Gill Instruments Ltd
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WindObserver 65
Page 30
Issue 4
Doc. No. 1390-PS-0039
June 2016
7.3.
Networking
Gill Proprietary Network
Each anemometer connected to the network
MUST
be given a unique Unit Identifier
(Letters A to Z), and set to a polled tri-state mode (UV or Polar) (
M3
,
M4
or
M13
).
In these modes the communications transmit line is tri-state unless the anemometer is
responding to a command. If used in a multi drop system then it is recommended that Unit
Identifiers A, B, C, D, E, F, K, M, N and P are not used.
Configuring WindObserver 65 for Half Duplex Operation.
1)
Set up Two Terminals: One for RS485 Half Duplex and the other for RS422 Full
Duplex.
SWITCH
WObs
II
RS485
I
/F
(USB)
RS422
I
/F
(USB)
HYPER-TERMINAL
A (Half-D)
HYPER-TERMINAL
B (Full-D)
b (4-wire)
a (2-wire)
One PC (with two USB ports) can be used for both Terminals, although two may be less
confusing.
Note: Power must not be disconnected from the anemometer throughout this procedure.
2)
Assuming the unit is set for Full Duplex, connect 9-way at [b] disconnect 9-way at
[a]. Set Switch to position [b] (4 wire).
3)
On Terminal B, enter CONFIGURATION MODE. Set Half Duplex (E2). The
CONFIRM> prompt will appear.
4)
Disconnect 9-way [b] and connect 9-way [a]. Set Switch to position [a] (2 wire).
5)
On Terminal A, type “E” <ENTER> to confirm.
6)
The unit should now be configured in Half Duplex mode.
Configuring WindObserver 65 for Full Duplex Operation.
1)
Assuming the unit is set for Half Duplex, disconnect 9-way [b] and connect 9-way
[a]. Set Switch to position [a] (2 wire).
2)
On Terminal A, type “E1” to select Full Duplex. The CONFIRM> prompt will
appear.
3)
Disconnect 9-way [a] and connect 9-way [b]. Set Switch to position [b] (4 wire).
4)
On Terminal B type “E” <ENTER> to confirm.
