ModBus RS485 - ZigBee Bridge
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The Bridge has the main function to connect through a ZigBee network one or more Modbus slave devices equipped with RS485 interface to one of the Gateways of the 4-noks products family.
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In this way the PLC or PC-SCADA connected to the Gateway can communicate with Modbus slave devices eliminating wire installation. This channel is completely transparent. Furthermore it can be a repeater and a parent device for battery powered sensors.
Key features
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- Connecting ModBus devices to the ZigBee network
- Using ModBus/RTU protocolo and RS485 interface
- Routing function
- RF power 1mW
- External antenna
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Technical Specs
General characteristics
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Chip Ember EM2420
Compatible con IEEE 802.15.4
Stack EmberZnet 3.5.X (ZigBee PRO)
Modbus/RTU |
RF Characteristics
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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 |
| Supply |
12-24 Vcc/Vca (±10%); 100mA; 50/60Hz |
| Connections |
Supply: pull out terminals (3,81 mm pitch)
RS-485 interface: extraction clamps (pitch 3.81 mm) |
| Environment parameters |
Operating temperature: -10 ÷ +60°C; <80% U.R. not condensing
Storage temperature: -20 ÷ +70°C; <80% U.R. not condensing
Degree of protection: IP 55 |
| Approvals |
ETSI EN 300 328: Radio Compatibility for digitals 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 Safety |
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ZB-Connection 
