Eleris EM303B, Руководство пользователя

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User Manual
EM303B General Purpose Inverter
181
}
else
{
crc_value = crc_value>>1;
}
}
}
return(crc_value);
}
12.5.5 Error Message Response
Inverter will send an error message report when the master sends error data or inverter
receives the error data due to the external interference.
When Communication error occurs, slave combines the highest bit 1 of command code and
error code as the response to the master.
Responding data frame format when errors happened in Communication:
ADU Item Byte No. Range
Error response:
Address of slave
1 0
～
127
Error command code 1 The highest bit 1 of command code
Error code 1 0x01
～
0x13
CRC parity(Low bytes go first) 2
Responding command code at normal Communication and error Communication
Responding Command Code at Normal
Communication Responding Command Code at Error
Communication
03H 83H
06H 86H
10H 90H
08H 88H
Description of Error Code
Error
Code Description Error
Code Description
01H Exceptional command code 06H Slave is busy
02H Exceptional data address 10H Frame error: Frame length error, parity error
03H Exceptional data 11H Parameter read only
04H Slave operation failure 12H Parameter is uneditable in operation.
05H Command enabled, in the
process 13H Parameter is protected by password
For instance: Master sends data frame in hexadecimal format for F0-00to write 50.00HZ
frequency.
01H 06H 00H 00H 13H 88H 84H 9CH