Vega WHA-GW-WIRELESSHART GATEWAY Bedienungsanleitung PDF herunterladen (Seite 90)

221981 2011-07

WHA-GW-*

Technical specifications

9 Technical specifications

9.1 WHA-GW

Number of channels 2-channel

Interface

HART

, HART

UDP, MODBUS RTU, MODBUS TCP

Wireless interface

WirelessHART

Supply

Rated voltage 20 ... 30 V DC

Power consumption < 5 W

External bus

Connection screw terminals for

- 0.2 ... 4 mm

(rigid wire)

- 0.2 ... 2.5 mm

(flexible wire)

Interface 1 Ethernet

10 BASE-T/100 BASE-TX , full galvanic isolation

Protocol

HART

UDP, MODBUS TCP

Cable length max. 100 m , depending on cables and transfer rate

Connection UTP, STP or FTP

Interface 2 RS 485

Protocol

HART

communication protocol, MODBUS RTU

Daisy-chain capability supported by duplicated connection terminals

Transfer rate max. 115 kBit/s

Cable length max. 1200 m , depending on cables and transfer rate

Bus termination integrated termination resistor, adjustable via DIP switch

and software

Input

Number of channels 250

Interface omnidirectional dipole antenna, removable

Communication

WirelessHART

specifications

- physical layer: IEEE 802.15.4.2006

- frequency band: 2.4 GHz (ISM band, licence free)

- transmission rate: 250 kBit/s

- max. transmit power: +10 dBm (EIRP)

- transmission range: outdoor 250 m, indoor 50 m (under

reference conditions)

- communication standard: WirelessHART

Electrical isolation

Interface/power supply Basic insulation according to IEC 61140, rated insulation

voltage 50 V

eff

Interface/interface Basic insulation according to IEC 61140, rated insulation

voltage 50 V

eff

Indicators/settings

Display elements LED PWR (power supply status), one green LED

LED COM (communication status), two yellow LEDs

LED FLT (fault signal), one green LED

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