Error code and exception code
If a slave receives the request without a communication error, but cannot handle
it, the slave will return an exception response which includes error code and ex-
ception code informing the master of the nature of the error. The error code is
formed by setting the MSB of the function code to 1 (i.e. function code plus
with 0x80, like 0x83, 0x86, 0x90, 0x97), then the exception response has a for-
mat shown below.
Slave No.
Error code
Exception code
CRC16
Lo | Hi
Exception codes for EFC x610 frequency converters:
●
1 = Parameter cannot be modify owing to user password locked
●
2 = The function requested is not recognized by the slave, i.e. not equal to 3,
6, 8, 16 or 23
●
3 = The word address indicated in the request do not exist in the slave
●
4 = The word values indicated in the request are not permissible in the slave
●
5 = Parameters cannot be modify in run mode
●
6 = Parameters are read-only that cannot be modified
●
7 = Invalid operation which is decided by the function of frequency convert-
er
(*)
●
9 = EEPROM read/write error
●
B = Function code 3, read range exceeds 16
(*)
includes situations listed below:
●
Write operations on b0.11 'Parameter copy', U1.00 'Run monitor-
ing display', U1.10 'Stop monitoring display' and C1.01 'Motor pa-
rameter tuning', are prohibited.
●
Write operations on b0.20 'User password', b0.21 'Manufacture
password' and b0.10 'Parameter initialization' only support func-
tion 6.
●
Multi-function digital input terminals (E1.00...E1.04) writing oper-
ation do not permit repeated non-zero value.
Bosch Rexroth AG
Communication
EFC x610 Series
266/389
DOK-RCON03-EFC-X610***-IT05-EN-P
