WHA-GW-*
Operation
22
1981
2011
-0
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
Wireless
HART 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).
Wireless
HART communication status (yellow LED)
LED flashes
A
Wireless
HART 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)