Preen AFV+ Series - 5.2.3 Communication Fail Answer Format

AFV
+
Series High Power Programmable AC Power Supply
5-92
5.2.3 Communication Fail Answer Format
Slave Address
Function
Code
Error Code
CRC16
DevAddr
Func
ErrCode
CRC_H CRC_L
 Byte1 (Device Address)：0x02 (Editable)
 Byte2 (Function Code)：
Function Code
Description
0x83
Read Register Address Error
0x86
Write Single Register Address Error
0x90
Write Multiple Register Addresses Error
 Byte3 (Error Code)：
Error Code
Description
0x01
CRC Checksum Error
0x02
Data Format Incorrect
0x03
Start Address does not exist
0x04
Data Length Out of Range
 Byte 4,5：CRC16 checksum of Byte1 to Byte3 (refer Chapter4 CRC calculation)