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WindSonic Doc No 1405 PS 0019 Issue 28 November 2019

7.9 Using RS485 (2 wire point to point) with Option 2 or 3

units

Notes

1. The unit must be set for RS422/485 mode (E2 setting).

2. WindSonics must be set in Polled mode, a node address letter may be given if

required.

See Section 9.1 WindSonic node address.

3. Customers may poll using terminal software (NOT supplied).

4. As unit is point to point only it cannot be networked with other RS485 2 wire devices.

WindSonic

9 Way circular connector

PC with RS485 card

Signal names

nos.

Cable – 3 twisted pairs

Signal names

TXD+

RXD+

T/RXD +

TXD –

RXD –

T/RXD –

Signal Ground

Do NOT connect

at this end

N/A

Screen and drain wires

Chassis ground

V supply +

V supply -

–

DC Power supply

(See Para 7.3.2)

NOTE:

Analogue Outputs are also simultaneously available from the Option 3 unit.

Gill WindSonic User Manual

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