Dyacon UA-1, Руководство пользователя, Страница: 20 / 29

Modbus DYACON UA-1 Manual
UA is a Modbus slave device, the Modbus host must request data from the sensor.
The following describes the Modbus commands and messages. The basic instructions should be
adequate for Modbus host programming. For embedded developers, additional protocol details
are contained in the Modbus Appendix.
The default configuration:
Modbus address 01
Serial Data Parameters 19200, 8-bit data, no parity, 1 stop bit
Supported Functions and Exception Codes
Function Description Supported Error and Exception codes*
3 Read Holding Register 0x83: 01, 02, 03, 04
4 Read Input Register 0x84: 01, 02, 03, 04
6 Write Single Register 0x86: 01, 02, 03, 04
16 Write Multiple Registers 0x90: 01, 02, 03, 04
* See Error Code table below for more information.
Sensor Data Requests
Address Register Access Type Response
Range
Data Type Description
201 202 Read 0 to 500* 16-bit Signed Int Wind speed (m/s)
202 203 Read 0 to 3599* 16-bit Signed Int Wind direction (°)
203 204 Read 0 to 500 16-bit Signed Int 2 min avg wind speed
204 205 Read 0 to 3599 16-bit Signed Int 2 min avg wind direction
205 206 Read 0 to 500 16-bit Signed Int 10 min avg wind speed
206 207 Read 0 to 3599 16-bit Signed Int 10 min avg wind direction
207 208 Read 0 to 500 16-bit Signed Int Wind gust speed
208 209 Read 0 to 3599 16-bit Signed Int Wind gust direction
† See System Status Code section below.
* See Data Format section for numeric conversions.
Page 20/29