Wha-gw, Operation, 1 leds – VEGA WHA-GW-WIRELESSHART GATEWAY User Manual

Page 65

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WHA-GW-*

Operation

22

1981

2011

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7

65

6.1.1

LEDs

Figure 6.2LED indicators

LED indicators

1 RS-485 communication status (yellow LED)

2 Power supply (green LED)

3 WirelessHART communication status (yellow LED)

4 Fault (red LED)

5 Ethernet communication status (yellow LED)

LED indicators

RS-485 communication status (yellow LED)

LED flashes

A HART or MODBUS message is received by the gateway via the
serial interface. The LED does not flash if the message is not
addressed to the gateway or if a communication error was
detected within the message.

LED off

No serial communication at present.

Power supply (green LED)

LED on

Power connected, gateway ready.

LED flashes

Power connected, but gateway not yet ready to send wireless
commands. This occurrs for example after power-up or after a
device reset.

LED off

Power disconnected. The LED may remain off for up to 40
seconds after connection to power (system boot-up).

WirelessHART communication status (yellow LED)

LED flashes

A WirelessHART message is received by the gateway via the
wireless interface (including published commands and excluding
published events and notifications).

LED off

No wireless communication at present.

Fault (red LED)

LED on

Hardware fault which makes normal operation of the gateway
impossible.

LED flashes

Under certain conditions the LED flashes while the gateway
application tries to eliminate the fault.

LED off

No hardware fault.

Ethernet communication status (yellow LED)

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