////Gateway Modbus RS485
  • ZC-GW-485-EM

Gateway Modbus RS485

Gateway Modbus RS485

SKU: ZC-GW-485-EM. Categories: , .

Product Description

Key features

  • Protocol converter from Modbus/RTU to ZigBee
  • Standard Modbus RS485 interface
  • Coordinator function for a ZigBee network
  • Local memory stores battery powered sensors data
  • Transparent bridge towards other Modbus devices
  • External antenna

How it works

The Gateway Modbus RS485 is part of the family of 4-noks wireless ZigBee devices. Its purpose is to be an interface between a PLC (Programmable Logic Control) or a Personal Computer and the network of 4-noks ZigBee devices using an universal standard protocol such as Modbus/RTU via RS485 serial interface. The use of Modbus protocol guarantees an immediate use of all commercial PLC and many SCADA for PCs.
Its role in the ZigBee network is Coordinator: i.e. it forms an active part of creating the network and maintaining wireless traffic from and to other similar devices. Furthermore it can function as parent device for battery powered sensors of the same family and saves data that they asynchronously send regardless of Modbus requests.
In conjunction with the bridge ZR-BR-485-EM, this gateway offers a transparent Modbus channel.

Technical specs

General characteristics
Chip Ember EM2420
Compatible IEEE 802.15.4
Stack EmberZnet 3.5.x (ZigBee PRO)
Radio characteristics Frequency: 2405 MHz ÷ 2480 MHz
Modulation: DSSS
Nominal transmission power: 1mW (0 dBm)
Reception sensitivity: -92 dBm
Extern antenna Gain: 5,5 dB
Coverage outdoor/indoor: 100m/30m
Power supply 12-24 Vdc/Vac (±10%); 100mA; 50/60Hz
Connection RS485 with pull out terminals (3,81 mm pitch)
Installation Wall mounted on DIN rails
Environmental conditions Operating temperature: -10 ÷ +60°C; <80% U.R. not condensing
Storage temperature: -20 ÷ +70°C; <80% U.R. not condensing
Degree of protection IP55
Conformity Community Directives 2006/95/CE, 89/336/EEC, 99/5/EEC; ETSI EN 300-328; ETSI EN 301-489; EN60950-1; EN50371; EN61000-6-2; EN 61000-6-3