CDE360 Vector Control AC Drive Chapter 8 Communication Protocol
2. Communication write command: 06H or 44H
Function code: 06H or 44H, write one word, the function code 44H and 06H has the same
structure, but 44H doesn’t change the EEPROM value.
Example: Set the value to register ID 2302H, the slave address is 01H, the frame structure shows
as following:
Master request frame:
ADR
（
Slave address
）
01 H
CMD
（
Function code
）
06 H
Register ID high byte
23 H
Register ID low byte
02 H
Register comment high byte
13 H
Register comment low byte
88 H
CRC low byte
2E H
CRC high byte
D8 H
Slave response frame:
ADR
（
Slave address
）
01 H
CMD
（
Function code
）
06 H
Register ID high byte
23 H
Register ID low byte
02 H
Register comment high byte
13 H
Register comment low byte
88 H
CRC low byte
2E H
CRC high byte
D8 H
Error response frame:
ADR
（
Slave address
）
01 H
Error code (CMD+0x80)
86 H
Exception code
02 H: Invalid address
03 H: Read number over range
04 H:
Parameter can’t be write or write value out of range
05 H: Length Error of the Data Frame
CRC low byte
LCRC H
CRC high byte
HCRC H
