Eaton DC1-12011 Series, Manual

Page: 158 / 194

7 Serial interface (Modbus RTU)
7.3 Operating mode Modbus RTU
154
DC1 Frequency Inverter 10/12 MN04020003Z-EN www.eaton.com
7.3.4.2 Function code 06
hex
: Writing a holding register
This function writes data to a holding register.
Example
Writing of the control word (ID 1) of a DC1 frequency inverter with the slave
address 1.
Master request: 01 06 0000 0001 480A
hex
Slave response: 01 06 0000 0001 480
hex
The slave response is a copy of the master request if it is a normal response.
hex Name
01 Station address
06 Function code (writing a holding register)
0000 0: The ID of the register for the writing operation is 1, since the master controller has an offset of +1.
0001 Content (2 byte) for register 0000 0000 0000 001
bin
￫ RUN
480A CRC
hex Name
01 Station address
06 Function code (here. Writing of a holding register)
0000 1: The ID of the register for the writing operation is 1, since the master controller has an offset of +1.
0001 Content (2 byte) for register 0000 0000 0000 001
bin
￫ RUN
B844 CRC
￫
Function code 06
hex
can be used for a broadcast.