Part 4. Rs-485 Communication; Default Communication Settings; List Of The Measurement Registers - F&F LE-01MR v2 User Manual

domestic and industrial automation

Part 4. RS-485 communication

The meter is equipped with a RS-485 communication interface that supports the Modbus RTU protocol.

Default communication settings

No. Parameter
3 Meter address in the RS-485 network 1
4 Baud rate
5 Parity
6 Number of stop bits

List of the measurement registers

All measurement results are read-only. Data reading, according to Modbus RTU protocol, is carried out
using the Read Holding Register command (command code 0x03).
Data format:
INT32 – 32-bit signed integer
INT16 – 16-bit signed integer
The data is encoded as an integer. To obtain the actual value of the measured data, multiply
the read value by the multiplier given in the table below.
Example:
The register with the voltage value has the value of 241700. To obtain the correct value in V,
perform the following action: 241700 * 0.001 = 241,700 V
No. Parameter
1 Voltage
2 Current
3 Active power
LE-01MR v.2 – User manual v.1.0.0
Default value:
9600 bps
None
1
Address
R/W
HEX DEC
0x100 256
0x102 258
0x104 260
Num-
ber of
Format
Unit
regis-
ters
R 2 INT32
R 2 INT32
R 2 INT32
Multi-
plier
V 0.001
A 0.001
W 1
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