Gill WindObserver 65 - Page 48

48
gillinstruments.com
Issue: 8 (Applies to firmware 2387 6.09 onwards)
Document number: 1390-PS-0039
Ultrasonic Anemometer
Gill Proprietary Network
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.
Equipment required for configuring full/half duplex:
• DC power supply, capable of providing 9 to 30vdc & 55mA.
• Pair of serial to USB adaptors, 1 for RS422 & 1 for 2-wire RS485.
• PC with a terminal package installed.
Power must not be disconnected from the anemometer throughout this procedure.
Configuring WindObserver 65 for Half Duplex Operation:
Process:
1. Connect both serial to USB adaptors to the PC and open a terminal connection for each one.
2. Connect the WindObserver to the power supply and wire the RS422 output to the RS422 adaptor
(reference section xx for details).
3. Power up the WindObserver, data should begin scrolling in the RS422 terminal window.
4. Enter configuration mode (reference Appendix E for details) and type E2 <ENTER> to set half duplex. The
confirm prompt will appear.
5. Disconnect the WindObserver from the RS422 adaptor and connect it to the RS485 adaptor. Power must
remain to the WindObserver at this point.
6. In the RS485 terminal window type E <ENTER> to confirm. The WindObserver will now be set for half
duplex.
Configuring WindObserver 65 for Full Duplex Operation:
1. Follow steps 1 & 2 above.
2. Connect the WindObserver to the RS485 adaptor and in the terminal window place the unit into
configuration mode.
3. Type E1 <ENTER> to set full duplex, the confirm prompt will appear.
4. Disconnect the WindObserver from the RS485 adaptor and connect it to the RS422 adaptor. Power must
remain to the WindObserver at this point.
In the RS422 terminal window type E <ENTER> to confirm. The WindObserver will now be set to full duplex.