Communication Protocol - Modbus Rtu - Kaiterra Sensedge Mini Modbus User Manual

KAITERRA
3.

Communication Protocol - Modbus RTU

Data type and format: Data length=8
Stop bit=1
Transmission rate=9600
Check: even
Data format Address
Data length 1
Default modbus address code is 0x01
Commands
1) Read Input Register (0x04) command 01 04 00 00 00 05 30 09 to read all input
register
2) Write single Register (0x06) command 01 06 00 00 00 02 08 0B to set the
modbus address to 0x02
3) Read holding Register (0x03) command 01 03 00 00 00 02 C4 0B to read all
holding register
Function Data
1 N
Error check
16 digit CRC code
(Cyclic Redundancy Check)
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