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ZC-GW-USB-EM

Gateway Modbus USB

  • Protocol converter from Modbus/RTU to ZigBee
  • USB interface
  • Coordinator function for a ZigBee network
  • Local memory stores battery powered sensors data
  • Transparent bridge towards other Modbus devices
  • External antenna
  • Power supplied from the USB port

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Modbus ZigBee USB Gateway – ZC-GW-USB-EM

The USB ZigBee ZC-GW-USB-EM – Modbus Gateway is part of the range of 4-noks ZigBee devices. The purpose for which it was created is to interface a Personal Computer with the network of 4-noks ZigBee devices through the USB port and a standard protocol widely used such the Modbus/RTU. The employment of the Modbus protocol grants an immediate use of many commercial Scada for PC.

The device is powered directly from the USB port. The gateway, for what concerns the ZigBee network, is one of the available coordinating type devices. This means that it has an active function creating the network and keeping the radio traffic between the ZIgBee network devices. Moreover, it can work as a “father” device for the battery powered sensors of the same range and can memorize the information they asynchronously transmit compared to the ModBus interrogations.

Along with the ZR-BR-485-EM device, this gateway offers a transparent Modbus channel.

Technical Specs
General characteristics EM2420 Ember Chip
Compatible IEEE 802.15.4
EmberZnet Stack 3.5.x (ZigBee PRO)
Modbus/RTU
RF characteristics Frequency: 2405 MHz ÷ 2480 MHz
Modulation: DSSS
Nominal power transmission: 1mW (0 dBm)
Receiver sensitive: -92 dBm
External antenna gain: 5,5 dB
Outdoor/indoor range: 100m/30m
Supply +5 Vcc from USB; 50mA
Connections USB 2.0
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 50
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