airGATEWAY
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Application Note
Since airGATEWAY is able to find the most suitable channel, it is recommended to create the network
directly in the final installation place.
Instead, when activating by sending the command password, choosing the channel, PAN ID and
extended PAN ID is left to the operator.
This second option is useful when a faulty airGATEWAY needs to be replaced and is performed by
supplying the network parameters which are identical to those which were assigned to the replaced
device. In this way, it is possible to substitute the Gateway without necessarily recreating the entire
network.
Two Gateways
should never have
the same network parameters
when working on the
same network. This would generate confusion, as both devices would share the same
network address and thus it will be impossible for the network to work properly.
For further explanations on network creation by command password refer to the airGATEWAY
instructions manual M98253-03-xxx
5
OPENING AND CLOSING THE NETWORK
The term "open network" indicates a network to which new devices can be annexed. The term "closed
network" indicates that the network cannot accept new devices.
The network made up of airLINK devices is a normally closed network, which can only be opened from
the airGATEWAY.
Network opening and closing operations are performed by pressing the push-button on the airGATEWAY
or by using the Modbus protocol to send the Gateway the suitable command.
6
GATEWAY LED INDICATORS AND PUSH BUTTON (USB/RS485 VERSIONS)
The airGATEWAY has three LED through which it is possible to obtain information on the device's
operating status. Furthermore, the Gateway has a push-button which makes possible to command the
device. The nomenclature of air GATEWAY LED indicators can be seen in Fig. 6-1
Push
button
“A” (external LED ) “B” (central LED)
“C” (right
LED)
Fig. 6-1. airGATEWAY LED
identification
6.1
LED behaviour at the start-up:
After a RESET of the Gateway, all the LED light for 2
seconds, then all flash fast during another 2 seconds. At the
end of flashing, the device starts the normal operation.
6.2
LED indications when the airGATEWAY is NOT on
the network:
LED “A” is permanently ON , LED “B” and LED “C” are
permanently OFF
6.3
LED
indications when the Gateway is on the network:
LED “A”: Shows the Working Status
Slow flashing (1Hz)
Closed Gateway
Fast flashing (4Hz)
Open Gateway
LED “B” (central LED): Shows the Radio Link status
OFF
No Router with good link in the proximity
1 flash + pause
One Router with good link in the proximity
2 f pause
Two Routers with good link in the proximity
3 f pause
Four or more Routers with good link in the proximity
