 Modbus RTU Bridge
Power: 12-24 Vdc power, power supply with Italian standard 230 Vac / 24 Vdc plug included
Technical specifications
General specifications Chip Ember EM3587
Compatible with IEEE 802.15.4
Stack EmberZnet 5.3.1 (ZigBee PRO)
Modbus / RTU
Radio specifications Frequency: 2405 MHz to 2480 MHz
Modulation: DSSS
Nominal transmission power: 1 mW (0 dBm)
Receiver sensitivity: -92 dBm
Antenna External antenna with 5 dB gain
Radio range: 100 m outdoor; 30 m indoor
Antenna connector SMA-RP antenna connector
Power supply 12 to 24 Vdc, 100 mA; 12 to 15 Vac, 50 to 60 Hz, 2.4 VA
Status display 3x indicator LEDs
Connections Power supply: push-in terminals (3.81 mm pitch)
RS485 interface: push-in terminals (3.81 mm pitch)
Inputs RS-485 input
Mounting Wall-fixing with screws
Ambient parameters Operating conditions: -10 to +60 °C; <80% R.H. n. c. Storage conditions: -20 to +70 °C; <80% R.H. n. c.
Degree of protection IP51
Insulation Class II
Conformity ETSI EN 300 328; ETSI EN 301 489-1; ETSI EN 301 489-17; EN 61000-6-1; EN 61000-6-3; EN 60950-1; EN62311
Directives 2014/53/EU (RED) 2011/65/EU (RoHS) 2012/19/EU (WEEE) 1999/519/EC
Dimensions (L x H x D) 94 x 116 x 35 mm
Weight 130 g
Mechanical drawings

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