SHENZHEN ENCOM ELECTRIC TECHNOLOGIES CO. enc eds800-2s0002n User Manual page 125

10.6 Communication error processing
Inverter receiving data packet detection error, it finds reading&writing parameter
address or parameter value invalid, so reply to the host with communication error
response packet. Communication error response packet (host command code +80H)
as command code, with 1 byte error code.
Format for communication error response packet as follows:
communication error code
Low byte of CRC checksum
High byte of CRC checksum
Meaning for each communication error code value as follows:
Communication error code value
EDS800 series Service Manual
ADR
CMD
0x01
0x02
0x03
0x04
0x05
0x06
83H/86H
01H~06H (for details, please check below table)
Obtain by calculating
Obtain by calculating
Type of communication error
CRC checksum error
Command code illegal
Register address visited illegal
Value to register illegal
Not allow to modify parameters
Register number read illegal
120
01H