Lambrecht rain[e]observer, Руководство по эксплуатации

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rain[e]observer Operating Instructions
Operating Instructions
rain[e]observer Precipitation Measuring System
Big-Endian example (1 register value):
16 bit value
0x1234 is transmitted in the order: 0x12 0x34.
Big-Endian example (2 register value):
32 bit value
0x12345678 is transmitted in the order: 0x12 0x34 0x56 0x78.
To obtain the actual measured value, divided the received register value by the divisor. Values of -9999 (16 bit
value) or -9999999 (32 bit value) indicate and internal sensor error.
11.2 Device address
Modbus allows for the addresses 1...247.
11.3 Standard configuration - default
Baud rate: 19200 baud
Address: Each sensor type (or family) is given its own default address.
Default addresses of Lambrecht sensors:
Address Sensor
1 Wind speed
2 Wind direction
3 Precipitation Rain[e]
4 THP
5
EOLOS IND · u[sonic]WS6
6 com[b]
7
PREOS
8 ARCO
9 u[sonic]
10 Pyranometer 2nd Class
11 Secondary standard pyranometer
12 PT100 to Modbus converter (temperature)
13 u[sonic]WS7
Byte frame in accordance with Modbus standard for RTU mode:
8E1 (1 start bit, 8 data bits, 1 parity bit (even parity), 1 stop bit)
11.4 Modbus command set
The Lambrecht Modbus sensors support the following commands.
• Read holding register command: 0x03 (descriptive sensor data register)
• Read input register command: 0x04 (measurement value register, each measured value to be
requested individually)
• Write multiple register command: 0x10 (writing in configuration register)
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