Project Description

ZigBee RS485 Modbus Gateway Print datasheet

A complete range of gateways between ZB wireless device networks and Modbus RS485 networks connected to a PC / SCADA supervisor via Modbus protocol

Main technical specifications
  • Modbus/RTU 485 to ZigBee Modbus protocol converter
  • Coordinator function within ZigBee networks
  • Master function in the transmission of data acquired from ZigBee nodes to the PC / SCADA supervisor
  • Standard Modbus RS485 interface
  • External (interchangeable) antenna for maximum efficiency
  • Building energy management systems
  • Building automation and industrial control systems

These gateways are mainly used to route data from sensors monitoring environment and energy parameters and to control electrical devices and/or signalling systems.

They connect ZigBee low energy wireless device networks (comprising sensors, actuators, pulse counters, etc.) to cabled networks via Modbus RS485 protocol.

These gateways also permit asynchronous data acquisition from network nodes and high efficiency transmission direct to the supervisor.

Modbus protocol gateways ensure the easy integration of ZigBee wireless devices with third party systems in civil, commercial and industrial energy management, energy saving and automation projects.

Connection diagram
Models available
Image Code Description
ZC-GWP485-EM ZC-GWP485-EM Modbus RS485 gateway; 12 to 24 Vdc power supply; Italian standard power plug
ZC-GWP485-EM ZC-GWP485-EMUK Modbus RS485 gateway; 230 Vac power supply; UK standard power plug
ZC-GWP485D-EM-01 ZC-GWP485D-EM Modbus RS485 gateway for DIN rail; 230 Vac power supply
Technical specifications
General specifications Ember EM3587 chip
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 with 5.5 dB gain
Radio range: max 70 m outdoors
SMA-RP antenna connector
Power supply ZC-GW-P485-EMxx: 12 to 24 Vdc, 100 mA; 12 to 15 Vac, 50 to 60 Hz, 2.4 VA
ZC-GW-P485D-EM: 85-250 Vac, 50 to 60 Hz
Status display 3x indicator LEDs
Connectoins ZC-GW-P485-EMxx: push-in terminals (3.81 mm pitch)
ZC-GW-P485D-EM: screw terminals
Mounting ZC-GW-P485-EMxx: wall-fixing with screws
ZC-GW-P485D-EM: DIN rail
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 ZC-GW-P485-EMxx: IP51
ZC-GW-P485D-EM: IP30
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) ZC-GW-P485-EMxx: 94 x 118 x 35 mm
ZC-GW-P485D-EM: 72 x 110 x 60 mm
Weight ZC-GW-P485-EMxx: 125 g
ZC-GW-P485D-EM: 165 g
Mechanical drawings

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