Eaton PowerXL DA1 Communications Manual page 45

2.6.6.2 Function code 06 : Writing a holding register
hex
This function writes data to a holding register.
Example
Writing of the control word (ID 1) of a DA1 variable frequency drive with the
slave address 1.
Master request: 01 06 0000 0001 480A
Rregister address Type name
[hex]
01 Slave 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
480A CRC
Slave response: 01 06 0000 0001 480
The slave response is a copy of the master request if it is a normal response.
Rregister address Type name
[hex]
01 Slave address
06 Function code (here: writing 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
480A CRC
￫
Function code 06
Modbus RTU for variable frequency drive DA1, DC1, DE1 09/16 MN040018EN www.eaton.com
2.6 Operating mode Modbus RTU
hex
hex
can be used for a broadcast.
hex
2 Modbus RTU
￫ RUN
bin
￫ RUN
bin
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