Gill Instruments Ltd
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WindObserver 65
Page 16
Issue 4
Doc. No. 1390-PS-0039
June 2016
Networking units
Before coupling units into a network:
Each device must be configured with a unique Unit Identifier (letter A to Z)
however in multi drop systems it could be advised to avoid using letters A-F,
KMN and P as they could appear in the data string.
Unit must be set for half duplex mode (E2 setting) see Para 7.3).
It must be configured to a tri-state polled mode
M3
or
M4
.
See also Section 8 - Configuring
WindObserver 65
Converter,
PC, or Logger
Signal
Names
19 Way
Connector
Cable Gland
RS485 2 wire
Pin No.
Pair No
Colour
Signal Names
TXB (+)
P
1
Green
RXB (+)
U
2
White
T/RXB (+)
TXA (-)
C
1
Black
T/RXA (-)
RXA (-)
V
2
Black
Digital 0v
M
4
Blue
Signal Ground
Connected Internally
Ground Earth
R
3
Red
+ve Sensor
Sensor -
D
3
Black
-ve PSU
*
A
5
Yellow
+ Heater
Heater -
B
5
Black
- PSU *
*For Power Supply Information see Section 6.4.
Note:
Each unit in the network will require its own power supplies.
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